SHIMANO GRX DI2 RX815 2x11V Medium Cage Rear Derailleur

Cyclocross and gravel racing are becoming increasingly popular, and our derailleurs are under heavy strain. For this reason SHIMANO has developed the GRX DI2 RX815 2x11V electric rear derailleur with medium clevis. It features a chain stabilizer with Shadow RD+ technology (from mountain biking) to prevent chain jump. A switch is located on the top roller and, when activated, holds the pivot more firmly and reduces jerking. What's more, a cassette with up to 34 teeth can be fitted for greater flexibility.

Guaranteeing effortless, fast and smooth shifting in all conditions, this derailleur is offered here in a medium clevis version for 11-28, 11-30, 11-32, 12-25, 14-28 and 11-34-tooth cassettes.