{"product_id":"rfx-pro-hcs-rear-sprocket-yz125-250-yzf250-450-99-26","title":"RFX Pro HCS Rear Sprocket YZ125-250 YZF250-450 99-26","description":"\u003cdiv class=\"amd-overview\"\u003e\n\u003cp class=\"amd-overview__lead\"\u003eThe RFX Pro HCS Rear Sprocket YZ125-250 YZF250-450 99-26 from RFX is listed to fit 25 models from Yamaha, Fantic and Honda, including Yamaha TT-R 125 (TT-R125) 2021, Yamaha TT-R 230 (TT-R230) 2005-2006 and Yamaha WR 125 (WR125) 1999-2003. It is part of our rear sprockets range.\u003c\/p\u003e\n\u003cul class=\"amd-overview__facts\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart numbers:\u003c\/strong\u003e one per option, listed under Specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 46 Teeth, 47 Teeth, 48 Teeth, 49 Teeth, 50 Teeth, 51 Teeth, 52 Teeth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Yamaha:\u003c\/strong\u003e \u003ca href=\"\/pages\/yamaha-tt-r125-parts\"\u003eTT-R 125 (TT-R125) 2021\u003c\/a\u003e, \u003ca href=\"\/pages\/yamaha-tt-r230-parts\"\u003eTT-R 230 (TT-R230) 2005-2006\u003c\/a\u003e, \u003ca href=\"\/pages\/yamaha-wr125-parts\"\u003eWR 125 (WR125) 1999-2003\u003c\/a\u003e, \u003ca href=\"\/pages\/yamaha-wr250-parts\"\u003eWR 250 (WR250) 2007-2022\u003c\/a\u003e, \u003ca href=\"\/pages\/yamaha-wr400f-parts\"\u003eWR 400 F (WR400F) 1999-2000\u003c\/a\u003e, \u003ca href=\"\/pages\/yamaha-wr426f-parts\"\u003eWR 426 F (WR426F) 2001-2002\u003c\/a\u003e, \u003ca href=\"\/pages\/yamaha-wr450f-parts\"\u003eWR 450 F (WR450F) 2003-2023\u003c\/a\u003e, \u003ca href=\"\/pages\/yamaha-yz125-parts\"\u003eYZ 125 (YZ125) 1999-2027\u003c\/a\u003e and 5 more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Fantic:\u003c\/strong\u003e \u003ca href=\"\/pages\/fantic-xe125-parts\"\u003eXE 125 (XE125) 2021-2026\u003c\/a\u003e, \u003ca href=\"\/pages\/fantic-xe300-parts\"\u003eXE 300 (XE300) 2024-2025\u003c\/a\u003e, \u003ca href=\"\/pages\/fantic-xef250-parts\"\u003eXEF 250 (XEF250) 2022-2026\u003c\/a\u003e, \u003ca href=\"\/pages\/fantic-xef310-parts\"\u003eXEF 310 (XEF310) 2024-2025\u003c\/a\u003e, \u003ca href=\"\/pages\/fantic-xef450-parts\"\u003eXEF 450 (XEF450) 2022-2026\u003c\/a\u003e, \u003ca href=\"\/pages\/fantic-xx125-parts\"\u003eXX 125 (XX125) 2021-2026\u003c\/a\u003e, \u003ca href=\"\/pages\/fantic-xx250-parts\"\u003eXX 250 (XX250) 2022-2026\u003c\/a\u003e, \u003ca href=\"\/pages\/fantic-xxf250-parts\"\u003eXXF 250 (XXF250) 2022-2026\u003c\/a\u003e and 1 more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Honda:\u003c\/strong\u003e \u003ca href=\"\/pages\/honda-fx650-parts\"\u003eFX 650 (FX650) 2000\u003c\/a\u003e, \u003ca href=\"\/pages\/honda-nx650dominator-parts\"\u003eNX 650 DOMINATOR 1988-1994\u003c\/a\u003e, \u003ca href=\"\/pages\/honda-slr650-parts\"\u003eSLR 650 (SLR650) 1997-1998\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Vehicle Parts › Drivechain › Rear Sprockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eRFX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer part numbers\u003c\/th\u003e\n\u003ctd\u003eFXRS 31-46 99ST, FXRS 31-47 99ST, FXRS 31-48 99ST, FXRS 31-49 99ST, FXRS 31-50 99ST, FXRS 31-51 99ST, FXRS 31-52 99ST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eFits these bikes\u003c\/h2\u003e\u003cp\u003eThis RFX part is listed as fitting 25 models. Check your model and year below.\u003c\/p\u003e\u003ctable class=\"fitment-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xe125-parts\"\u003eXE 125 (XE125)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2021-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xe300-parts\"\u003eXE 300 (XE300)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2024-2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xef250-parts\"\u003eXEF 250 (XEF250)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xef310-parts\"\u003eXEF 310 (XEF310)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2024-2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xef450-parts\"\u003eXEF 450 (XEF450)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xx125-parts\"\u003eXX 125 (XX125)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2021-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xx250-parts\"\u003eXX 250 (XX250)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xxf250-parts\"\u003eXXF 250 (XXF250)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFantic\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/fantic-xxf450-parts\"\u003eXXF 450 (XXF450)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/honda-fx650-parts\"\u003eFX 650 (FX650)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/honda-nx650dominator-parts\"\u003eNX 650 DOMINATOR\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1988-1994\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/honda-slr650-parts\"\u003eSLR 650 (SLR650)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1997-1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-tt-r125-parts\"\u003eTT-R 125 (TT-R125)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-tt-r230-parts\"\u003eTT-R 230 (TT-R230)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2005-2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-wr125-parts\"\u003eWR 125 (WR125)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1999-2003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-wr250-parts\"\u003eWR 250 (WR250)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2007-2022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-wr400f-parts\"\u003eWR 400 F (WR400F)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1999-2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-wr426f-parts\"\u003eWR 426 F (WR426F)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2001-2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-wr450f-parts\"\u003eWR 450 F (WR450F)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2003-2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-yz125-parts\"\u003eYZ 125 (YZ125)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1999-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-yz250-parts\"\u003eYZ 250 (YZ250)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1999-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-yz250f-parts\"\u003eYZ 250 F (YZ250F)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2001-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-yz400f-parts\"\u003eYZ 400 F (YZ400F)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1999\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-yz426f-parts\"\u003eYZ 426 F (YZ426F)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2000-2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/yamaha-yz450f-parts\"\u003eYZ 450 F (YZ450F)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2003-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eProduct details\u003c\/h2\u003e\n\u003cp\u003eBuilt from certified Hi-Carbon Steel (HCS), RFX Pro Series rear sprockets combine long life, strong performance and good value. They offer greater wear resistance and extra strength compared with mild steel versions.\u003c\/p\u003e\u003cp\u003eBecause the steel is stronger, the profile can be made lighter, narrowing the weight difference to aluminium sprockets while keeping the durability. Every sprocket is precision laser-cut to tighter tolerances for an accurate fit and reliable performance on every ride.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMade from certified Hi-Carbon Steel\u003c\/li\u003e\n\u003cli\u003ePrecision CNC laser cutting\u003c\/li\u003e\n\u003cli\u003eProfile designed in CAD to save weight\u003c\/li\u003e\n\u003cli\u003eMud clearing grooves that help reduce wear\u003c\/li\u003e\n\u003cli\u003eRigid design adds torsional strength\u003c\/li\u003e\n\u003cli\u003eTighter tolerances for improved performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitting\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStart with the bike on a stand and the rear wheel raised.\u003c\/li\u003e\n\u003cli\u003eTake off the chain and remove the wheel.\u003c\/li\u003e\n\u003cli\u003eHold the hex key still while a spanner loosens the nuts.\u003c\/li\u003e\n\u003cli\u003eTake out every nut and the old sprocket.\u003c\/li\u003e\n\u003cli\u003eClean the hub so it is free of dirt and debris.\u003c\/li\u003e\n\u003cli\u003eFit the new sprocket onto the hub so it sits snugly with the bolt holes lined up.\u003c\/li\u003e\n\u003cli\u003eClean the sprocket bolts and nuts.\u003c\/li\u003e\n\u003cli\u003ePut blue Loctite on each bolt and push them through the holes.\u003c\/li\u003e\n\u003cli\u003eRun the nuts onto the bolts by hand, checking that the locking seals are undamaged and in good order.\u003c\/li\u003e\n\u003cli\u003eHold the hex key in place and tighten the nuts in an even pattern.\u003c\/li\u003e\n\u003cli\u003eTorque the nuts and bolts to the figures in your owner's manual.\u003c\/li\u003e\n\u003cli\u003eRefit the wheel, making sure the chain is correctly aligned and adjusted to the manufacturer's specification.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RFX","offers":[{"title":"46 Teeth \/ Steel","offer_id":58910987059464,"sku":"110664-STE-46","price":29.99,"currency_code":"GBP","in_stock":true},{"title":"47 Teeth \/ Steel","offer_id":58910987092232,"sku":"110664-STE-47","price":29.99,"currency_code":"GBP","in_stock":true},{"title":"48 Teeth \/ Steel","offer_id":58910987125000,"sku":"110664-STE-48","price":29.99,"currency_code":"GBP","in_stock":true},{"title":"49 Teeth \/ Steel","offer_id":58910987157768,"sku":"110664-STE-49","price":29.99,"currency_code":"GBP","in_stock":false},{"title":"50 Teeth \/ Steel","offer_id":58910987190536,"sku":"110664-STE-50","price":29.99,"currency_code":"GBP","in_stock":false},{"title":"51 Teeth \/ Steel","offer_id":58910987223304,"sku":"110664-STE-51","price":29.99,"currency_code":"GBP","in_stock":false},{"title":"52 Teeth \/ Steel","offer_id":58910987256072,"sku":"110664-STE-52","price":29.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1049\/4201\/0632\/files\/rfx-pro-hcs-rear-sprocket-yz125-250-yzf250-450-99-26.png?v=1790729354","url":"https:\/\/apexpowersports.co.uk\/products\/rfx-pro-hcs-rear-sprocket-yz125-250-yzf250-450-99-26","provider":"Apex Powersports","version":"1.0","type":"link"}