GRX 1x12 gravel crankset
Shimano GRX FC-RX610-1 1x Crankset
An affordable single-ring GRX crankset for 12-speed 1x gravel bikes, offered with 38T or 40T rings to suit everything from steep off-road climbs to faster dirt roads.
Highlights
Why we rate it
Chain retention
The single ring's tooth profile is designed to keep the chain in place on rough ground without a front mech.
Two ring sizes
A 38T ring gives lower climbing gears for loaded or technical riding, while 40T suits faster mixed-surface routes.
Simple 1x setup
Pairs with Shimano's 12-speed wide-range cassettes for a clean, low-maintenance gravel drivetrain.
Proven construction
Two-piece Hollowtech II design with a 24mm axle and outboard bearings.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model code
- FC-RX610-1
- Series
- GRX RX610 12-speed
- Speeds
- 1x12
- Chainrings
- 38T, 40T
- Crank lengths
- 165, 170, 172.5, 175mm
- Mount
- 110mm 4-arm
- Axle
- 24mm Hollowtech II
- Chain
- Shimano HG 12-speed
- Bottom bracket
- Hollowtech II threaded or press-fit (sold separately)
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, setup or advice, call 0203 148 6764 or email hello@thecyclecollective.cc.