WWC-R-50-25C-3 Material: Hi-TG Carbon Tire Type: Clincher/Tubular Width: 25mm Height: 50mm Spoke: Power Beam Tracking and Road Racing Cassette Compatibility for Road: Shimano, Campagnolo 10-11s Hub: Chosen System Bearing Count: Road/2(f) and 4(r) Track/2(f) and 2(r) Weight: A. Road/Tubular F: 750g R:900g B. Track/Tubular F: 750g R:900g C. Road/Clincher F: 850g R:950g D.Track/Clincher F: 850g R:950g