ROSE Bikes GRX RX400 10 Speed Rear Derailleur| Rear Derailleurs

Explore beyond!
Discover the almost endless possibilities of modern road cycling with SHIMANO GRX components. The RX400 Series is Shimano’s entry into their range of gravel- and cross-dedicated GRX groupsets.

As for all GRX rear derailleurs, the clever developers of the Japanese industry giant have used the long proven Shadow RD+ technology from the mountain bike sector for the GRX RX400 10-speed rear derailleur, featuring a friction damper that slows down the forward and backward movement of the RD-RX810 RX812 rear derailleur. This significantly reduces the risk of chain bouncing and jump off and shifting into the wrong gear, while significantly reducing chain noise. This guarantees silent, smooth, precise and reliable gear changes in challenging terrain. Whether riding off tarmac roads and on dusty gravel roads, going on a bikepacking adventure with lots of luggage, doing classic cyclocross or simply commuting to work.

Details:
Shadow RD+ technology (friction damper)
Gravel-tuned clutch tension
Silent, smooth and reliable shifting on rough terrain
4 PTFE coated pins

Specs:
Material: aluminium, steel
Compatible with 10-speed
Largest sprocket max.: 36 teeth
Largest sprocket min.: 32 teeth
Smallest sprocket max.: 11 teeth
Smallest sprocket min.: 11 teeth
Max. front difference: 16 teeth
Total capacity: 41 teeth
Weight: approx. 303 g

Recommended cassette:
CS-HG500 10-speed 11-34t & 11-32t cassette (product code: 2137539)
CS-HG50 10-speed 11-36t cassette (product code: 1998784)
Recommended chain:  
CN-HG54 HG-X 10-speed (product code: 1770559)

In the box:
1x SHIMANO GRX RX 400 rear derailleur
1x SHIMANO OT-RS900 outer cable

Note: Only compatible with Shimano Tiagra 47XX and GRX shifters or shift/brake lever combos (hydraulic or mechanical). Other shifting components are not compatible due to changed gear ratios.