A genuine Shimano replacement left crank arm for the GRX FC-RX820-1 crankset. Use it to replace a damaged or bent non-drive arm without buying a whole crankset.

Compatibility and fit

Made for the Shimano GRX FC-RX820-1 Hollowtech II crankset only. Choose the length that matches your drive-side arm. The drive-side arm, spindle, chainring and bottom bracket are not included. If you're unsure which arm your bike needs, bring it in and we'll check it.

Covered by Shimano's warranty against defects in materials and workmanship. Crash damage, pedal-thread damage from incorrect fitting and normal wear are not covered. This cover is in addition to your rights under the Australian Consumer Law.

For warranty support, return the item to Tune Cycles with your proof of purchase and we'll manage the claim with the distributor for you.

  • Genuine Shimano left (non-drive side) crank arm
  • For the GRX FC-RX820-1 crankset
  • Lengths: 170, 172.5 and 175mm
  • Spare part: arm only
BrandShimano
SeriesGRX
FitsFC-RX820-1 crankset
SideLeft (non-drive)
SKU SHM-FC-RX820-1-LARM
Brand Shimano
Shipping Weight 0.3000kg
Shipping Width 0.250m
Shipping Height 0.100m
Shipping Length 0.400m