{"product_id":"renthal-150052050gpbu-twinring-rear-sprocket-yamaha-honda-moto-house-mx","title":"Renthal Twinring Rear Sprocket (50T) 1500-520-50GPBU - Honda \/ Yamaha XR250R \/ YZ125 \/ YZ250 \/ YZ450F \/ WR450F 1988-2026","description":"\u003ch1\u003e\u003cstrong\u003eRenthal Twinring Rear Sprocket (50T) 1500-520-50GPBU - Honda \/ Yamaha XR250R \/ YZ125 \/ YZ250 \/ YZ450F \/ WR450F 1988-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eRenthal Twinring Rear Sprocket\u003c\/strong\u003e is engineered to deliver the ultimate combination of light weight and exceptional longevity for serious off-road and motocross riders. Designed specifically to handle punishing track and trail conditions, this 50-tooth blue sprocket outperforms standard aluminum options while maintaining a highly competitive weight advantage.\u003c\/p\u003e\n\u003cp\u003eUtilizing an innovative dual-material construction, the inner ring features high-strength Ultralight 7075 T-6 aluminum, while the outer ring utilizes an electro-less nickel coated steel design[cite: 1]. The outer ring is expanded at 200°C and fitted over the inner ring, creating a permanent interference fit that, combined with a specialized wave pattern and flat socket head screws, ensures ultimate structural integrity during severe side impacts[cite: 1].\u003c\/p\u003e\n\u003ch3\u003eTop Features: Renthal Twinring Rear Sprocket\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInner ring constructed from high-strength Ultralight 7075 T-6 aluminum identical to standard Renthal sprockets[cite: 1].\u003c\/li\u003e\n\u003cli\u003eOuter ring features electro-less nickel coated steel optimized with minimal material to reduce weight and maximize durability[cite: 1].\u003c\/li\u003e\n\u003cli\u003ePrecision thermal expansion fit at 200°C combined with flat socket head screws secures a permanent bond and eliminates chain guide interference[cite: 1].\u003c\/li\u003e\n\u003cli\u003eIntegrated self-cleaning mud grooves between each tooth prevent dirt build-up to minimize wear and maintain lower rotating weight[cite: 1].\u003c\/li\u003e\n\u003cli\u003eEngineered to outlast standard all-aluminum sprockets by up to three times while remaining much lighter than a solid steel alternative[cite: 1].\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\u003e1988-1989\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eXR250R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ400F\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\u003e1999-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR 426 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\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\u003e2001-2009, 2011-2013, 2015-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2009, 2011-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2022, 2025-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2019, 2021-2022, 2025-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2021, 2024-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022, 2025-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ125X\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: How does the Twinring achieve a permanent bond between the inner and outer rings?\u003c\/b\u003e\u003cbr\u003eA: The steel outer ring is expanded at 200°C and tightly fitted over the aluminum inner core, creating an interlocking interference fit secured further by flat socket head screws and a distinct wave pattern[cite: 1].\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Do the self-cleaning mud grooves actually help with chain and sprocket longevity?\u003c\/b\u003e\u003cbr\u003eA: Yes, the grooves between each tooth actively clear out dirt and mud with every rotation, preventing abrasive buildup that accelerates chainwheel and chain wear[cite: 1].\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When replacing your rear sprocket, always inspect your drive chain and front sprocket for matching wear patterns. Installing a new dual-compound sprocket like the Twinring on a heavily worn, stretched chain can drastically reduce its lifespan. Clean and torque your sprocket bolts to factory specifications using a thread-locking compound during installation.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\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\/yamaha-yz250-and-yz250x-performance-parts-collection-at-moto-house-mx\"\u003eYamaha YZ250 \u0026amp; YZ250X 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\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":42622532616275,"sku":"1500-520-50GPBU","price":137.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/renthal-twinring-sprocket-blue-50t-part-number-1500-520-50gpbu-502443.jpg?v=1744692013","url":"https:\/\/motohousemx.com\/products\/renthal-150052050gpbu-twinring-rear-sprocket-yamaha-honda-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}