XR 391 modern welded cross-country rim, designed with a 25 mm internal width. The latest-generation XC rim: the right size to fit sufficiently wide tyres and dominate the competition on today's demanding cross-country courses. The XR 391's welded construction and its micro-blasted, anodised finish are matched only by the brilliance of your riding style. With its dedicated cross-country profile, special alloy and PHR nipple-to-spoke interface, it manages the feat of combining width, strength and lightness.