{"product_id":"renthal-154u52045grsi-ultralight-rear-sprocket-honda-moto-house-mx","title":"Renthal Ultralight Rear Sprocket (Aluminum) 154U-520-45GRSI - Honda 1984-2026","description":"\u003ch1\u003e\u003cstrong\u003eRenthal Ultralight Rear Sprocket (45T, Silver) 154U52045GRSI - Honda CR \/ CRF \/ XR 1984-2026\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eUpgrade your drivetrain with the \u003cstrong\u003eRenthal Ultralight Rear Sprocket\u003c\/strong\u003e, engineered for riders seeking maximum power transfer and reduced unsprung weight. Precision-crafted to fit a wide range of Honda off-road and motocross motorcycles, this 45-tooth silver sprocket delivers competition-proven performance.\u003c\/p\u003e\n\u003cp\u003eManufactured using advanced CNC-machining techniques from high-strength 7075-T6 aluminum, this sprocket provides exceptional durability while remaining significantly lighter than steel alternatives. The computer-aided design and specialized tooth profile optimize chain engagement for smoother operation, reduced noise, and increased overall efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Renthal Ultralight Rear Sprocket\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCNC-machined construction utilizing computer-aided ultra-light design principles to minimize unsprung weight and maximize power transfer.\u003c\/li\u003e\n\u003cli\u003eForged from high-strength, specially enhanced 7075-T6 aluminum that is 33% lighter than steel without sacrificing structural integrity.\u003c\/li\u003e\n\u003cli\u003eSpecialized tooth profile allows the chain to roll easily on and off the sprocket for extended wear life and reduced operating noise.\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for 520 chain drive systems in a striking silver finish.\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered fitment tailored for Honda off-road 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\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\u003e2025-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF250RWE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF300F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450RL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF250RX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450RWE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450RX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450RX (2017-2018, 2019-2026)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2009, 2012-2017, 2019-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF250R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2026\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2009, 2012-2017\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF150F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2009, 2012-2017\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF230F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2016\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF250X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRF450L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2007\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eXR650R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1987-2007\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCR125R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1984-2007\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCR250R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996-2004\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eXR400R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996-2005\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eXR250R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1986-2001\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCR500R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Is this sprocket lighter than a stock steel sprocket?\u003c\/b\u003e\u003cbr\u003eA: Yes, it is manufactured from 7075-T6 aluminum, making it 33% lighter than steel to significantly reduce unsprung weight[cite: 1].\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What chain size does this rear sprocket require?\u003c\/b\u003e\u003cbr\u003eA: This sprocket is designed specifically for use with a 520 chain size[cite: 1].\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When replacing your rear sprocket, always inspect your drive chain and front sprocket for wear. Installing a new aluminum sprocket on a heavily worn chain will drastically accelerate wear and reduce the lifespan of the components.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/honda-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eHonda 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\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\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":"RENTHAL","offers":[{"title":"Default Title","offer_id":42622540841043,"sku":"154U-520-45GRSI","price":94.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/renthal-rear-ultralight-sprocket-silver-grooved-45t-part-number-154u-520-45grsi-542947.jpg?v=1744691961","url":"https:\/\/motohousemx.com\/products\/renthal-154u52045grsi-ultralight-rear-sprocket-honda-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}