Lycra finger sidewalls for added flexibility

Fit Type: Regular youth fit

With reinforced pins and X-bridge durability it is able to withstand up to a huge 450kg of force

The pack comes with the bounce-free No Dancing Monkey™ 2

Depth: 100mm

BOX Two eBike 9 Speed X-Wide Derailleur - Rear Derailleur - 9 Speed - Black PDP|PLP|Rail Material Lycra finger sidewalls for addedBOX shook up the drivetrain market last year with the release of their wide range 9 speed drivetrains. The prime 9 components are optimised for 11 50t cassettes without all the headaches of adjusting 12 gears. The Box Two Prime 9 rear derailleur is BOX's middle of the range Prime 9 offering. It includes many of the awesome features from the Box One derailleur but forgoes the adjustable clutch and uses bushing pulleys to be more wallet friendly. Who's