{"product_id":"shimano-ultegra-fc-r8100-p-12-speed-double-crankset-with-power-meter-165mm","title":"Shimano Ultegra FC-R8100-P 12-Speed Double Crankset with Power Meter 165mm","description":"\u003cp\u003eThe Shimano Ultegra FC-R8100-P crankset with integrated power meter is engineered for riders who demand precision and performance. Featuring HollowTech II technology, this 12-speed double crankset combines lightweight construction with exceptional stiffness, delivering power seamlessly and efficiently. The integrated strain gauges within the crank arm provide highly accurate power measurement with a ±2% margin of error, ensuring you can trust your data during every ride.\u003c\/p\u003e\n\n\u003cp\u003eConnectivity is effortless thanks to Bluetooth and ANT+ compatibility, allowing wireless firmware updates and real-time data acquisition. The rechargeable battery is fully waterproof, making the system reliable even in challenging weather conditions. Enhanced by the HollowGlide hollow outer chainring, this crankset significantly reduces flex and improves shifting performance under heavy loads, while the specially designed teeth ensure optimal interaction with 12-speed HG chains for superior power transfer.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for versatility, the Ultegra FC-R8100-P offers a wide range of chainring sizes and crank arm lengths to suit various riding styles and disciplines. The integrated bottom bracket features a wider bearing placement and larger axle diameter, maximizing stiffness and efficiency. With its durable construction and smooth bearing interface, this crankset delivers lasting performance and reliability on every ride.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAccurate and reliable power measurement with ±2% strain gauge precision\u003c\/li\u003e\n  \u003cli\u003eLightweight yet stiff crankset ideal for both competitive and enthusiast road cyclists\u003c\/li\u003e\n  \u003cli\u003eSeamless wireless connectivity via Bluetooth and ANT+ for easy data tracking and updates\u003c\/li\u003e\n  \u003cli\u003eImproved shifting performance under high load thanks to the HollowGlide hollow outer chainring\u003c\/li\u003e\n  \u003cli\u003eCompatible with 12-speed HG chains for efficient power transfer\u003c\/li\u003e\n  \u003cli\u003eWide range of chainring and crank arm options to match various rider preferences\u003c\/li\u003e\n  \u003cli\u003eDurable and smooth bottom bracket design enhancing long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse on non-road bike types such as mountain or BMX bikes\u003c\/li\u003e\n  \u003cli\u003eCompatibility issues with frames lacking O.L.D. 135 \/ 142mm spacing\u003c\/li\u003e\n  \u003cli\u003eRiders not requiring power meter data or wireless connectivity features\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Shimano Ultegra FC-R8100-P crankset compatible with all Shimano road groupsets?\u003c\/strong\u003e\u003cbr\u003eYes, this crankset is designed to integrate seamlessly with Shimano’s 12-speed road groupsets, ensuring smooth shifting and optimal performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the battery last, and is it easy to recharge?\u003c\/strong\u003e\u003cbr\u003eThe integrated battery offers long-lasting use and can be easily recharged via USB. Its fully waterproof design guarantees reliability in all weather conditions.\u003c\/p\u003e","brand":"Shimano Ultegra","offers":[{"title":"Default Title","offer_id":45478503841967,"sku":"FCR8100PA","price":899.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1731600341-16919500.jpg?v=1768522152","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-ultegra-fc-r8100-p-12-speed-double-crankset-with-power-meter-165mm","provider":"Swinnerton Cycles","version":"1.0","type":"link"}