You can have it all with Zipp’s 303 Firecrests. They're stiff, aerodynamic, light and tough, and they handle beautifully in all conditions. They employ 45mm-deep, 28.5mm-wide dimpled rims for an aero advantage and the extra-width also provides a supple ride and superior cornering while minimizing rolling resistance, too. With their nimble weight, the 303s climb with the best and accelerate out of corners like rockets. And the Zipp hubs employ oversize axles and smooth Swiss steel bearings. Plus, you get fine Sapim CX-Ray spokes to keep these amazing wheels going great for years to come.