700c Wheels - Cannonball 38mm Upgrade
700c Wheels - Cannonball 38mm Upgrade, The 38mm Cannonball was designed to be a first-choice gravel racing tire - Dirty Kanza, Trans Iowa, Land Runa | it's conquered them all. The directional, tight-knit center tread efficiently decreases rolling resistance while the side knobs increase cornering traction. The center tread's diamond pattern is optimized specifically for gravel riding and sheds dirt and gravel debris.