The Zipp 303 S Tubeless wheels for disc brakes provide all the versatility while maintaining the speed that today’s cyclists demand and desire.

Greatly expanding their legacy of success in the Spring Classics, the 303 S wheels maintain their ideal identity for every type of terrain with a rim height of 45 mm, adding a significantly wider internal width to ensure better performance and ride quality.
Road bikes are now more versatile than ever regardless of the surface, yet they retain their speed.
The 303 S features a redesigned rim profile and design to optimize performance for any rider who wants to rely on this new innovative product. Tubeless, for disc brakes, the 303 S allow the use of wide tires at low pressures to tackle even gravel roads.

The 303 S are among the lightest wheels in the Zipp range and are optimized to deliver the best aerodynamic performance with a 28 mm tire, but can fit off-road tires up to 50 mm wide.
The significant innovation is in the design of the new 303 S; the external rim width is increased by 2 mm, to 27 mm, and the tire bed is a full 7 mm wider, with 23 mm internal width. The ability to inflate the tire at lower pressures helps reduce rolling resistance and consequently provides a more comfortable ride.
In numbers, according to internal tests conducted by Zipp, riding on a flat road at 40 km/h with a 28 mm tire saves you as much as 10 watts.
Last but not least, a very attractive price and a refreshed graphic design that will make you immediately visible within the group.

Features

• Zipp graphics and a new identity that screams speed.
• The fastest with 28 mm tires, also suitable for wider gravel tires.
• Wide rims optimize the tire profile and allow for lower inflation pressure, especially for tubeless. Larger contact area for better grip, cornering safety, descending control, and wet handling.
• Lower inflation pressure and greater volume ensure a comfortable ride with less vibration. Significant watt savings when using larger tires inflated at low pressures.
• Wide rims create a seamless transition to the tire, reducing aerodynamic drag.
• 76 / 176 DB hubs with center lock interface.
• Maximum tire pressure: 72.5 psi (5 bar).
• Disc standard: Center Lock
• Front hub: 12x100 mm.
• Rear hub: 12x142 mm.