BOX One Prime 9 Speed X-Wide Derailleur - 9 Speed YGroup_7033475760173 Quick release mount — installs

Quick release mount — installs securely and releases quickly at your whim

11-42T / steel for gears 1-10 and aluminum for 11

Replacement parts for Wolf Tooth's ReMote lever

the GG-1 is perfect for all mechanical hobbies

Central crease lines allow 'roof' to be raised to achieved desired tyre clearance

BOX One Prime 9 Speed X-Wide Derailleur - 9 Speed YGroup_7033475760173 Quick release mount — installsBOX shook up the drivetrain market with the release of their wide range 9 speed drivetrains. The prime 9 derailleurs are built for 11 50t cassettes without all the headaches of adjusting 12 gears. The Box One Prime 9 rear derailleur is Box's top of the range Prime 9 offering with all the bells and whistles. It features an adjustable clutch, precision sealed bearing pulleys and a fully forged construction. Who's this item for: Anyone already running a