Convert your SRAM Roam 60, Roam 50 or Rail 50 rear wheel to run an 11- or 12-speed SRAM XD cassette, without buying a whole new wheel. This genuine SRAM service kit pairs the correct rear end caps with an XD driver body for the 12x135mm thru-axle standard.

Highlights

• Genuine SRAM XD driver body plus matched rear end caps
• Accepts SRAM XD cassettes with a 10-tooth smallest cog (11 and 12-speed)
• Set up for the 12x135mm thru-axle (TA) rear standard
• Fits SRAM Roam 60, Roam 50 and Rail 50 rear wheels
• XD spline interface resists the driver-body marring seen on older designs

What it does

The XD driver body is the splined sleeve your cassette locks onto. Swapping to an XD driver lets your Roam or Rail wheel accept SRAM's wide-range XD cassettes, which start at a 10-tooth cog for a lower gear and a broader spread than a traditional 8/9/10-speed setup allows.

Thru-axle end caps

The included end caps configure the rear hub for a 12x135mm thru-axle frame. They press onto the hub ends and are removed by hand or with simple hex keys, making axle-standard changes straightforward.

Compatibility and fit

Designed for SRAM Roam 60, Roam 50 and Rail 50 rear wheels (DT Swiss-built hubs). This kit is for the 12x135mm thru-axle standard; choose the 135mm QR or 12x142mm version if that matches your frame. The XD driver accepts SRAM XD cassettes only, not XDR cassettes. If you are unsure which body or axle standard your wheel uses, contact us before ordering.