‘State of the art’ materials and intensive testing make it possible. DT Swiss knows exactly how easily a product can be designed to fulfil its task perfectly. That's why the XM 421 is as light as an all-mountain rim can be. She’s is not afraid of any trails, no matter what rock gardens awaits her there.
Tubeless Technology Tubeless tyres offer some key advantages over the conventional combination of tyre and inner tube.
Welded The welding process produces the most precise, lightest and most stable rim joint. After welding, the joint is plastered to achieve a seamless transition.