Shimano GRX FC-RX820 1x12 Speed Crankset - 68-70mm Shell - 24mm - Four Bolt - 110 BCD Asymmetric Shimano - 170mm - Black - 40T - 49.7mm Chainline YGroup_7180504367149 pumps and pops in the

pumps and pops in the absence of pedal kickback

Storage Options:

Included: Includes the damper and seal head on the damper

check out our inventory of great flat pedal shoes from FiveTen and Shimano

Width: This is a wide 1/8" chain

Shimano GRX FC-RX820 1x12 Speed Crankset - 68-70mm Shell - 24mm - Four Bolt - 110 BCD Asymmetric Shimano - 170mm - Black - 40T - 49.7mm Chainline YGroup_7180504367149 pumps and pops in theThe 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.