{"product_id":"shimano-grx-fc-rx820-2-12-crankset","title":"Shimano GRX FC-RX820-2-12 Crankset","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eShimano crankset for the named series — the chainring-arm assembly that includes the crank arms, spider, and (usually) chainrings as a set. The foundation piece your bottom bracket, chain, cassette and derailleur all pivot around on the drivetrain side. GRX is Shimano's gravel \/ adventure groupset — clutch-equipped derailleurs, wider-range gearing, ergonomics tuned for on \/ off-road riding and hood-level grip on rough surfaces. This is the Shimano GRX FC-RX820-2-12 Crankset.\u003c\/p\u003e\u003ch3\u003eDetails\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e\u003cbr\u003enew-build spec on a Shimano-series drivetrain\u003cbr\u003efull drivetrain upgrade from an older or alternate group\u003cbr\u003ecrank-length change (170 \/ 172.5 \/ 175 mm) for bike-fit\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003eHollowtech II axle interface\u003cbr\u003eCrank-length options at checkout\u003cbr\u003eIncludes chainrings and arms; BB sold separately\u003cbr\u003eMatched to current-generation Shimano bottom bracket\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e\u003cbr\u003eCrank Length: 170mm · 172.5mm · 175mm\u003c\/p\u003e\u003ch3\u003eInstallation \u0026amp; Care\u003c\/h3\u003e\u003cp\u003eInstall with the Hollowtech II cap tool to factory preload. Pair with a current-generation Shimano bottom bracket. Check pedal-thread torque during install (15-year creak prevention).\u003c\/p\u003e\u003ch3\u003eBundle \u0026amp; Save\u003c\/h3\u003e\u003cp\u003eBuild a bundle and save up to 15% off.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.enroute.cc\/bundles\"\u003eShop Bundle Builder\u003c\/a\u003e\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"170mm","offer_id":45632202047736,"sku":"IFCRX8202CX81","price":1634.0,"currency_code":"CNY","in_stock":true},{"title":"172.5mm","offer_id":45632202080504,"sku":null,"price":1634.0,"currency_code":"CNY","in_stock":false},{"title":"175mm","offer_id":48205835993336,"sku":null,"price":1634.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0446\/6373\/4429\/files\/PDPFormattingCopy_50.png?v=1775596326","url":"https:\/\/checkout.enroute.cc\/en-cn\/products\/shimano-grx-fc-rx820-2-12-crankset","provider":"enroute.cc","version":"1.0","type":"link"}