{"product_id":"renthal-46-tooth-441u-428-46gpsi-ultralight-rear-chainwheel","title":"Renthal 46-Tooth 441U-428-46GPSI UltraLight Rear Chainwheel","description":"Renthal UltraLight Rear Chainwheels are CNC machined from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer.  A combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see why Renthal's light weight all aluminum rear sprockets can be found on the rear wheels of many factory race team machines.\n\u003cp\u003eThe Renthal 441U-428-46GPSI UltraLight rear chainwheel is a CNC-machined aluminum sprocket designed for powersports applications. It features 7075 T6 aluminum construction and is engineered for precise fitment, concentricity, and load dispersion. Its tooth profiling is designed to support efficient power transfer, while the hardwearing surface treatment helps provide durable performance.\u003c\/p\u003e\u003cp\u003eThis rear sprocket is listed to fit 2005–2008 KTM 85 SX (19\/16) models, 2009–2011 KTM 105 SX models, 2017–2020 Husqvarna TC85 models, and the 2023 GasGas MC85. Verify the vehicle year, model, wheel configuration, and sprocket specifications before installation. The manufacturer part number is 441U-428-46GPSI, and the vendor part number is 441U-428-46GPSI.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Renthal\u003c\/li\u003e\n\u003cli\u003eModel: UltraLight Rear Chainwheel\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 441U-428-46GPSI\u003c\/li\u003e\n\u003cli\u003eVendor part number: 441U-428-46GPSI\u003c\/li\u003e\n\u003cli\u003eConstruction: CNC-machined 7075 T6 aluminum\u003c\/li\u003e\n\u003cli\u003eTooth count: 46 teeth\u003c\/li\u003e\n\u003cli\u003eChain size: 428\u003c\/li\u003e\n\u003cli\u003eFinish: Silver\u003c\/li\u003e\n\u003cli\u003eDesign: Grooved rear sprocket with tooth profiling for power transfer\u003c\/li\u003e\n\u003cli\u003eFitment: 2005–2008 KTM 85 SX (19\/16), 2009–2011 KTM 105 SX, 2017–2020 Husqvarna TC85, and 2023 GasGas MC85\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: false\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Unknown\u003cbr\u003e\nPart Type: powersports\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nCarb Acknowledgement Required: false\u003cbr\u003e\nRegular Stock: false\u003cbr\u003e\nUnits Per Sku: 1\u003cbr\u003e\nFitment:\u003cbr\u003e\n2005 KTM 85 SX (19\/16) Base\u003cbr\u003e\n2006 KTM 85 SX (19\/16) Base\u003cbr\u003e\n2007 KTM 85 SX (19\/16) Base\u003cbr\u003e\n2008 KTM 85 SX (19\/16) Base\u003cbr\u003e\n2009 KTM 105 SX Base\u003cbr\u003e\n2010 KTM 105 SX Base\u003cbr\u003e\n2011 KTM 105 SX Base","brand":"Renthal","offers":[{"title":"Default Title","offer_id":68302812512491,"sku":"596622","price":104.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/7805a97f0bbb744bb1ab2789ff2d804e_586291ad-1761-4d0a-88a0-368fd03d91a6.jpg?v=1793252274","url":"https:\/\/ctracingservices.com\/products\/renthal-46-tooth-441u-428-46gpsi-ultralight-rear-chainwheel","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}