Fast climbs and fast descents, from sun up until sundown, are the norm on SRAM's Roam 50 Wheels. They boast a dedicated balance of low-weight, strength, and width to excel on a wide variety of XC and trail-bike terrain. The 25mm wide rims give big tires the support they deserve for outstanding cornering control, and the rims are durable enough for day-after-day sessions, yet light enough for race day. Stomp on the pedals and feel the rapid engagement of the excellent star ratchet engagement freewheel system. Ditch the tubes with full UST compatibility and reap the rewards of excellent traction, control, and fewer flats. And, the Roams' great features continue, like the Solo Spoke design that uses one spoke length to fit the entire wheel and quick release/12mm through axle end caps that can be interchanged without tools.