{"product_id":"rfx-pro-armalite-rear-sprocket-beta-rr-250-450-13-26","title":"RFX Pro Armalite Rear Sprocket Beta RR 250-450 13-26","description":"\u003cdiv class=\"amd-overview\"\u003e\n\u003cp class=\"amd-overview__lead\"\u003eThe RFX Pro Armalite Rear Sprocket Beta RR 250-450 13-26 from RFX is listed to fit 20 models, including Beta RR 125 2T 2020-2022, 2024-2026, Beta RR 125 2T ENDURO 2018-2019 and Beta RR 125 4T ENDURO 2018-2021. 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 49 Teeth, 50 Teeth, 51 Teeth, 52 Teeth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black, Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Beta:\u003c\/strong\u003e \u003ca href=\"\/pages\/beta-rr1252t-parts\"\u003eRR 125 2T 2020-2022, 2024-2026\u003c\/a\u003e, \u003ca href=\"\/pages\/beta-rr1252tenduro-parts\"\u003eRR 125 2T ENDURO 2018-2019\u003c\/a\u003e, \u003ca href=\"\/pages\/beta-rr1254tenduro-parts\"\u003eRR 125 4T ENDURO 2018-2021\u003c\/a\u003e, \u003ca href=\"\/pages\/beta-rr2002t-parts\"\u003eRR 200 2T 2020-2022, 2024, 2026\u003c\/a\u003e, \u003ca href=\"\/pages\/beta-rr2002tenduro-parts\"\u003eRR 200 2T ENDURO 2019\u003c\/a\u003e, \u003ca href=\"\/pages\/beta-rr2502t-parts\"\u003eRR 250 2T 2019-2022, 2024-2026\u003c\/a\u003e, \u003ca href=\"\/pages\/beta-rr2502tenduro-parts\"\u003eRR 250 2T ENDURO 2013-2019\u003c\/a\u003e, \u003ca href=\"\/pages\/beta-rr3002t-parts\"\u003eRR 300 2T 2020-2026\u003c\/a\u003e and 12 more\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 61-49 ALBK, FXRS 61-50 ALBK, FXRS 61-51 ALBK, FXRS 61-52 ALBK, FXRS 61-49 ALRD, FXRS 61-50 ALRD, FXRS 61-51 ALRD\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 20 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\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr1252t-parts\"\u003eRR 125 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2020-2022, 2024-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr1252tenduro-parts\"\u003eRR 125 2T ENDURO\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2018-2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr1254tenduro-parts\"\u003eRR 125 4T ENDURO\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2018-2021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr2002t-parts\"\u003eRR 200 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2020-2022, 2024, 2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr2002tenduro-parts\"\u003eRR 200 2T ENDURO\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr2502t-parts\"\u003eRR 250 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2019-2022, 2024-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr2502tenduro-parts\"\u003eRR 250 2T ENDURO\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2013-2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr3002t-parts\"\u003eRR 300 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr3002tenduro-parts\"\u003eRR 300 2T ENDURO\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2013-2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr3504t-parts\"\u003eRR 350 4T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2020-2022, 2024-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr3904t-parts\"\u003eRR 390 4T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr3904tenduro-parts\"\u003eRR 390 4T ENDURO\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2015-2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr4304t-parts\"\u003eRR 430 4T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rr4804t-parts\"\u003eRR 480 4T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2020-2022, 2024-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rx2502t-parts\"\u003eRX 250 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2026-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rx3002t-parts\"\u003eRX 300 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rx3502t-parts\"\u003eRX 350 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2026-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-rx4504t-parts\"\u003eRX 450 4T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2024-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-xtrainer2502t-parts\"\u003eXTRAINER 250 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2018-2022, 2024-2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeta\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/pages\/beta-xtrainer3002t-parts\"\u003eXTRAINER 300 2T\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e2015, 2020-2022, 2024-2027\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eProduct details\u003c\/h2\u003e\n\u003cp\u003eRFX Pro Series Armalite rear sprockets have been developed and put through their paces by leading World and British championship race teams.\u003c\/p\u003e\u003cp\u003eEach sprocket uses a two-ring construction. The centre is a 7075-T6 aluminium ring to keep weight down, while the outer ring carrying the teeth is high carbon steel for a long wear life. The two rings lock together through a hexagon drive interface, an innovative approach for sprockets that makes the most of the drive transferred between the parts and takes the load off the rivets completely, bringing the force on them down to zero.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInner ring CNC machined from 7075 aerospace aluminium\u003c\/li\u003e\n\u003cli\u003eHigh carbon steel (HCS) outer ring\u003c\/li\u003e\n\u003cli\u003eHex-Drive location between the inner and outer rings\u003c\/li\u003e\n\u003cli\u003eCAD designed profile to save weight\u003c\/li\u003e\n\u003cli\u003eRedesigned mud clearing grooves to reduce wear\u003c\/li\u003e\n\u003cli\u003eRigid construction for greater torsional strength\u003c\/li\u003e\n\u003cli\u003eColour anodised for a factory bike look\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitting instructions\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePut the bike on a stand so the rear wheel is off the ground.\u003c\/li\u003e\n\u003cli\u003eTake off the chain and remove the wheel.\u003c\/li\u003e\n\u003cli\u003eHold the hex key in place and undo the nuts with a spanner.\u003c\/li\u003e\n\u003cli\u003eRemove all of the nuts and the old sprocket.\u003c\/li\u003e\n\u003cli\u003eClean the hub area thoroughly so it is free of dirt and debris.\u003c\/li\u003e\n\u003cli\u003eOffer the new sprocket up to the hub, checking 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 the locking seals are intact and in good order.\u003c\/li\u003e\n\u003cli\u003eKeep the hex key held 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, then align the chain correctly and adjust its tension to the manufacturer's specification.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RFX","offers":[{"title":"49 Teeth \/ Black","offer_id":58910975852808,"sku":"110682-BLK-49","price":52.99,"currency_code":"GBP","in_stock":true},{"title":"50 Teeth \/ Black","offer_id":58910975885576,"sku":"110682-BLK-50","price":52.99,"currency_code":"GBP","in_stock":true},{"title":"51 Teeth \/ Black","offer_id":58910975918344,"sku":"110682-BLK-51","price":52.99,"currency_code":"GBP","in_stock":true},{"title":"52 Teeth \/ Black","offer_id":58910975951112,"sku":"110682-BLK-52","price":52.99,"currency_code":"GBP","in_stock":true},{"title":"49 Teeth \/ Red","offer_id":58910975983880,"sku":"110682-RED-49","price":52.99,"currency_code":"GBP","in_stock":true},{"title":"50 Teeth \/ Red","offer_id":58910976016648,"sku":"110682-RED-50","price":52.99,"currency_code":"GBP","in_stock":true},{"title":"51 Teeth \/ Red","offer_id":58910976049416,"sku":"110682-RED-51","price":52.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1049\/4201\/0632\/files\/rfx-pro-armalite-rear-sprocket-beta-rr-250-450-13-26.png?v=1790729224","url":"https:\/\/apexpowersports.co.uk\/products\/rfx-pro-armalite-rear-sprocket-beta-rr-250-450-13-26","provider":"Apex Powersports","version":"1.0","type":"link"}