{"product_id":"shimano-ultegra-fc-r8000-shimano-ultegra-chainwheel-11speed-fc-r8000","title":"SHIMANO ULTEGRA 11-Speed Double Chainwheel - FC-R8000 (Batches produced in 2022 or later)","description":"\u003cdiv class=\"groupset-head-area hide-sm\" data-mce-fragment=\"1\"\u003e\n\n\u003ch1 class=\"heading-01\" data-mce-fragment=\"1\"\u003eSHIMANO ULTEGRA HOLLOWTECH II FRONT CRANKSET 2×12-speed\u003c\/h1\u003e\n\n\u003cdiv class=\"cmp-product-info__modelno-area\" data-mce-fragment=\"1\"\u003e\n\n\u003ch3 class=\"cmp-product-info__modelno\" data-mce-fragment=\"1\"\u003eFC-R8100\u003c\/h3\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cdiv class=\"product-description-area\" data-mce-fragment=\"1\"\u003e\n\n\u003cp data-mce-fragment=\"1\"\u003eThe new ULTEGRA FC-R8100 crankset retains Shimano's long-standing fast, precise front shifting performance and highly efficient power transfer, offering more crank length options. ULTEGRA crank lengths range from 160 to 175 mm, catering to smaller riders, triathletes, and cyclists.\u003c\/p\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion\" data-mce-fragment=\"1\"\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__accordion-section cmp-itemlist-accordion__accordion-section--is-opened\" data-mce-fragment=\"1\"\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__contents\" data-starting-height=\"28\" data-final-height=\"102.375\" data-mce-fragment=\"1\"\u003e\n\n\u003cp class=\"cmp-product-info__long-description\" data-mce-fragment=\"1\"\u003eThe FC-R8100 crankset is part of Shimano's new 12-speed road bike lineup, built upon Shimano's legendary front shifting and drivetrain efficiency. The ULTEGRA crankset is a new refinement for seamless 12-speed shifting, offering crank lengths from 160 to 175 mm, providing performance and a perfect fit for smaller riders, triathletes, and riders with specific biomechanical needs.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch2 class=\"cmp-product-info__title\" data-mce-fragment=\"1\"\u003eFeatures\u003c\/h2\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion\" data-mce-fragment=\"1\"\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__always-visible-section\" data-mce-fragment=\"1\"\u003e\n\n\u003cul data-mce-fragment=\"1\"\u003e\n\n\u003cli class=\"type-benefit\" data-mce-fragment=\"1\"\u003eOptimal balance of stiffness, strength, weight, and rotational performance\u003c\/li\u003e\n\n\u003cli class=\"type-benefit\" data-mce-fragment=\"1\"\u003eHOLLOWGLIDE structure reduces weight while maintaining strength for better power transfer and faster, more precise front shifting performance\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__accordion-section cmp-itemlist-accordion__accordion-section--is-opened\" data-mce-fragment=\"1\"\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__contents\" data-starting-height=\"0\" data-final-height=\"26.875\" data-mce-fragment=\"1\"\u003e\n\n\u003cul data-mce-fragment=\"1\"\u003e\n\n\u003cli class=\"type-benefit\" data-mce-fragment=\"1\"\u003e52-36 and 50-34 chainring options. 160, 165, 170, 172.5, and 175 mm crank arm lengths.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__always-visible-section\" data-mce-fragment=\"1\"\u003e\n\n\u003ch2 class=\"cmp-product-info__title\" data-mce-fragment=\"1\"\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable class=\"cmp-product-spec__table\" data-mce-fragment=\"1\"\u003e\n\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eModel No.\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003eFC-R8100\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eSeries\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003eULTEGRA R8100 Series\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eColor\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003eSeries color\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eAverage weight\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e700 (50-34T) 711 (52-36T)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__accordion-section cmp-itemlist-accordion__accordion-section--is-opened\" data-mce-fragment=\"1\"\u003e\n\n\u003cdiv class=\"cmp-itemlist-accordion__contents\" data-starting-height=\"0\" data-final-height=\"1232\" data-scroll-to-top=\"\" data-mce-fragment=\"1\"\u003e\n\n\u003ctable class=\"cmp-product-spec__table\" data-mce-fragment=\"1\"\u003e\n\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eThreaded BB shell width (mm)_70\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eChainring combination\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e50-34T 52-36T\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCompatible BB type_Outboard\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCrank fixing bolt included\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCrank arm length (mm)_160\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCrank arm length (mm)_165\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\u003c!--nl--\"\u003e\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCrank arm length (mm)_170\u003c\/th\u003e\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCrank arm length (mm)_172.5\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCrank arm length (mm)_175\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCrank arm\/Chainring\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eHOLLOWGLIDE\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eHOLLOWTECH II\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eHOLLOWTECH crank arm\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eOptional chain guard_Without chain\/bash guard\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eRecommended BB_Press-fit\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003eSM-BB72-41B\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eRecommended BB_Threaded (normal)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003eSM-BBR60\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eThreaded BB shell width (mm)_68\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e✔\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eQ-factor (mm)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e148\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eChain Line (mm)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e44.5\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eCompatible chain\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003eHG 12-speed\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eP.C.D. (mm)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e110\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"cmp-product-spec__table-row\" data-mce-fragment=\"1\"\u003e\n\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003eRear speeds\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e12\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-loaded\" id=\"like-post-wrapper-123581651-9656-65541ea811e9d\" data-src=\"https:\/\/widgets.wp.com\/likes\/#blog_id=123581651\u0026amp;post_id=9656\u0026amp;origin=auroratech.com.hk\u0026amp;obj_id=123581651-9656-65541ea811e9d\" data-name=\"like-post-frame-123581651-9656-65541ea811e9d\" data-mce-fragment=\"1\"\u003e\n\n\u003ch3 class=\"sd-title\" data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\n\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"165mm \/ 50X34","offer_id":49414689390891,"sku":"IFCR8000AX04","price":124.0,"currency_code":"GBP","in_stock":false},{"title":"165mm \/ 52x36","offer_id":49414689423659,"sku":"IFCR8000AX26","price":124.0,"currency_code":"GBP","in_stock":false},{"title":"165mm \/ 53X39","offer_id":49414689456427,"sku":"IFCR8000AX39","price":124.0,"currency_code":"GBP","in_stock":false},{"title":"170 mm \/ 50X34","offer_id":49414689489195,"sku":"IFCR8000CX04","price":124.0,"currency_code":"GBP","in_stock":false},{"title":"170 mm \/ 52x36","offer_id":49414689521963,"sku":"IFCR8000CX26","price":124.0,"currency_code":"GBP","in_stock":false},{"title":"170 mm \/ 53X39","offer_id":49414689554731,"sku":"IFCR8000CX39","price":104.0,"currency_code":"GBP","in_stock":false},{"title":"172.5mm \/ 50X34","offer_id":49414689587499,"sku":"IFCR8000DX04","price":104.0,"currency_code":"GBP","in_stock":false},{"title":"172.5mm \/ 52x36","offer_id":49414689620267,"sku":"IFCR8000DX26","price":124.0,"currency_code":"GBP","in_stock":false},{"title":"172.5mm \/ 53X39","offer_id":49414689653035,"sku":"IFCR8000DX39","price":104.0,"currency_code":"GBP","in_stock":false},{"title":"175mm \/ 50X34","offer_id":49414689685803,"sku":"IFCR8000EX04","price":104.0,"currency_code":"GBP","in_stock":false},{"title":"175mm \/ 53X39","offer_id":49414689718571,"sku":"IFCR8000EX39","price":104.0,"currency_code":"GBP","in_stock":false},{"title":"175mm \/ 52x36","offer_id":49414689751339,"sku":"IFCR8000EX26","price":104.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/3934\/7755\/files\/1__62905__64535.jpg?v=1753344455","url":"https:\/\/www.bikecity.hk\/en-gb\/products\/shimano-ultegra-fc-r8000-shimano-ultegra-chainwheel-11speed-fc-r8000","provider":"BikeCity Limited 單車城","version":"1.0","type":"link"}