{"product_id":"renthal-520-51p-rear-grooved-sprocket-model-131u-520-51gbsi-part-number-131u-520-51gbsi","title":"Renthal 520-51P Rear Grooved Sprocket, Model 131U-520-51GBSI, Part Number 131U-520-51GBSI","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 UltraLight Rear Chainwheel is a CNC-machined rear sprocket made from 7075 T6 aluminum. Its lightweight aluminum construction is designed to reduce weight compared with steel while maintaining strength for powersports applications. The sprocket features computer-engineered tooth profiling intended to support precise fitment, concentricity, load dispersion, and efficient power transfer.\u003c\/p\u003e\u003cp\u003eThis silver, 51-tooth, 520-size rear grooved sprocket uses high-strength base material, precision manufacturing methods, and a hardwearing surface treatment. Manufacturer part number: 131U-520-51GBSI. Vendor part number: 131U-520-51GBSI.\u003c\/p\u003e\u003cp\u003eFitment includes 1998 Yamaha WR400F; 1998 Yamaha YZ400F; 1997 and 1998 Yamaha YZ125; 1997, 1998, 1994, 1995, and 1996 Yamaha YZ250; and 1993 Yamaha YZ125. Verify the motorcycle model and year before ordering.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstruction: CNC machined from 7075 T6 aluminum\u003c\/li\u003e\n\u003cli\u003eWeight design: 66% lighter than steel according to the manufacturer\u003c\/li\u003e\n\u003cli\u003eTooth count: 51 teeth\u003c\/li\u003e\n\u003cli\u003eChain size: 520\u003c\/li\u003e\n\u003cli\u003eFinish: Silver\u003c\/li\u003e\n\u003cli\u003eTooth profile: Computer engineered for power transfer, fitment, concentricity, and load dispersion\u003c\/li\u003e\n\u003cli\u003eFitment: 1998 Yamaha WR400F; 1998 Yamaha YZ400F; 1997 and 1998 Yamaha YZ125; 1997, 1998, 1994, 1995, and 1996 Yamaha YZ250; and 1993 Yamaha YZ125\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 131U-520-51GBSI\u003c\/li\u003e\n\u003cli\u003eVendor part number: 131U-520-51GBSI\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: t\u003cbr\u003e\nUnits Per Sku: 1\u003cbr\u003e\nFitment:\u003cbr\u003e\n1993 Yamaha YZ125 Base\u003cbr\u003e\n1994 Yamaha YZ125 Base\u003cbr\u003e\n1994 Yamaha YZ250 Base\u003cbr\u003e\n1995 Yamaha YZ125 Base\u003cbr\u003e\n1995 Yamaha YZ250 Base\u003cbr\u003e\n1996 Yamaha YZ125 Base\u003cbr\u003e\n1996 Yamaha YZ250 Base\u003cbr\u003e\n1997 Yamaha WR250 Base\u003cbr\u003e\n1997 Yamaha YZ125 Base\u003cbr\u003e\n1997 Yamaha YZ250 Base\u003cbr\u003e\n1998 Yamaha WR400F Base\u003cbr\u003e\n1998 Yamaha YZ125 Base\u003cbr\u003e\n1998 Yamaha YZ250 Base\u003cbr\u003e\n1998 Yamaha YZ400F Base","brand":"Renthal","offers":[{"title":"Default Title","offer_id":68304328851691,"sku":"596962","price":99.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/7805a97f0bbb744bb1ab2789ff2d804e_43bcfb32-2610-4c36-a45f-96887674ec71.jpg?v=1793259237","url":"https:\/\/ctracingservices.com\/products\/renthal-520-51p-rear-grooved-sprocket-model-131u-520-51gbsi-part-number-131u-520-51gbsi","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}