{"product_id":"driven-racing-428-front-sprocket-for-honda-grom-and-monkey-125-169-540","title":"Driven Racing 428 Front Sprocket for Honda Grom \u0026 Monkey 125","description":"\u003ch2\u003ePerformance Gearing: Driven Racing EVO TECH 428 Front Sprocket\u003c\/h2\u003e\u003cp\u003eTake control of your Mini-Moto’s power delivery with the \u003cstrong\u003eDriven Racing EVO TECH Front Sprocket\u003c\/strong\u003e. Engineered using proprietary EST Technology, this is one of the lightest 428-pitch steel sprockets on the market. Whether you're looking for wheelie-popping torque or smoother highway cruising, these sprockets are the gold standard for Honda 125cc builds.\u003c\/p\u003e\u003ch3\u003eThe Driven Racing Advantage\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEVO TECH Weight Reduction:\u003c\/strong\u003e Drilled and machined surfaces remove unnecessary rotating mass for faster throttle response without sacrificing strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase-Hardened Steel:\u003c\/strong\u003e Manufactured from high-strength chromoly steel for maximum longevity and wear resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Finish:\u003c\/strong\u003e Features a laser-etched Driven logo and an attractive black-zinc semi-gloss finish to prevent corrosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Precision-engineered for a perfect fit on the Honda countershaft.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComplete Model Fitment Guide\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eCRITICAL NOTE:\u003c\/span\u003e\u003c\/strong\u003e This is a 428-pitch sprocket. It will NOT work with your stock 420 chain. This is intended for 428 chain conversion kits.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eManufacturer\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eCompatible Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHonda\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrom 125 \/ MSX125 (2014-2026), Monkey 125 (2019-2026), Super Cub C125, Trail 125 (CT125)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClassic Honda\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCT70 (3-Speed), XL80S, XR70R, ZB50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOther\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZS190 Engine Swaps, Ohvale Mini-GP Bikes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain Pitch:\u003c\/strong\u003e 428 (Conversion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 14mm (Peak to Peak) \/ 17mm (Valley to Valley)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Two M6x1.00 Threaded Holes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Case-Hardened Chromoly Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 169-540\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eGearing Cheat Sheet:\u003c\/strong\u003e \u003cbr\u003e• \u003cstrong\u003e13T (Best Acceleration):\u003c\/strong\u003e Maximum torque for wheelies and short tracks. Top speed limited to ~65mph. \u003cbr\u003e• \u003cstrong\u003e14T (Improved Snap):\u003c\/strong\u003e The \"sweet spot\" for most riders. Better acceleration with minimal top-speed loss. \u003cbr\u003e• \u003cstrong\u003e15T (Stock Ratio):\u003c\/strong\u003e Best for big-bore kits or riders looking for lower cruising RPMs.\u003c\/blockquote\u003e\u003cp style=\"font-size: 0.85em; color: #666;\"\u003e\u003cem\u003eNote: 1 tooth down on the front is roughly equivalent to adding 3 teeth to the rear sprocket. Orientation matters—install with the laser-etched logo facing outward.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Driven Racing USA","offers":[{"title":"14T","offer_id":49986417525016,"sku":"169-540   14T","price":18.0,"currency_code":"USD","in_stock":true},{"title":"13T","offer_id":50045904093464,"sku":"169-540   13T","price":19.0,"currency_code":"USD","in_stock":true},{"title":"15T","offer_id":50045904126232,"sku":"169-540   15T","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/667471.jpg?v=1744837992","url":"https:\/\/www.scooterworks.com\/products\/driven-racing-428-front-sprocket-for-honda-grom-and-monkey-125-169-540","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}