{"product_id":"shimano-ultegra-r8100-50-34-170mm-12-speed-bike-double-chainset","title":"Shimano Ultegra Double Chainset R8100 50\/34 170mm 12 Speed","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\n\u003cul\u003e\n\u003cli\u003eProduct Type: Chainsets\u003c\/li\u003e\n\u003cli\u003eSpeed: 12 Speed\u003c\/li\u003e\n\u003cli\u003eDiscipline: Road, TimeTrial and Triathlon\u003c\/li\u003e\n\u003cli\u003eColour: Grey\u003c\/li\u003e\n\u003cli\u003eRatio: 50\/34T\u003c\/li\u003e\n\u003cli\u003eRatio: 170mm or 172.5mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"170mm","offer_id":56513555595644,"sku":"FCR8100C04","price":174.57,"currency_code":"GBP","in_stock":false},{"title":"172.5mm","offer_id":56513555628412,"sku":"FCR8100D04","price":187.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0385\/4457\/2460\/files\/ultegra-double-chainset-1.jpg?v=1773922883","url":"https:\/\/sdjsports.com\/products\/shimano-ultegra-r8100-50-34-170mm-12-speed-bike-double-chainset","provider":"SDJ Sports","version":"1.0","type":"link"}