Our new XCO, XCM, and EMP wheels are the result of testing multiple asymmetric rim widths with every tire that you can think of. The result is three widths to choose from that make sense and a new finish that is easier to clean and scratch resistant.
XCO - Our lightest MTB rim for XC racers who prefer traditional tire widths
XCM - Re-designed with a 30mm internal width and beefed up for strength. XCM is ideal for trail riders and racers who get a little rowdy but still like a light wheelset.
EMP - These are the wide ones! EMP rims come in 29" and 650b and have a 35mm internal width making them ideal for Enduro and Plus tires. If you go big choose EMP.