{"product_id":"shimano-ultegra-fc-r8100-p-ultegra-12-speed-double-power-meter-chainset-mm-in-grey","title":"Shimano Ultegra FC-R8100-P Ultegra 12-speed double Power Meter chainset, \/ mm in Grey","description":"\u003cul\u003e\n\u003cli\u003eThe HollowTech II 12-speed Ultegra chainset with integrated power meter 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\u003eAccurately calibrated strain gauges are integrated inside the crank arm, this provides a stable measurement system through rotation from both sides for extremely precise data\u003c\/li\u003e\n\u003cli\u003e+\/-2% accuracy of strain gauge measured power\u003c\/li\u003e\n\u003cli\u003eBluetooth and ANT+ with wireless firmware update and data acquisition system\u003c\/li\u003e\n\u003cli\u003eEasily rechargeable integrated battery with fully waterproof reliable electric system\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":"Shimano","offers":[{"title":"50 \/ 34 teeth 50 \/ 34T 172.5","offer_id":67589080318132,"sku":"FCR8100PD04","price":999.99,"currency_code":"GBP","in_stock":true},{"title":"50 \/ 34 teeth 50 \/ 34T 175","offer_id":67589080350900,"sku":"FCR8100PE04","price":999.99,"currency_code":"GBP","in_stock":true},{"title":"52 \/ 36 teeth 52 \/ 36T 175","offer_id":67589080383668,"sku":"FCR8100PE26","price":999.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0669\/2539\/6148\/files\/fcr8100pc_f03e2434-da19-4926-8e07-0f1d8165603d.jpg?v=1791888654","url":"https:\/\/www.99bikes.co.uk\/products\/shimano-ultegra-fc-r8100-p-ultegra-12-speed-double-power-meter-chainset-mm-in-grey","provider":"99 Bikes UK","version":"1.0","type":"link"}