SHIMANO GRX RX820 Crank Set - 1 x 12-Speed - 40t - 170mm giant BioViz® reflective elements for low

BioViz® reflective elements for low light visibility

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

Magnetic faceplate

Versatile and capable - Powerful disc brakes and a wide range of gears help you increase your speed and tackle hills with more control

From the quadzilla climbs to the serpentine descents

SHIMANO GRX RX820 Crank Set - 1 x 12-Speed - 40t - 170mm giant BioViz® reflective elements for lowThe 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