{"product_id":"shimano-parts-ultegra-fc-r8100-52-36t-12-speed-175mm-double-chainset-black","title":"Shimano Parts Ultegra FC-R8100 52-36T 12 Speed 175mm Double Chainset - Black","description":"\u003cp\u003eThe HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it suitable for both enthusiast and competitive riders.\u003c\/p\u003e\n\u003cp\u003eThe HollowGlide hollow outer chainring delivers significant improvements in rigidity by virtually eliminating outer chainring flex, resulting in greatly enhanced shifting performance even under high load.\u003c\/p\u003e\n\u003cp\u003eChainring teeth have been developed to work in conjunction with 12-speed HG chains, increasing contact for greater efficiency and improved power transfer.\u003c\/p\u003e\n\u003cp\u003eIndustry-leading HollowTech II cold forged 4-arm hollow crank design has been evolved to maximise rigidity while reducing overall weight.\u003c\/p\u003e\n\u003cp\u003eWide gear pitch spacing increases clearance between the chain and leading teeth, providing compatibility with frames using O.L.D. 135 \/ 142 mm.\u003c\/p\u003e\n\u003cp\u003eA wide range of chainring options and crank arm lengths are available to meet the needs of different riders and racing disciplines.\u003c\/p\u003e\n\u003cp\u003eThe HollowTech II integrated bottom bracket uses wider bearing placement and a larger axle diameter to increase stiffness and pedalling efficiency.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSpeed: 12-speed\u003c\/li\u003e\n\u003cli\u003eChainset Type: Ultegra HollowTech II\u003c\/li\u003e\n\u003cli\u003eChainring Technology: HollowGlide hollow outer chainring\u003c\/li\u003e\n\u003cli\u003eCrank Construction: Cold forged 4-arm hollow crank\u003c\/li\u003e\n\u003cli\u003eChain Compatibility: 12-speed HG chains\u003c\/li\u003e\n\u003cli\u003eFrame Compatibility: O.L.D. 135 \/ 142 mm\u003c\/li\u003e\n\u003cli\u003eBottom Bracket Type: HollowTech II integrated bottom bracket\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"Grade A","offer_id":53508480532818,"sku":"Hal\/FC-R8100#A","price":285.89,"currency_code":"GBP","in_stock":false},{"title":"Grade B+","offer_id":53508480565586,"sku":"Hal\/FC-R8100#B","price":270.79,"currency_code":"GBP","in_stock":false},{"title":"Grade C+","offer_id":53508480598354,"sku":"Hal\/FC-R8100#C","price":240.59,"currency_code":"GBP","in_stock":false},{"title":"Grade D+","offer_id":53508480631122,"sku":"Hal\/FC-R8100#D","price":210.29,"currency_code":"GBP","in_stock":false},{"title":"NEW","offer_id":53508480663890,"sku":"Hal\/FC-R8100#NEW","price":221.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/8844\/7058\/files\/B09HKGRD87_2020052026_20a.jpg?v=1779280689","url":"https:\/\/www.tlx.co.uk\/products\/shimano-parts-ultegra-fc-r8100-52-36t-12-speed-175mm-double-chainset-black","provider":"TLX","version":"1.0","type":"link"}