High performance cross country rim designed to dt swiss exacting specifications the dt swiss xr 400 26 mtb disc rim uses sbwt strength boost welding technology to create a perfectly welded join for a durable reliable rim machined join and disc specific rim profile add strength and durability to this high quality super stiff cross country rim perfectly aligned stainless steel spoke eyelets distribute stress evenly allowing for 4 higher spoke tensions than conventional rims higher tor