BOX Three Prime 9 X-Wide Rear Derailleur - 9-Speed, Long Cage, Matte Black

The Box Three Prime 9 Rear Derailleur is a simple, but fully-featured and wallet-friendly rear derailleur. It includes a limited slip clutch, sealed bearing pulleys and a solid construction. It is compatible with 11-46 and 11-50t cassettes making it one of the most versatile derailleur offerings for Prime 9 drivetrains. Prime 9 technology offers the same range as a 12-speed drivetrain, with fewer gears to shift through The limited slip clutch engages instantly and offers constant torque for less chain slap, better chain engagement and no dropped chains Stamped front and rear cage Direct channel cable stay Bearing pulleys