The A-Class ALX320DX/ALX320DX TRI Wheel Set is available in 700c and TRI 650c, both built with aluminum axle butterfly-shaped hubs.Shimano 8, 9 and 10 speed compatible cassette bodyRim is 26mm tall and 19.3mm wide, CNC-machined sidewallButterfly-shaped hubs with AL-7075 axle and cassette bodyRim manufactured with Alex EXA aluminum materialClincher rim includes alloy quick-release skewerCampagnolo 9 and 10 speed compatible freehub body available separatelySealed bearings