M 1900 SPLINE® Reliable freedom in the mountains. After a long climb, the perfect trail opens up beneath your tyres: flowing, dusty, varied and seemingly endless. With the M 1900 SPLINE, nothing stands between you and an all-mountain thrill ride. Designed to strike the optimum balance between weight and durability, this rim delivers efficient climbing characteristics as well as excellent impact resistance on tight, technical trails. Thanks to the new Ratchet LN system and hand-built construction by experienced technicians, this wheel is a dependable partner for freewheeling descents in the mountains.