650B

Wherever the trail leads, SRAM's Roam 40 is ready to go.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. Ditch the tubes with full UST tubeless compatibility, and reap the rewards of excellent traction, control, and fewer flats. And, the Roams' great features continue with their Solo Spoke design that uses one spoke length to fit the entire wheel. This front wheel comes with a quick-release skewer and 15mm thru-axle end caps that can be interchanged without tools.