{"product_id":"420-12t-front-sprocket-17mm-pit-dirt-bike-atv","title":"420-12T Front Sprocket 17mm for 50cc-150cc Pit Dirt Bike ATV","description":"\u003ch2\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis 420-12T front sprocket is designed as a replacement drive sprocket for many 50cc, 70cc, 90cc, 110cc, 125cc, 140cc, and 150cc pit bikes, dirt bikes, motorcycles, and ATVs using a compatible 420 chain setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe sprocket helps transfer engine power from the front drive shaft to the chain, supporting smooth acceleration and stable drivetrain performance. A worn or damaged front sprocket may cause chain slipping, abnormal noise, poor power transfer, or faster chain wear.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMade from heat-treated steel, this sprocket is built for durability, wear resistance, and long service life. The inner diameter is 17mm \/ 0.67\", and the mounting hole distance is 30mm \/ 1.18\". Please compare the chain size, tooth count, shaft size, hole distance, and product photos with your original sprocket before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Compatibility\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eVehicle Type\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eCompatible Application\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePit Bike\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50cc \/ 70cc \/ 90cc \/ 110cc \/ 125cc \/ 140cc \/ 150cc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDirt Bike\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible models using 420 chain and 17mm front sprocket shaft\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMotorcycle\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSmall engine models when sprocket size matches\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eATV \/ Quad\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible models using 420-12T front sprocket setup\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⚠️ This is a size-specific front sprocket. Please confirm your original sprocket uses a 420 chain, 12-tooth design, 17mm inner diameter, and matching mounting hole distance before purchase.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eItem\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFront Drive Sprocket\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eChain Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e420\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTooth Count\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12T\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInner Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e17mm \/ 0.67\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Hole Distance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30mm \/ 1.18\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHeat-Treated Steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Engine Sizes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50cc \/ 70cc \/ 90cc \/ 110cc \/ 125cc \/ 140cc \/ 150cc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApplication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePit Bike \/ Dirt Bike \/ Motorcycle \/ ATV\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePackage Includes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 × Front Sprocket, Holder and Bolts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCondition\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% Brand New\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003e420-12T front sprocket for 50cc-150cc pit bikes, dirt bikes, motorcycles, and ATVs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e17mm inner diameter for compatible front drive shaft applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e30mm mounting hole distance for size matching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeat-treated steel construction helps improve wear resistance and durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncludes sprocket holder and bolts for convenient replacement installation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GOOFIT","offers":[{"title":"Default Title","offer_id":54473577791656,"sku":"Q001-032","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/9821\/6104\/files\/Front-Sprocket-420-12T-17mm-For-50cc-150cc-Engine-0.jpg?v=1770787057","url":"https:\/\/goofitmoto.com\/products\/420-12t-front-sprocket-17mm-pit-dirt-bike-atv","provider":"GOOFIT Moto","version":"1.0","type":"link"}