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SHIMANO GRX is a gravel specific components group with gravel optimized gearing options and rugged reliability. Not a modified set of road components, it was designed from the ground up as a gravel specific groupset.
The new Shimano 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.
Crankset: GRX FC-RX810-1 (170mm) (172.5mm) (175mm) (40T) (42T)
Some variants may not appear in drop-down (if they're out of stock).