Shimano GRX FC-RX820 1x12 Speed Crankset - 68-70mm Shell - 24mm - Four Bolt - 110 BCD Asymmetric Shimano - 175mm - Black - 42T - 49.7mm Chainline Ignore Wholesale Tier 2 Brand Rule no-fuss design is easy to

no-fuss design is easy to mount quickly

If you are replacing rotors or looking to upgrade

133mm width

or they're feeling sluggish

while grip-enhancing ULTREAD GE outsole provides reliable wet-weather traction on and off the bike

Shimano GRX FC-RX820 1x12 Speed Crankset - 68-70mm Shell - 24mm - Four Bolt - 110 BCD Asymmetric Shimano - 175mm - Black - 42T - 49.7mm Chainline Ignore Wholesale Tier 2 Brand Rule no-fuss design is easy toThe SHIMANO FC RX820 1 crank balances weight savings, optimized efficiency and an array of gearing options that cater to the segmented demands of mixed terrain riding. By pairing a 10 45T or 10 51T cassette with 40T and 42T chainrings, riders can choose closer gear steps or ultimate range. The FC RX820 1 comes in 170, 172. 5, and 175 mm crank arm lengths, providing an additional level of customization.