The Shimano GRX RD-RX400 Shadow 10-speed rear derailleur was specially developed for use on rough routes and gravel. The Shimano GRX features Gravel-specific ergonomics, optimized gradation options, ´
proven robustness and a quiet and stable drive from the rest of the component world. The mechanical Shimano GRX RD-RX400 rear derailleur is characterized by quiet, smooth, precise and reliable shifting, even in the most demanding terrain.
The Shadow RD+ chain stabilization system is primarily responsible for this, which prevents the chain from hitting and unnecessary movements of the rear derailleur cage, thus ensuring uninterrupted shifting performance.
Similar to Shimano's mountain bike rear derailleurs, there is an on/off switch next to the upper pulley. The derailleur pivot takes a firm grip when actuated to reduce excessive movement, noise and general chain noise. The 10-speed rear derailleur can accommodate cassettes with 11-32 teeth up to cassettes with 11-36 teeth.

- Area of use: gravel, cyclocross, touring/trekking
- Switching steps: 10-fold
- Mounting: Standard (Direct Mount compatible)
- Capacity: 41 teeth
- Compatible chain: Shimano Road 10-speed
- Adjustable chain stabilization prevents hitting and dropping of the chain
- Stabilizer with on/off switch to adapt to the terrain
- Gravel specific tension
- smooth and reliable shifting on mixed terrain
- Painted baffles
- 4 pivot bushings, fluorine coated
- Weight according to the manufacturer: 300g

Scope of delivery:
- 1 x Shimano GRX RD-RX400 rear derailleur
- 1 x Shimano OT-RS900 240mm outer casing
- 1 x extended end cap

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