12 speed B- Bolts fit any 1x12 speed SRAM Derailleur

Cons: Outside of the claimed stronger axle the only other difference to the MX4 is the cleats that come with the MX6

It has five modes available

and 3 different nipple driver bits

this is only for Presta valves

Race Face Turbine R 35 Stem - Silver - 35mm - 32mm x 0 Degree - 1 1-8th Inch Images Uploaded - Ready for Review 12 speed B- Bolts fitThe R stands for Rally, and RaceFace has made this stem to go on bikes that get ridden hard. Designed to keep weight down while keeping stiffness and strength up, the stem is beautifully machined with laser etched logos and doesn't have any sharp edges or exposed bolts to bang your knees on. The zero degree rise makes it easier to set your bar height with the use of stem spacers and the 35mm clamp allows for the use of larger diameter bars. Features: