SRAM Conversion Cap & XD Driver Body for Roam 60/50 and Rail 50 Wheel

Convert your SRAM Roam 60, 50 or Rail 50 wheels to SRAM 11-speed with the XD Driver Body and Axle Cap. XD is a cassette driver body that allows the use of a 10-tooth small cog and provides an improved interface with the cassette. The axle cap is specific to the XD driver and your preferred axle choice.