BOX Two Prime 9 Speed Twin Lever Shifter - Black - Single Shift - 22.2mm Bar Clamp - 9 Speed Out of Stock The X10-EL (Extra Light) sits

The X10-EL (Extra Light) sits in the middle of KMC's range

Double chainrings will only work with medium cage derailleurs

Who's this item for: Aimed at XC riders

New anti-slip calf band and silicone grip lining

Box hit the market for a six when they unveiled the wide-range Prime 9 families of components

BOX Two Prime 9 Speed Twin Lever Shifter - Black - Single Shift - 22.2mm Bar Clamp - 9 Speed Out of Stock The X10-EL (Extra Light) sitsBox's goal with Prime 9 was to blend all the durability and reliability from a traditional 3x9 drivetrain with a 1x setup. Box Two is the performance middle tier 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. The Box Two shifter maintains all the great functionality of the Box One but forgoes the 1 piece pull lever from