Shimano GRX FC-RX810-1 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining cadence. It is offered in 40T and 42T chainring options and 170mm 172.5mm and 175mm crank arm lengths.
- Arm Material: aluminum
- Arm Length: 170mm 172.5mm 175mm
- Chainring Sizes: 42t 40t
- Bolt Circle Diameter: 110 x 4 asymmetric
- Bolts: 4