{"product_id":"renthal-257-428-13gp-front-sprocket-moto-house-mx","title":"Renthal Front Sprocket (13 Tooth, Natural) 257-428-13GP - Yamaha \/ Kawasaki 2002-2026","description":"\u003ch1\u003e\u003cstrong\u003eRenthal Front Sprocket (13 Tooth, Natural) 257-428-13GP - Yamaha \/ Kawasaki 2002-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eRenthal Front Sprocket\u003c\/strong\u003e is precision-engineered for mini dirt bikes and street motorcycles, offering maximum durability and efficient power transfer.\u003c\/p\u003e\n\u003cp\u003eCNC-machined from case-hardened and core-refined 655M13 nickel chromium steel, this countershaft sprocket features self-cleaning mud grooves at each tooth to reduce wear and prevent debris buildup while offering a 10-15% weight savings through its ultralight design.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Renthal Front Sprocket\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCNC-machined from case-hardened and core-refined 655M13 nickel chromium steel.\u003c\/li\u003e\n\u003cli\u003eMachined self-cleaning mud grooves at each tooth prevent mud buildup and increase wear resistance.\u003c\/li\u003e\n\u003cli\u003eUltralight design delivers a 10-15% weight savings compared to standard sprockets.\u003c\/li\u003e\n\u003cli\u003eEngineered for 428 chain size applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/p\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ85 LW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eKawasaki\u003c\/td\u003e\n\u003ctd\u003eBR125 Z125 PRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2022, 2025-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: What material is this front sprocket made from?\u003c\/b\u003e\u003cbr\u003eA: It is CNC-machined from case-hardened and core-refined 655M13 nickel chromium steel.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What chain size is this sprocket designed for?\u003c\/b\u003e\u003cbr\u003eA: This sprocket is designed for a 428 chain size.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: How does the self-cleaning design work?\u003c\/b\u003e\u003cbr\u003eA: It features machined mud grooves at each tooth to clear out dirt and mud, increasing overall wear resistance.\u003c\/p\u003e\n\u003ch3\u003eExpert Pro-Tip\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e Always inspect your chain and rear sprocket when replacing your countershaft sprocket. Mating a new front sprocket with heavily worn components will accelerate wear and reduce drive efficiency.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-2-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha Performance Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/kawasaki-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eKawasaki Performance Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eMotorcycle Tools \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAbout Moto-House MX\u003c\/h3\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions\u003c\/strong\u003e - Your premier powersports source with great customer service and lightning-fast shipping straight to your door.\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Renthal","offers":[{"title":"Default Title","offer_id":41255637614675,"sku":"257--428-13GP","price":35.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/renthal-front-countershaft-sprocket-257-428-13gp-2002-2023-yamaha-yz85-13-tooth-432864.jpg?v=1735462175","url":"https:\/\/motohousemx.com\/products\/renthal-257-428-13gp-front-sprocket-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}