{"product_id":"shimano-ultegra-fc-r8000-shimano-ultegra-chainwheel-11speed-fc-r8000","title":"SHIMANO ULTEGRA CHAINWHEEL-11SPEED-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\"\u003e SHIMANO ULTEGRA HOLLOWTECH II front chainring 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\"\u003e FC-R8100 \u003c\/h3\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-description-area\" data-mce-fragment=\"1\"\u003e\n\n \u003cp data-mce-fragment=\"1\"\u003eULTEGRA's new FC-R8100 crank retains Shimano's long-standing fast and precise front shifting performance and high-efficiency power transmission, and provides more crank length options. ULTEGRA crank lengths range from 160 to 175 mm to accommodate 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\"\u003e The FC-R8100 crank is part of Shimano's new 12-speed road bike product line, built on Shimano's legendary front shifting and transmission efficiency. ULTEGRA cranks are the next evolution in seamless 12-speed shifting and are available in 160 to 175 mm crank lengths to provide performance and optimal fit for smaller riders, triathletes and riders with specific biomechanical needs. Fit. \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\"\u003e feature \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\"\u003e Best balance of rigidity, strength, weight and rotational performance\u003c\/li\u003e\n\n\u003cli class=\"type-benefit\" data-mce-fragment=\"1\"\u003e HOLLOWGLIDE construction reduces weight while maintaining strength for better power transfer and faster and 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\"\u003e 52-36 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\"\u003e product 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\"\u003e model\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e FC-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\"\u003e series\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e ULTEGRA 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\"\u003e color\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e series 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\"\u003e average weight\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e 700 (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\"\u003eTeeth pattern bottom bracket 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\"\u003e Chainring combination\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e 50-34T 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\"\u003e Compatible bottom bracket types_Push outward\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\"\u003e Includes crank fixing screws\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\"\u003e Chain crank 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\"\u003e Chain crank 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\n\u003cth class=\"cmp-product-spec__name\" data-mce-fragment=\"1\"\u003e Chain crank length (mm)_170\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\"\u003e Chain crank 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\"\u003e Chain crank 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\"\u003e Crank arm\/gear crank\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e 4 \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\"\u003e HOLLOWGLIDE\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\"\u003e HOLLOWTECH 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\"\u003e HOLLOWTECH chainring crank\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\"\u003e Selected chain protector_without chain protector\/impact protection cover\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\"\u003e Recommended bottom bracket headset_press-fit type\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e SM-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\"\u003e Recommended bottom bracket headset_teeth pattern (standard type)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e SM-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\"\u003e Teeth pattern bottom bracket 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\"\u003e Q-factor (mm)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e 148 \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\"\u003e Chain Line (mm)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e 44.5 \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\"\u003e Compatible chain\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e HG 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\"\u003e PCD(mm)\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e 110 \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\"\u003e Rear derailleur\u003c\/th\u003e\n\n\u003ctd class=\"cmp-product-spec__value\" data-mce-fragment=\"1\"\u003e 12 \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\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","brand":"Shimano","offers":[{"title":"165mm \/ 50X34","offer_id":43858979356842,"sku":"IFCR8000AX04","price":1280.0,"currency_code":"HKD","in_stock":false},{"title":"165mm \/ 52X36","offer_id":43858979389610,"sku":"IFCR8000AX26","price":1280.0,"currency_code":"HKD","in_stock":false},{"title":"165mm \/ 53X39","offer_id":43858979422378,"sku":"IFCR8000AX39","price":1280.0,"currency_code":"HKD","in_stock":false},{"title":"170mm \/ 50X34","offer_id":43858979455146,"sku":"IFCR8000CX04","price":1280.0,"currency_code":"HKD","in_stock":false},{"title":"170mm \/ 52X36","offer_id":43858979487914,"sku":"IFCR8000CX26","price":1280.0,"currency_code":"HKD","in_stock":false},{"title":"170mm \/ 53X39","offer_id":43858979520682,"sku":"IFCR8000CX39","price":1080.0,"currency_code":"HKD","in_stock":true},{"title":"172.5mm \/ 50X34","offer_id":43858979553450,"sku":"IFCR8000DX04","price":1080.0,"currency_code":"HKD","in_stock":true},{"title":"172.5mm \/ 52X36","offer_id":43858979586218,"sku":"IFCR8000DX26","price":1280.0,"currency_code":"HKD","in_stock":false},{"title":"172.5mm \/ 53X39","offer_id":43858979618986,"sku":"IFCR8000DX39","price":1080.0,"currency_code":"HKD","in_stock":true},{"title":"175mm \/ 50X34","offer_id":43858979651754,"sku":"IFCR8000EX04","price":1080.0,"currency_code":"HKD","in_stock":true},{"title":"175mm \/ 53X39","offer_id":43858979717290,"sku":"IFCR8000EX39","price":1080.0,"currency_code":"HKD","in_stock":true},{"title":"175mm \/ 52X36","offer_id":43858979684522,"sku":"IFCR8000EX26","price":1080.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0570\/0383\/5562\/files\/1__62905__64535.jpg?v=1767934827","url":"https:\/\/bicycleshophk.mom\/en\/products\/shimano-ultegra-fc-r8000-shimano-ultegra-chainwheel-11speed-fc-r8000","provider":"THE BICYCLE SHOP （H.K.) ","version":"1.0","type":"link"}