BOX Three Prime 9 Speed Twin Lever Shifter - Black - Multi Shift - 22.2mm Bar Clamp - 9 Speed YGroup_7033423724589 If you aren't sharing a

If you aren't sharing a mount with a brake

Material: Manufactured from cold drawn

How does it mount to the car: On the tow ball

Upper CNC Machine Cup

Made from Hardened Alloy Tool Steel

BOX Three Prime 9 Speed Twin Lever Shifter - Black - Multi Shift - 22.2mm Bar Clamp - 9 Speed YGroup_7033423724589 If you aren't sharing aBox shook up the market when they introduced their wide range, 11 50T 9 speed drivetrain. The Box Three is the value option within the Prime 9 lineup. With Prime 9 you still get the wide range offered on competing 12 speed setups but with fewer shifts required to go up and down the gear range. Spend more time riding and less time tinkering with your gears on a Box Prime 9 setup. Who's this item for: Any rider wanting an 11 50T range in a 9 speed