{"product_id":"c-set-ultegra-r8100-52-36-172-5mm","title":"FC-R8100 Ultegra 12-speed double chainset, 52 \/ 36T 172.5 mm","description":"\u003cul\u003e\n\u003cli\u003eThe HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders\u003c\/li\u003e\n\u003cli\u003eHollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load\u003c\/li\u003e\n\u003cli\u003eThe chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer\u003c\/li\u003e\n\u003cli\u003eIndustry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight\u003c\/li\u003e\n\u003cli\u003eWide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 \/ 142 mm\u003c\/li\u003e\n\u003cli\u003eA wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines\u003c\/li\u003e\n\u003cli\u003eHollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency\u003c\/li\u003e\n\u003cli\u003eHollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bike Clinique","offers":[{"title":"52 \/ 36 teeth \/ Grey \/ Grey","offer_id":48615584661812,"sku":"FCR8100D26","price":299.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/8116\/3060\/files\/fc-r8100-ultegra-12-speed-double-chainset-52-36t-1725-mm-8194727.jpg?v=1763803029","url":"https:\/\/bikeclinique.com\/products\/c-set-ultegra-r8100-52-36-172-5mm","provider":"Bike Clinique","version":"1.0","type":"link"}