this rear derailleur features some of the finest technologies to keep you riding at the top of your game

Ventilation channels in the back padding ensure optimal air circulation and heat dissipation

there is an adaptor for Shimano road bike cranks

Unique two-piece

The RD-RX810 rear derailleur is compatible with road cassettes with a 34T low sprocket max

Crank Brothers Mallet Trail BOA Clip-In Shoes - US 12 - Black - Gold Virtual Parent this rear derailleur features someSome things just work better together. Like an optimized shoe pedal combination. Crankbrothers Mallet clip in plays nice on the race track and at the bike park. It has a ramped Match cleat box for easy front and rear pedal entry and for mud shedding. A Race Zone setback on the cleat track allows the cleat to be positioned further toward the heel for added stability when descending. OUTSOLE: Match Box optimized for any MTB pedals Race Zone for control