SHIMANO GRX RX400 2x10V Long Cage Rear Derailleur

Cyclocross and gravel riding are becoming increasingly popular, and our derailleurs are under heavy strain. For this reason SHIMANO has developed the GRX RX400 2x10V long cage rear derailleur. It features a chain stabilizer with Shadow RD+ technology (from MTB) to prevent chain jump. A switch is located on the top roller and, when activated, holds the pivot more firmly and reduces jerking. It is also possible to fit a Cassette up to 36 teeth for greater flexibility.

Guaranteeing effortless, fast and fluid shifting in all conditions, this derailleur is offered here in a long-clevis version for 10-speed cassettes.