{"product_id":"420-12t-17mm-front-sprocket-bolts-kit","title":"420-12T Front Engine Sprocket (17mm) for 50cc–150cc Dirt Pit Bike \u0026 ATV","description":"\u003ch2 data-path-to-node=\"3\" class=\"\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cspan class=\"\"\u003eOptimize your gear ratio with this \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"35\" class=\"\"\u003e420-12T Heavy-Duty Front Sprocket\u003c\/b\u003e\u003cspan class=\"\"\u003e,\u003c\/span\u003e\u003cspan class=\"\"\u003e specifically designed for the standard 17mm output shaft found on most 50cc to 150cc horizontal engines.\u003c\/span\u003e\u003cspan class=\"\"\u003e Crafted from high-grade steel and subjected to specialized heat treatment,\u003c\/span\u003e\u003cspan class=\"\"\u003e this sprocket is built to endure the high-torque demands of off-road riding.\u003c\/span\u003e\u003cspan class=\"\"\u003e Whether you are upgrading a pit bike or repairing an ATV,\u003c\/span\u003e\u003cspan class=\"\"\u003e this 12-tooth configuration offers a perfect balance of low-end torque and mid-range speed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-path-to-node=\"6\"\u003eProduct Compatibility\u003c\/h2\u003e\n\u003ctable data-path-to-node=\"7\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,1,0,0\"\u003e\u003cb data-path-to-node=\"7,1,0,0\" data-index-in-node=\"0\"\u003eEngine Displacement\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,1,1,0\"\u003e50cc, 70cc, 90cc, 110cc, 125cc, 140cc, 150cc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,2,0,0\"\u003e\u003cb data-path-to-node=\"7,2,0,0\" data-index-in-node=\"0\"\u003eVehicle Types\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,2,1,0\"\u003ePit Dirt Bikes, Motorcycles, ATVs, 4-Wheelers\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,3,0,0\"\u003e\u003cb data-path-to-node=\"7,3,0,0\" data-index-in-node=\"0\"\u003eChain Pitch\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,3,1,0\"\u003e\u003cb data-path-to-node=\"7,3,1,0\" data-index-in-node=\"0\"\u003e420\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,4,0,0\"\u003e\u003cb data-path-to-node=\"7,4,0,0\" data-index-in-node=\"0\"\u003eShaft Fitment\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,4,1,0\"\u003e17mm Countershaft (Standard Small Displacement)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,5,0,0\"\u003e\u003cb data-path-to-node=\"7,5,0,0\" data-index-in-node=\"0\"\u003eCommon Engines\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"7,5,1,0\"\u003eLifan, YX, Zongshen, Loncin, TaoTao\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 data-path-to-node=\"9\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable data-path-to-node=\"10\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,1,0,0\"\u003e\u003cb data-path-to-node=\"10,1,0,0\" data-index-in-node=\"0\"\u003eModel\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,1,1,0\"\u003e420 Style \/ 12 Teeth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,2,0,0\"\u003e\u003cb data-path-to-node=\"10,2,0,0\" data-index-in-node=\"0\"\u003eInner Diameter\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,2,1,0\"\u003e17mm (0.67\")\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,3,0,0\"\u003e\u003cb data-path-to-node=\"10,3,0,0\" data-index-in-node=\"0\"\u003eMounting Hole Distance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,3,1,0\"\u003e30mm (1.18\") center-to-center\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,4,0,0\"\u003e\u003cb data-path-to-node=\"10,4,0,0\" data-index-in-node=\"0\"\u003eMaterial\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,4,1,0\"\u003eHeat-Treated High-Carbon Steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,5,0,0\"\u003e\u003cb data-path-to-node=\"10,5,0,0\" data-index-in-node=\"0\"\u003ePackage Includes\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"10,5,1,0\"\u003e1 x Sprocket, 1 x Retainer Clip (Holder), 2 x Bolts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 data-path-to-node=\"12\"\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"13,0,0\"\u003e\n\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eComplete Installation Kit:\u003c\/b\u003e Unlike standard sprockets, this package includes a \u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"78\"\u003efree retainer holder and mounting bolts\u003c\/b\u003e, allowing for a complete and secure installation right out of the box.\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,1,0\" id=\"p-rc_86c5e95c1833d778-182\"\u003e\n\u003cspan class=\"citation-261\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-261\"\u003eHeat-Treated Steel Construction:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-261 citation-end-261\"\u003e The steel is \"hot-treated\" to increase surface hardness, ensuring the teeth resist rounding and wear even when subjected to the abrasive sand and mud of dirt tracks.\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,2,0\"\u003e\n\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003ePrecision 12-Tooth Design:\u003c\/b\u003e Sized for 420 chains, the 12T geometry provides a mechanical advantage that improves acceleration compared to larger sprockets, making it ideal for technical trails.\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,3,0\" id=\"p-rc_86c5e95c1833d778-183\"\u003e\n\u003cb data-path-to-node=\"13,3,0\" data-index-in-node=\"0\"\u003eUniversal 17mm Fitment:\u003c\/b\u003e\u003cspan class=\"citation-260 citation-end-260\"\u003e Designed to fit the most common small-engine output shafts, featuring a 30mm bolt-hole spacing compatible with standard sprocket locking plates.\u003csup class=\"superscript\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,4,0\"\u003e\n\u003cb data-path-to-node=\"13,4,0\" data-index-in-node=\"0\"\u003eLong-Term Durability:\u003c\/b\u003e Engineered for high-mileage use, the robust construction maintains its structural integrity under high-RPM operation, reducing chain slap and improving drivetrain stability.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GOOFIT","offers":[{"title":"Default Title","offer_id":54473577758888,"sku":"Q001-034","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/9821\/6104\/files\/Front-Sprocket-420-13T-17mm-1.jpg?v=1770787051","url":"https:\/\/goofitmoto.com\/products\/420-12t-17mm-front-sprocket-bolts-kit","provider":"GOOFIT Moto","version":"1.0","type":"link"}