{"product_id":"driven-racing-428-front-sprocket-for-honda-grom-and-monkey-125","title":"Driven Racing 428 Front Sprocket for Honda Grom and Monkey 125","description":"Driven Racing EVO TECH front sprocket for Honda Grom and Monkey 125cc with 428 chain.\u003cbr\u003e \u003cp\u003eDriven Honda Grom and Monkey 125 front sprockets are available in 13t, 14t and 15t options. The stock front sprocket size on the Honda Grom is 15 tooth. You can go down to 13t or14t to increase your low end acceleration. A few rules regarding gear ratios for sprockets are as follows: \u003c\/p\u003e \u003cul\u003e \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\u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003c\/p\u003e\u003cul\u003e \r\n\u003cli\u003eAvailable in 14 Tooth \u0026amp; 15 Tooth\u003c\/li\u003e\n\u003cli\u003eCase Hardened\u003c\/li\u003e\n\u003cli\u003eFits #428 Chain\u003c\/li\u003e\n\u003cli\u003eInner Diameter (peak to peak): 14mm  \r\n\u003c\/li\u003e\n\u003cli\u003eInner Diameter (valley to valley): 17mm  \r\n\u003c\/li\u003e\n\u003cli\u003eThread Size: M6x1.00\u003c\/li\u003e\n\u003cli\u003eMade in USA!\u003c\/li\u003e\n\u003c\/ul\u003eHonda CR 80R ('85), Honda CT 70-3Spd ('69-'94), Honda Grom 125, Honda XL 80S ('80-'86), Honda XR 70R ('97-'99), Honda ZB 50 ('88), Various unlisted makes\/models","brand":"Classic Scooters","offers":[{"title":"Default Title","offer_id":47678106599589,"sku":"169-540   13T","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/2627\/1141\/files\/667471_80a1e446-60b5-4cb7-8eac-d3ab7518b67a.jpg?v=1774953193","url":"https:\/\/classicscootersusa.com\/products\/driven-racing-428-front-sprocket-for-honda-grom-and-monkey-125","provider":"Classic Scooters USA","version":"1.0","type":"link"}