{"title":"Top End Kit","description":"","products":[{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx50-09-23-tc50-17-23-mc50-21-23-size-b-39-46mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX50 09-23, TC50 17-23, MC50 21-23 SIZE A.B - 39.46MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTOP END PISTON KIT 23429AB - 39.46MM\u003cbr\u003eGAS GAS\u003cbr\u003eMC50 21-23\u003c\/p\u003e\n\u003cp\u003eKTM\u003cbr\u003e50 SX 09-23\u003c\/p\u003e\n\u003cp\u003eHUSQVARNA\u003cbr\u003eTC50 17-23\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":48996692033840,"sku":"VTK23429AB","price":82.8,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx50-09-23-tc50-17-23-mc50-21-23-size-a-b-39-46mm-copy","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX65 09-23, TC65 17-23, MC65 21-23 SIZE A.B - 44.96MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two strokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTOP END PISTON KIT 23430AB - 44.96MM\u003cbr\u003eGAS GAS\u003cbr\u003eMC65 21-23\u003c\/p\u003e\n\u003cp\u003eKTM\u003cbr\u003eSX65 09-23\u003c\/p\u003e\n\u003cp\u003eHUSQVARNA\u003cbr\u003eTC65 17-23\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":48996712251696,"sku":"VTK23430AB","price":88.2,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx85-18-24-tc85-18-24-mc85-21-24-size-b-46-95mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX85 18-25, TC85 18-25, MC85 21-25 (VARIOUS SIZES)","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTOP END PISTON KIT 24212B-2 - 46.95MM\u003cbr\u003eGAS GAS\u003cbr\u003eMC85 21-25\u003c\/p\u003e\n\u003cp\u003eKTM\u003cbr\u003eSX85 18-25\u003c\/p\u003e\n\u003cp\u003eHUSQVARNA\u003cbr\u003eTC85 18-25\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"A 46.94mm","offer_id":55267214918008,"sku":"VTK24212A-2","price":112.49,"currency_code":"GBP","in_stock":true},{"title":"B 46.95mm","offer_id":55267214950776,"sku":"VTK24212B-2","price":112.49,"currency_code":"GBP","in_stock":true},{"title":"C 46.96mm","offer_id":55267214983544,"sku":"VTK24212C-2","price":112.49,"currency_code":"GBP","in_stock":false},{"title":"D 46.97mm","offer_id":55267215016312,"sku":"VTK24212D-2","price":112.49,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-husky-sx85-13-17-tc85-14-17-size-b-46-95mm","title":"TOP END PISTON KIT KTM\/HUSKY SX85 13-17, TC85 14-17 (VARIOUS SIZES)","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTOP END PISTON KIT VTK24212B-1 46.95MM\u003cbr\u003eKTM\u003cbr\u003eSX85 13-17\u003c\/p\u003e\n\u003cp\u003eHUSKY\u003cbr\u003eTC85 14-17\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"A 46.94mm","offer_id":55267456483704,"sku":"VTK24212A-1","price":98.99,"currency_code":"GBP","in_stock":false},{"title":"B 46.95mm","offer_id":55267456516472,"sku":"VTK24212B-1","price":98.99,"currency_code":"GBP","in_stock":false},{"title":"C 46.96mm","offer_id":55267456549240,"sku":"VTK24212C-1","price":98.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-tc125-16-22-xc-w-tx125-17-19-mc125-21-23-53-95mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX\/TC125 16-22, XC-W\/TX125 17-19, MC125 21-23 (VARIOUS SIZES)","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTOP END PISTON KIT 23928B-3 - 53.95MM\u003cbr\u003eGAS GAS\u003cbr\u003eMC125 21-23\u003c\/p\u003e\n\u003cp\u003eKTM\u003cbr\u003e125 SX 16-22\u003cbr\u003e125 XC-W 17-19\u003c\/p\u003e\n\u003cp\u003eHUSKY\u003cbr\u003eTC125 16-22\u003cbr\u003eTX125 17-19\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"A 53.94mm","offer_id":55267276587384,"sku":"VTK23928A-3","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"B 53.95mm","offer_id":55267276620152,"sku":"VTK23928B-3","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"C 53.96mm","offer_id":55267276652920,"sku":"VTK23928C-3","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"D 53.97mm","offer_id":55267276685688,"sku":"VTK23928D-3","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"E 53.98mm","offer_id":55267276718456,"sku":"VTK23928E-3","price":125.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-tc125-23-24-mc125-2024-size-a-53-94mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX\/TC125 23-26, MC125 24-26 (VARIOUS SIZES)","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-md-8 col-sm-12\"\u003e\n\u003cdiv class=\"tab-section description-details\"\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv id=\"description2\" class=\"tab-pane fade active show\" itemprop=\"description\"\u003e\n\u003cp\u003eTOP END PISTON KIT 23928A-4 - 53.94MM\u003cbr\u003eGAS GAS\u003cbr\u003eMC125 24-\u003c\/p\u003e\n\u003cp\u003eKTM\u003cbr\u003e125 SX 23-25\u003c\/p\u003e\n\u003cp\u003eHUSKY\u003cbr\u003eTC125 23-25\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Vertex","offers":[{"title":"A 53.94mm","offer_id":55267269837176,"sku":"VTK23928A-4","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"B 53.95mm","offer_id":55267269869944,"sku":"VTK23928B-4","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"C 53.96mm","offer_id":55267269902712,"sku":"VTK23928C-4","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"D 53.97mm","offer_id":55267269935480,"sku":"VTK23928D-4","price":125.99,"currency_code":"GBP","in_stock":false},{"title":"E 53.98mm","offer_id":55267269968248,"sku":"VTK23928E-4","price":125.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-tc250-17-22-exc-tpi-te250-17-23-mc-ec250-21-23-size-a-66-34mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX\/TC250 17-22, EXC\/TPI\/TE250 17-23, MC\/EC250 21-23 SIZE A - 66.34MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-md-8 col-sm-12\"\u003e\n\u003cdiv class=\"tab-section description-details\"\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane fade active show\" id=\"description2\" itemprop=\"description\"\u003e\n\u003cp\u003eTOP END PISTON KIT - 66.34MM\u003cbr\u003eGAS GAS\u003cbr\u003eMC250 22-23\u003cbr\u003eEC 250 21-23\u003c\/p\u003e\n\u003cp\u003eKTM\u003cbr\u003e250 SX 17-22\u003cbr\u003e250 EXC 17-18\u003cbr\u003e250 EXC-TPI 18-23\u003c\/p\u003e\n\u003cp\u003eHUSKY\u003cbr\u003eTC250 17-22\u003cbr\u003eTE 250 17-18\u003cbr\u003eTE 250 I 18-23\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":48996758815024,"sku":"VTK23630A-2","price":203.4,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-tc250-17-22-exc-tpi-te250-17-23-mc-ec250-21-23-size-b-66-35mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX\/TC250 17-22, EXC\/TPI\/TE250 17-23, MC\/EC250 21-23 SIZE B - 66.35MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-md-8 col-sm-12\"\u003e\n\u003cdiv class=\"tab-section description-details\"\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv id=\"description2\" class=\"tab-pane fade active show\" itemprop=\"description\"\u003e\n\u003cp\u003eTOP END PISTON KIT - 66.35MM\u003cbr\u003eGAS GAS\u003cbr\u003eMC250 22-23\u003cbr\u003eEC 250 21-23\u003c\/p\u003e\n\u003cp\u003eKTM\u003cbr\u003e250 SX 17-22\u003cbr\u003e250 EXC 17-18\u003cbr\u003e250 EXC-TPI 18-23\u003c\/p\u003e\n\u003cp\u003eHUSKY\u003cbr\u003eTC250 17-22\u003cbr\u003eTE 250 17-18\u003cbr\u003eTE 250 I 18-23\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":48996762747184,"sku":"VTK23630B-2","price":203.4,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-tc250-23-24-exc-te250-2024-mc-ec250-2024-size-b-66-35mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX\/TC250 23-25, EXC\/TE250 2024, MC\/EC250 2024 SIZE B - 66.35MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Two-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. This creates better power and performance, also making them less susceptible to rattling or breaking.\u003cbr\u003e• Silicon gives the pistons better wear characteristics and prolongs piston life by decreasing wear on the piston skirt.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 2 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Wrist Pin Bearing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"col-md-8 col-sm-12\"\u003e\n\u003cdiv class=\"tab-section description-details\"\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv id=\"description2\" class=\"tab-pane fade active show\" itemprop=\"description\"\u003e\n\u003cp\u003eTOP END PISTON KIT - 66.35MM\u003cbr\u003eGAS GAS MX\u003cbr\u003eMC250 24-\u003c\/p\u003e\n\u003cp\u003eGAS GAS ENDURO\u003cbr\u003eEC250 24-\u003c\/p\u003e\n\u003cp\u003eKTM MX\u003cbr\u003e250 SX 23-24\u003c\/p\u003e\n\u003cp\u003eKTM ENDURO\u003cbr\u003e250 EXC 24-\u003c\/p\u003e\n\u003cp\u003eHUSKY MX\u003cbr\u003eTC250 23-24\u003c\/p\u003e\n\u003cp\u003eHUSKY ENDURO\u003cbr\u003eTE250I 24-\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":48996763468080,"sku":"VTK23630B-3","price":203.4,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-2ST.jpg?v=1724324060"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-f-fc250-23-24-exc-f-fe250-2024-mc-f-ec-f250-2024-size-a-80-96mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX-F\/FC250 23-24, EXC-F\/FE250 2024, MC-F\/EC-F250 2024 SIZE A - 80.96MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Four-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003ch4\u003eFour-stroke engines have much higher cylinder pressures when compared to two-strokes and are generally manufactured from forgings. To handle the internal pressures of a four-stroke engine, Vertex’s four-stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. Vertex uses unique piston profi les and compression ratios, offered in A, B, C and D sizes, to maximize power and performance while reducing blow-by and oil consumption.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 4 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Cam Chain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTOP END PISTON KIT - 80.96MM\u003cbr\u003eGAS GAS MX\u003cbr\u003eMC250F 24-\u003c\/p\u003e\n\u003cp\u003eGAS GAS ENDURO\u003cbr\u003eEC250F 24-\u003c\/p\u003e\n\u003cp\u003eKTM MX\u003cbr\u003e250 SX-F 23-24\u003c\/p\u003e\n\u003cp\u003eKTM ENDURO\u003cbr\u003e250 EXC-F 24-\u003c\/p\u003e\n\u003cp\u003eHUSKY MX\u003cbr\u003eFC250 23-24\u003c\/p\u003e\n\u003cp\u003eHUSKY ENDURO\u003cbr\u003eFE250 24-\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":48996769300784,"sku":"VTKTC24615A","price":243.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-4ST.jpg?v=1724326077"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-f-fc250-23-24-exc-f-fe250-2024-mc-f-ec-f250-2024-size-b-80-97mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX-F\/FC250 23-24, EXC-F\/FE250 2024, MC-F\/EC-F250 2024 SIZE B - 80.97MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Four-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003ch4\u003eFour-stroke engines have much higher cylinder pressures when compared to two-strokes and are generally manufactured from forgings. To handle the internal pressures of a four-stroke engine, Vertex’s four-stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. Vertex uses unique piston profi les and compression ratios, offered in A, B, C and D sizes, to maximize power and performance while reducing blow-by and oil consumption.\u003cbr\u003e\u003cbr\u003eAiding in the break-in process and reducing wear, every Vertex piston has a Molybdenum Disulphide (MOS2) coating on the piston skirt.\u003c\/h4\u003e\n\u003ch4\u003e• Standard pistons and components are OEM replacements.\u003cbr\u003e• Kits include piston, rings, wrist pin and circlips.\u003cbr\u003e• All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle.\u003cbr\u003e• Replacement rings are sold individually.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan\u003eFor 4 Stroke Engines:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Complete Piston Kit, Top End Gasket Kit \u0026amp; Cam Chain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTOP END PISTON KIT - 80.97MM\u003cbr\u003eGAS GAS MX\u003cbr\u003eMC250F 24-\u003c\/p\u003e\n\u003cp\u003eGAS GAS ENDURO\u003cbr\u003eEC250F 24-\u003c\/p\u003e\n\u003cp\u003eKTM MX\u003cbr\u003e250 SX-F 23-24\u003c\/p\u003e\n\u003cp\u003eKTM ENDURO\u003cbr\u003e250 EXC-F 24-\u003c\/p\u003e\n\u003cp\u003eHUSKY MX\u003cbr\u003eFC250 23-24\u003c\/p\u003e\n\u003cp\u003eHUSKY ENDURO\u003cbr\u003eFE250 24-\u003c\/p\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":48996774805808,"sku":"VTKTC24615B","price":243.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/VTK-4ST_6588b5c4-6d5a-4799-a03e-fea248039357.jpg?v=1724326200"},{"product_id":"top-end-piston-kit-ktm-hqv-gas-sx-f250-16-22-fc250-16-22-mc250f-21-23-size-b-77-97mm","title":"TOP END PISTON KIT KTM\/HQV\/GAS SX-F250 16-22, FC250 16-22, MC250F 21-23 SIZE B - 77.97MM","description":"\u003ch1\u003e\u003cstrong\u003eVertex Four-stroke Pistons\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch4\u003eManufactured in Italy, Vertex, the premier brand of OEM replacement pistons, is the OEM supplier to KTM and numerous European motorcycle and go-kart manufacturers. Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003ch4\u003eFour-stroke engines have much higher cylinder pressures when compared to two-strokes and are generally manufactured from forgings. To handle the internal pressures of a four-stroke engine, Vertex’s four-stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. 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Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. 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Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity cast from an aluminum alloy with\u003cbr\u003e18% silicon content. Silicon is important because:\u003cbr\u003e• It decreases thermal expansion, which changes the geometry after the piston reaches operating temperature. With low thermal expansion characteristics, Vertex pistons can be run at tighter tolerances compared with forged pistons. 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Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. 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Vertex offers enthusiasts state-of-the-art, high-quality pistons for nearly any powersport use from motorcycles and ATVs to marine and karting. Manufactured to the highest standards in Japan, Vertex’s piston rings are produced by the OEM suppliers so that they are direct OEM replacements. Vertex is the choice of those who truly seek the optimum in powersport performance in any application.\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eCast vs. Forged\u003cbr\u003eWhat’s better and why:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eBecause of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because twostrokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. Therefore we offer a wide range of ProX pistons in standard size, as well as in A, B, C, D+ oversizes.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for sleeved cylinders\u003c\/strong\u003e\u003cbr\u003eProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversizes. The availability of oversizes up to 2mm significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities.\u003cbr\u003eTake advantage of the additional oversizes to extend the lifespan of plated cylinders. All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePiston Kit Includes\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePiston\u003c\/li\u003e \u003cli\u003eRing set\u003c\/li\u003e \u003cli\u003eGudgeon Pin \u003c\/li\u003e \u003cli\u003eCirclips\u003c\/li\u003e \u003c\/ul\u003e","brand":"ProX","offers":[{"title":"Default Title","offer_id":49103475245360,"sku":"PX01.1218.A2","price":113.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/PX01.2T250CC__24839__68130__60820__77971__54352.jpg?v=1727357674"},{"product_id":"prox-piston-kit-cr125-04-53-95mm","title":"ProX Piston Kit CR125 04 (53.95mm)","description":"\u003ch1\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eProX Piston Kit CR125 04 (53.95mm)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e \u003cp\u003eProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. Therefore we offer a wide range of ProX pistons in standard size, as well as in A, B, C, D+ oversizes.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for sleeved cylinders\u003c\/strong\u003e\u003cbr\u003eProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversizes. The availability of oversizes up to 2mm significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities.\u003cbr\u003eTake advantage of the additional oversizes to extend the lifespan of plated cylinders. All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePiston Kit Includes\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePiston\u003c\/li\u003e \u003cli\u003eRing set\u003c\/li\u003e \u003cli\u003eGudgeon Pin \u003c\/li\u003e \u003cli\u003eCirclips\u003c\/li\u003e \u003c\/ul\u003e","brand":"ProX","offers":[{"title":"Default Title","offer_id":49103475409200,"sku":"PX01.1222.B","price":115.19,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/PX01.2T250CC__24839__68130__60820__77971__09415.jpg?v=1727357680"},{"product_id":"prox-piston-kit-cr125-05-07-53-94mm","title":"ProX Piston Kit CR125 05-07 (53.94mm)","description":"\u003ch1\u003e\u003cspan style=\"font-size: x-large;\"\u003e\u003cstrong\u003eProX Piston Kit CR125 05-07 (53.94mm)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e \u003cp\u003e\u003cspan style=\"font-size: small;\"\u003eProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: small;\"\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: small;\"\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: small;\"\u003eThe latest cylinders are plated by a Nicasil plating. Therefore we offer a wide range of ProX pistons in standard size, as well as in A, B, C, D+ oversizes.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eProX pistons for sleeved cylinders\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: small;\"\u003eProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversizes. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. Therefore we offer a wide range of ProX pistons in standard size, as well as in A, B, C, D+ oversizes.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for sleeved cylinders\u003c\/strong\u003e\u003cbr\u003eProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversizes. The availability of oversizes up to 2mm significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities.\u003cbr\u003eTake advantage of the additional oversizes to extend the lifespan of plated cylinders. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePiston Kit Includes\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePiston\u003c\/li\u003e \u003cli\u003eRing set\u003c\/li\u003e \u003cli\u003eGudgeon Pin \u003c\/li\u003e \u003cli\u003eCirclips\u003c\/li\u003e \u003c\/ul\u003e","brand":"ProX","offers":[{"title":"Default Title","offer_id":49103482126640,"sku":"PX01.1338.B","price":166.79,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/PX01.4T450CC__50026__40587__09255__24849.jpg?v=1727357745"},{"product_id":"prox-piston-kit-crf250r-10-13-13-2-1-art-76-78mm","title":"ProX Piston Kit CRF250R 10-13  13.2:1 ART (76.78mm)","description":"\u003ch1\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eProX Piston Kit CRF250R 10-13  13.2:1 ART (76.78mm)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e \u003cp\u003eProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. Therefore we offer a wide range of ProX pistons in standard size, as well as in A, B, C, D+ oversizes.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for sleeved cylinders\u003c\/strong\u003e\u003cbr\u003eProX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversizes. The availability of oversizes up to 2mm significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities.\u003cbr\u003eTake advantage of the additional oversizes to extend the lifespan of plated cylinders. All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePiston Kit Includes\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePiston\u003c\/li\u003e \u003cli\u003eRing set\u003c\/li\u003e \u003cli\u003eGudgeon Pin \u003c\/li\u003e \u003cli\u003eCirclips\u003c\/li\u003e \u003c\/ul\u003e","brand":"ProX","offers":[{"title":"Default Title","offer_id":49103486910768,"sku":"PX01.1342.B","price":166.79,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/PX01.4T450CC__50026__40587__32095.jpg?v=1727357755"},{"product_id":"prox-piston-kit-crf250r-14-15-13-5-1-art-76-78mm","title":"ProX Piston Kit CRF250R 14-15 13.5:1 ART (76.78mm)","description":"\u003ch1\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eProX Piston Kit CRF250R 14-15 13.5:1 ART (76.78mm)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e \u003cp\u003eProX pistons are precision machined on the latest, state of the art CNC equipment. 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All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePiston Kit Includes\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePiston\u003c\/li\u003e \u003cli\u003eRing set\u003c\/li\u003e \u003cli\u003eGudgeon Pin \u003c\/li\u003e \u003cli\u003eCirclips\u003c\/li\u003e \u003c\/ul\u003e","brand":"ProX","offers":[{"title":"Default Title","offer_id":49103490744624,"sku":"PX01.1343.B","price":166.79,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/PX01.4T450CC__50026__40587__17069.jpg?v=1727357757"},{"product_id":"prox-piston-kit-crf250r-14-15-13-5-1-art-76-79mm","title":"ProX Piston Kit CRF250R 14-15 13.5:1 ART (76.79mm)","description":"\u003ch1\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eProX Piston Kit CRF250R 14-15 13.5:1 ART (76.79mm)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e \u003cp\u003eProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePiston Kit Includes\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePiston\u003c\/li\u003e \u003cli\u003eRing set\u003c\/li\u003e \u003cli\u003eGudgeon Pin \u003c\/li\u003e \u003cli\u003eCirclips\u003c\/li\u003e \u003c\/ul\u003e","brand":"ProX","offers":[{"title":"Default Title","offer_id":49103491465520,"sku":"PX01.1343.C","price":166.79,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/0278\/5328\/files\/PX01.4T450CC__50026__40587__18515.jpg?v=1727357760"},{"product_id":"prox-piston-kit-crf250r-16-17-13-8-1-76-78mm","title":"ProX Piston Kit CRF250R 16-17  13.8:1 (76.78mm)","description":"\u003ch1\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eProX Piston Kit CRF250R 16-17  13.8:1 (76.78mm)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e \u003cp\u003eProX pistons are precision machined on the latest, state of the art CNC equipment. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCoated for ultimate performance\u003c\/strong\u003e\u003cbr\u003eMost of the ProX pistons come with a coating. Our OEM style Tin coated pistons assist the wear in process when you just started the bike.\u003cbr\u003eWe have developed a new skirt coating that not only assists the wear in process, but also helps reducing friction after the wear in. The black coating is made from a delicate mix of materials and will increase performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eProX pistons for Nicasil\/plated cylinders\u003c\/strong\u003e\u003cbr\u003eThe latest cylinders are plated by a Nicasil plating. 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