Shimano WH-R8170-C60-TL Ultegra Wheelset ZOOOOM! Aerodynamics are key when you're trying to achieve maximum speed. With Shimano's new Ultegra C60 wheels you'll have no problem dominating the streets, taking every KOM, and achieving lightspeed. The deep 60mm rip depth is ideal for flatter races and criterium courses where aerodynamic efficiency takes precedence. In fact the rim even shares the same rim profile as the R9200 Dura-Ace wheels, ensuring efficiency will never be brought into question. A full carbon fiber rim construction makes the rims surprisingly light for how deep the rims are, allowing you to quickly jump into a sprint at a moments notice. The 21mm internal rim width pairs with the rim's tubeless compatibility to allow you to run wider tires at lower pressures for lower rolling resistance and increased grip. Features60mm rim depth for peak aerodynamic gains Dura Ace rim profile delivers top of the line efficiency Lightweight rims for lightning fast sprints and acceleration Tubeless rims let you run wider tires at lower pressures Reliable cup and cone Shimano hubs offer legendary reliability Support for both 11 and 12-speed Shimano road cassettes SPECIFICATIONSWheel Size700c Material Carbon Fiber Outer Width28mm Inner Width21mm Rim Height60mm Spoke Drilling24h Valve Type Presta Tubeless Yes Tire Type Clincher Brake Compatibility Disc (Centerlock)Engagement Degree Engagement Upgrade Available No Front Axle12x100mm Rear Axle12x142mm Intended Use Road Approximate Weight738g Front, 911g Rear | Shimano | Ultegra Wh-R8170-C60-Tl Wheelset Wheelset, 24H, Centerlock, 11/12 Speed Freehub