When you crave more speed, Shimano's Dura-Ace C50 Carbon Clincher Wheelset are the answer. It's a wheelset that excels in time trials, crits, and rolling road races as well as charity rides and weekend spins. The 50mm-deep rim is made of carbon with an aluminum brake track, while the clincher set-up provides unmatched convenience. On your next ride, the C50s supply the quick acceleration and speed necessary to cross the line first. Plus, these remarkable hoops feature top-of-the-line Dura-Ace hubs and bladed spokes that slice through the wind for free speed.