ICAN 50mm 700C AERO Clincher Carbon Wheels Road Bike 6 Pawls Hub with Shimano 10/11 Speeds Freehub Full carbon fiber T700 clincher 700C road bike rim with basalt brake surface 6 powls Powerway road bike hub R13 2 sealed bearing in the front 4 sealed bearing in the rear Cassette Compatibility: Shimano 10/11 speeds(campagnolo 10/11 speeds available) Aero bladed spokes-incerase Wheel Strength and Improve Aerodynamic Speed Weight: 1510+-40g/set