SHIMANO GRX RX812 1x11V 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 RX812 1x11V long cage rear derailleur. It features a chain stabilizer with Shadow RD+ technology (taken from mountain biking) to prevent chain jerking. A switch is located on the top roller and, when activated, holds the pivot more firmly and reduces jerking. What's more, you can fit a cassette with up to 42 teeth for greater flexibility.

Guaranteeing effortless, fast and smooth shifting in all conditions, this derailleur is offered here in a medium clevis version for Deore XT, SLX or Deore-level cassettes.