{"product_id":"moose-offroad-12111588-rear-aluminum-sprocket-yamaha-moto-house-mx","title":"Moose Offroad Rear Aluminum Sprocket (50T) 1211-1588 - Yamaha YZ \/ WR \/ TTR 1999-2025","description":"\u003ch1\u003e\u003cstrong\u003eMoose Offroad Rear Aluminum Sprocket (50T) 1211-1588 - Yamaha YZ \/ WR \/ TTR 1999-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eMaximize your drivetrain efficiency with the \u003cstrong\u003eMoose Offroad\u003c\/strong\u003e Rear Aluminum Sprocket 1211-1588. Built for riders demanding top-tier performance on the track or trail, this 50-tooth silver sprocket combines lightweight construction with exceptional durability to handle high-horsepower acceleration.\u003c\/p\u003e\n\u003cp\u003eCrafted from premium 7075-T651 aluminum, each sprocket undergoes an extra tempering process to minimize distortion and provide superior thickness compared to standard alternatives. Fully machined with no stamping or grinding, it guarantees a true fit and optimal chain engagement for smooth power delivery.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Moose Offroad Rear Aluminum Sprocket\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConstructed from high-grade 7075-T651 aluminum with an extra tempering process to reduce distortion and enhance lifespan.\u003c\/li\u003e\n\u003cli\u003e100% precision machined construction—completely free of weak stamped or ground edges.\u003c\/li\u003e\n\u003cli\u003eOptimized tooth thickness engineered to deliver maximum tooth-to-chain contact surface area.\u003c\/li\u003e\n\u003cli\u003eLightweight design minimizes rotating mass to improve acceleration and suspension response.\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\u003e2020-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ125X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250FX \u0026amp; YZ450FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2024\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F \u0026amp; WR450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250F \u0026amp; WR250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2002\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR426F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR 400 F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2002\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ426F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2001\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ 400 F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2024\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2000\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR400F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ 426 F, YZ400F \u0026amp; WR 426 F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eTT-R 230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2009\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eTTR230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eTTR230\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: Does this sprocket come with mounting hardware?\u003c\/b\u003e\u003cbr\u003eA: No, this package includes the rear aluminum sprocket only. Existing hardware can be reused, though checking bolt condition during installation is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What chain size is this sprocket designed to fit?\u003c\/b\u003e\u003cbr\u003eA: This sprocket is engineered to fit a standard 520 chain size.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Is an aluminum sprocket suitable for off-road racing?\u003c\/b\u003e\u003cbr\u003eA: Yes, the 7075-T651 aluminum material with extra tempering provides the ideal balance of lightweight racing performance and enhanced wear resistance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e Always replace your chain and front sprocket at the same time you install a brand-new rear sprocket. Mating a new aluminum sprocket to a worn, stretched chain will cause premature tooth wear and drastically shorten the lifespan of your drivetrain.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-chains\"\u003eMX Chains\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","brand":"Moose Offroad","offers":[{"title":"Default Title","offer_id":46050015346771,"sku":"1211-251-50-11","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/2487776.png?v=1787876832","url":"https:\/\/motohousemx.com\/products\/moose-offroad-12111588-rear-aluminum-sprocket-yamaha-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}