SRAM's Conversion Caps are just what you need to convert your Roam 60, 50, or Rail 50 wheels to fit your bike's rear axle.
|135 x 12mm Thru Axle, 9/10-Speed (Rear)||710845734748||00.1918.125.007|
|135 x 12mm Thru Axle, XD Driver (Rear)||710845734809||00.1918.125.013|
|135 x QR, 9/10-Speed (Rear)||710845734731||00.1918.125.006|
|135 x QR, XD Driver (Rear)||710845734793||00.1918.125.012|