Shimano GRX RX810 road bike rear derailleur for double chainring

With the integrated Shadow RD+ chain stabilisation mechanism developed for MTB groupsets, the Shimano GRX rear derailleur offers quiet operation and highly precise gear changes, whatever the terrain.

The Shadow+ system features an On/Off lever that allows you to easily unlock the derailleur when riding on the road, making the drivetrain as smooth as that of a road groupset.

This rear derailleur is compatible with road cassettes featuring a maximum 34-tooth sprocket and with double-chainring cranksets.

The Shimano GRX groupset stands out with its specific components for gravel riding, offering ergonomics, optimised shifting options, reliability, and a quiet, stable drivetrain.

Shimano confirms that this is not a reworked version of its road components, but rather a groupset specifically adapted to the demands of gravel riding.

Features:

- Adjustable chain stabiliser that prevents chain rattling and skipping
- Stabiliser switch can be activated or deactivated depending on the terrain
- Clutch tension adapted for gravel riding
- For double chainring drivetrains
- Small sprocket: Max. 11T / Min. 11T
- Large sprocket: 34T max./ 30T
- Total capacity: 38T
- Shimano part number: IRDRX810
- Shimano part number: RD-RX810
- Drivetrain type: mechanical
- Shadow RD+ system