ZIPP 303S DISC front wheel with tubeless tires

The ZIPP 303S DISC front wheel front wheel retains its ideal 45 mm rim height for all terrains, but adds a considerably wider internal width to deliver better performance and ride quality in all conditions.

The ZIPP 303S offers a redesigned profile and rim design to optimize rider performance on today's road bikes, which are more versatile than ever, whatever the road surface, and as fast as ever. This wheel is tubeless and suitable for disc-brake bikes, allowing you to ride wide tires at lower pressures on both road and gravel surfaces.

The 303 S is one of the lightest wheel axles, optimized for the best aerodynamic performance with a 28 mm tire, but capable of handling gravel tires up to 50 mm wide.

The key innovation lies in the design of the 303S rim. Its rim height of 45 mm is the same as that of its predecessor, the ZIPP 302, but its external rim width is 2 mm wider, at 27 mm, and tire width is 7 mm wider, with 23 mm internal width.

This rim platform is designed to accommodate a 28 mm tire. The wide rim optimizes the tire profile to allow lower tire pressure. This helps reduce rolling resistance and delivers a more comfortable ride. It offers a contact with the ground for better grip on bends and descents, and confident handling in wet conditions.

The result of all this is watts saved, according to Zipp's in-house tests. This wheel also features a modern design, distinguishing the cyclist within the peloton.