SHIMANO GRX RX820 Crank Set - 1 x 12-Speed - 40t - 170mm giant From the quadzilla climbs to

From the quadzilla climbs to the serpentine descents

SRAM's PowerChain II increases front and load shifting performance without sacrificing rear shifting precision

the 40|44 GR plays nicely with today’s slew of big volume gravel tires and a semi-hooked rim makes tubeless set up easier than ever

9% grippier

The universal mounting system fits nearly any crossbars you can think of

SHIMANO GRX RX820 Crank Set - 1 x 12-Speed - 40t - 170mm giant From the quadzilla climbs toThe Shimano FC RX820 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed terrain riding. Riders can choose closer gear steps or ultimate range depending on personal need by pairing a 10 45t or 10 51t cassette with this crankset's 40t chainring (cassettes sold separately) Optimal gearing for mixed terrain riding Hollowtech II crank arms provide strength and stiffness with the