{"product_id":"shimano-ultegra-fc-r8100-12-speed-front-crankset","title":"Shimano Ultegra FC-R8100 12-Speed Front Crankset","description":"\u003ch1\u003e\u003cstrong\u003eShimano Ultegra FC-R8100 12 Speed Crankset\u003c\/strong\u003e\u003c\/h1\u003e \n \n\u003cp\u003eULTEGRA's new FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, ULTEGRA cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms.\u003c\/p\u003e \n \n\u003cp\u003eAn integral part of Shimano's new 12-speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the ULTEGRA crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements.\u003c\/p\u003e \n \n\u003ch2\u003eFEATURES\u003c\/h2\u003e \n \n\u003cul\u003e \n \u003cli\u003eOptimal balance of stiffness, strength, weight and rotational performance\u003c\/li\u003e \n \u003cli\u003eHOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting\u003c\/li\u003e \n \u003cli\u003e52-36 and 50-34 chainring options. 160, 165, 170, 172.5, and 175 mm crank arm lengths.\u003c\/li\u003e \n\u003c\/ul\u003e \n \n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e \n \n\u003ctable\u003e \n \u003ctbody\u003e \n  \u003ctr\u003e \n   \u003cth\u003eMODEL NO\u003c\/th\u003e \n   \u003ctd\u003eFC-R8100\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eSERIES\u003c\/th\u003e \n   \u003ctd\u003eULTEGRA R8100 Series\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eColor\u003c\/th\u003e \n   \u003ctd\u003eSeries color\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eAverage weight\u003c\/th\u003e \n   \u003ctd\u003e700 (50-34T) 711 (52-36T)\u003c\/td\u003e \n  \u003c\/tr\u003e \n \u003c\/tbody\u003e \n\u003c\/table\u003e \n \n\u003ctable\u003e \n \u003ctbody\u003e \n  \u003ctr\u003e \n   \u003cth\u003eThreaded bottom bracket shell width (mm)_70\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eChainring combination\u003c\/th\u003e \n   \u003ctd\u003e50-34T 52-36T\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCompatible bottom bracket type_Outboard\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCrank fixing screw included\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCrank arm length (mm)_160\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCrank arm length (mm)_165\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCrank arm length (mm)_170\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCrank arm length (mm)_172.5\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCrank arm length (mm)_175\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eSpider\/Gear arms\u003c\/th\u003e \n   \u003ctd\u003e4\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eHOLLOWGLIDE\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eHOLLOWTECH II\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eHOLLOWTECH crank arm\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eOptional chain guard_Without chain\/bash guard\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eRecommended bottom bracket_Press-fit\u003c\/th\u003e \n   \u003ctd\u003eSM-BB72-41B\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eRecommended bottom bracket_Threaded (normal)\u003c\/th\u003e \n   \u003ctd\u003eSM-BBR60\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eThreaded bottom bracket shell width (mm)_68\u003c\/th\u003e \n   \u003ctd\u003e✔\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eQ-factor (mm)\u003c\/th\u003e \n   \u003ctd\u003e148\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eChain line (mm)\u003c\/th\u003e \n   \u003ctd\u003e44.5\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eCompatible chain\u003c\/th\u003e \n   \u003ctd\u003eHG 12-speed\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eP.C.D. (mm)\u003c\/th\u003e \n   \u003ctd\u003e110\u003c\/td\u003e \n  \u003c\/tr\u003e \n  \u003ctr\u003e \n   \u003cth\u003eRear speeds\u003c\/th\u003e \n   \u003ctd\u003e12\u003c\/td\u003e \n  \u003c\/tr\u003e \n \u003c\/tbody\u003e \n\u003c\/table\u003e \n \n\u003cp\u003e \u003c\/p\u003e","brand":"Shimano","offers":[{"title":"50-34T (165mm)","offer_id":44168178565162,"sku":"IFCR8100AX04","price":469.99,"currency_code":"AUD","in_stock":false},{"title":"52-36T (165mm)","offer_id":44168178597930,"sku":"IFCR8100AX26_","price":379.99,"currency_code":"AUD","in_stock":false},{"title":"50-34T (170mm)","offer_id":44168178630698,"sku":"IFCR8100CX04","price":399.99,"currency_code":"AUD","in_stock":false},{"title":"52-36T (170mm)","offer_id":44168178663466,"sku":"IFCR8100CX26","price":469.99,"currency_code":"AUD","in_stock":false},{"title":"50-34T (172.5mm)","offer_id":44168178696234,"sku":"IFCR8100DX04","price":299.0,"currency_code":"AUD","in_stock":false},{"title":"52-36T (172.5mm)","offer_id":44168178729002,"sku":"IFCR8100DX26","price":469.99,"currency_code":"AUD","in_stock":false},{"title":"50-34T (175mm)","offer_id":44168178761770,"sku":"IFCR8100EX04","price":299.0,"currency_code":"AUD","in_stock":false},{"title":"50-34 (160mm)","offer_id":44168178794538,"sku":"IFCR8100MX04","price":469.99,"currency_code":"AUD","in_stock":false},{"title":"52-36T (160mm)","offer_id":44168178827306,"sku":"IFCR8100MX26","price":469.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0651\/8711\/9146\/files\/IFCR8100_8beb5e1b-7d83-4050-bbf9-b08d7a732152.jpg?v=1773628815","url":"https:\/\/cyclesy.cc\/products\/shimano-ultegra-fc-r8100-12-speed-front-crankset","provider":"Cyclesy","version":"1.0","type":"link"}