"State of the art" materials and intensive tests: DT Swiss knows exactly how easily a product can be designed to perform its task perfectly. That's why the XM 421 is as light as an all-mountain rim can be. It fears no trails - no matter what rock gardens you might expect.
Tubeless tyres offer some decisive advantages over the conventional combination of tyre and tube.
The welding process produces the most precise, lightest and most stable rim connection. After welding, the joint is plastered to achieve a seamless transition.