{"product_id":"driven-racing-420-rear-sprocket-for-honda-grom-and-monkey-125-169-541","title":"Driven Racing 420 Rear Sprocket for Honda Grom and Monkey 125","description":"\u003cp\u003eDriven Racing EVO TECH rear sprocket for Honda Grom and Monkey 125cc with 420 chain. This is a high quality, case hardened steel replacement sprocket.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eDriven Honda Grom and Monkey 125 rear sprockets for 420 chain are available in 34 tooth, which is the stock rear sprocket size for the 2021 and earlier Honda Grom. The rear sprocket size on the 2022 Grom is 38t.\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003ePlease Note: 2022+ rear sprockets are not interchangeable with 2021 and earlier model Groms. Choose 34t for 2021 and earlier models. Choose 38t for 2022 and newer models.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eA few rules regarding gear ratios for sprockets are as follows:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDrop teeth on front\/add teeth to rear = increased torque, increased acceleration, wheelies, racetracks with short straights\u003c\/li\u003e\n\u003cli\u003eAdd tooth on front\/reduce teeth on rear = increased top end speed, open road cruising, lowers RPMs, better gas mileage, tracks with long straights\u003c\/li\u003e\n\u003cli\u003e1 down on the front is like adding 3 teeth on the rear\u003c\/li\u003e\n\u003cli\u003eThe bigger the rear sprocket, the lower the gearing and the faster the acceleration\u003c\/li\u003e\n\u003cli\u003eAvailable in 34 and 38 Tooth\u003c\/li\u003e\n\u003cli\u003eCase Hardened\u003c\/li\u003e\n\u003cli\u003eFits #420 Chain\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 58mm\u003c\/li\u003e\n\u003cli\u003eDiagonal Bolt Spacing: 89mm\u003c\/li\u003e\n\u003cli\u003eMade in USA!\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eHonda Grom 125\u003c\/p\u003e","brand":"Driven Racing USA","offers":[{"title":"38T","offer_id":49986419949848,"sku":"169-541   38T","price":35.0,"currency_code":"USD","in_stock":true},{"title":"34T","offer_id":49986421719320,"sku":"169-541   34T","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/667476.jpg?v=1744838040","url":"https:\/\/www.scooterworks.com\/products\/driven-racing-420-rear-sprocket-for-honda-grom-and-monkey-125-169-541","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}