M 502 AM Rim with precision insert, compatible with current tires with an inner width of 30 mm. The ideal width for the ideal weight. With an inner width of 30 mm, the M 502 rim allows you to mount lightweight, fairly wide tires and tackle even the toughest terrain. The combination of DT Swiss’s special rim material and the cost-effective tubular construction offers the ideal balance between light weight and width—all at an affordable price.