SHIMANO GRX RD-RX400 Rear Derailleur – 10-speed, smooth shifting on gravel

 The SHIMANO GRX RD-RX400 is developed for gravel riders who want to rely on quiet, stable, and precise shifting on rough and varied terrain. Thanks to the integrated SHIMANO SHADOW RD+ chain stabilizer, the chain maintains better tension, significantly reducing rattling and chain slippage.

 This 10-speed rear derailleur shifts smoothly and reliably, even when the terrain gets tougher. The stabilizer is easy to switch on or off , allowing you to tailor its operation to the conditions. The gravel-tuned clutch tension provides extra control and a consistent shifting experience during every ride.

 The GRX RD-RX400 is suitable for a wide front-end gear range and features a maximum chainring differential of 16T . Additionally, the derailleur supports a largest sprocket of 36T and a total capacity of 41T , making it versatile for a variety of gravel and adventure rides. It is also compatible with the current DUAL CONTROL LEVER for 10-speed road bikes.

 Key features:

 
 10-speed rear derailleur for gravel and all-road.
 
 SHIMANO SHADOW RD+ chain stabilizer.
 
 Quiet and stable shifting on rough terrain.
 
 Stabilizer easy to switch on/off.
 
 Suitable for cassettes up to 36T.
 
 Total capacity: 41T.
 
 Compatible with Dual Control Lever for 10-speed road bikes and gravel bikes.