{"product_id":"shimano-105-fc-r7100-left-hand-crank-arm-unit-160mm-for-12-speed-road-bikes","title":"Shimano 105 FC-R7100 Left Hand Crank Arm Unit 160mm for 12-Speed Road Bikes","description":"\u003cp\u003eThe Shimano 105 FC-R7100 left hand crank arm unit offers precise performance for your 12-speed drivetrain. Designed for durability and smooth pedaling, it ensures reliable power transfer on every ride.\u003c\/p\u003e\n\u003cp\u003eAvailable in multiple sizes, including 160mm, it fits perfectly to enhance your cycling experience. As a genuine Shimano component, it guarantees quality and compatibility with your setup.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacing worn or damaged left crank arms for Shimano 105 12-speed systems\u003c\/li\u003e\n  \u003cli\u003eImproving pedaling efficiency with a lightweight, durable design\u003c\/li\u003e\n  \u003cli\u003eCustomizing crank arm length to suit individual rider preferences\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 with non-Shimano cranksets or incompatible drivetrains\u003c\/li\u003e\n  \u003cli\u003eRiders seeking a full crankset replacement instead of a single arm\u003c\/li\u003e\n  \u003cli\u003eApplications outside road cycling where crank arm specifications differ\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this crank arm compatible with my Shimano 105 12-speed setup?\u003c\/strong\u003e\u003cbr\u003eYes, it is specifically designed as a replacement left crank arm for Shimano 105 FC-R7100 12-speed systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I choose different crank arm lengths?\u003c\/strong\u003e\u003cbr\u003eYes, this part is available in 160mm, 165mm, 170mm, 172.5mm, and 175mm sizes to fit your needs.\u003c\/p\u003e","brand":"Shimano 105","offers":[{"title":"Default Title","offer_id":45478530842799,"sku":"Y0RS98020","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/Screenshot_2026-03-13_080515.jpg?v=1773389143","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-105-fc-r7100-left-hand-crank-arm-unit-160mm-for-12-speed-road-bikes","provider":"Swinnerton Cycles","version":"1.0","type":"link"}