Prime rr 28 carbon clincher road wheelsetthe prime rr 28 carbon clincher road wheelset is the perfect wheelset for climbers and long distance riders alike a shallow 28mm deep rim profile reduces rotational weight to help you climb faster and adds increased stability in crosswinds to provide predictable handling our 25mm wide rim profile is optimised for use with wider tyres ranging from 25c to 33c for road use 25c to 30c tyres can easily be accommodated with our preference swaying towards 25c