The 303 has been completely redesigned with Firecrest shaping. The Carbon Clincher preserves the aerodynamic advantages of its tubular brother, while adding the convenience of a clincher tire. And at just 1498 grams, it's light enough to climb up the steepest gradients with ease.

All of the hallmark characteristics of the 303 have improved with the Firecrest Carbon Clincher. The Firecrest shaping optimizes the aerodynamic profile of both the front half and the back half of the wheel. In addition, Firecrest moves the center of pressure of the wheel backwards, giving the 45mm-deep rim the crosswind stability a box-section rim. At the same time, the 26.2mm-wide brake track allows the clincher tire to take on a wider, more stable shape without compromising rolling resistance. It's faster, simpler, and more stable.

The new wheels retain all the small details that make Zipp wheels what they are. Exposed spoke nipples sit in the aerodynamic shadow of the rims, keeping serviceability simple without compromising speed. And the signature ABLC™ rim dimples squeeze every last second of performance possible. To complete the package, Zipp has refined its venerable 88/188 hubset, reshaping the hub body, canting the non-drive side flange by 8 degrees and moving the bearing out by 7.5mm to increase overall stiffness and strength.

The stealthy Beyond Black versions feature black anodized hubs, black spokes, and black decals.