Zipp 303 S Disc Tubeless Wheelset

The Zipp 303 S Tubeless Disc Brake wheelset delivers the perfect combination of speed and versatility for modern cyclists. Building on its legacy of excelling in the toughest Spring Classics, this wheelset retains its all-terrain-friendly 45mm rim depth while introducing a wider internal rim width to enhance performance and comfort across various conditions.

As road bikes become more adaptable to diverse surfaces while maintaining their speed, the 303 S is designed to meet the demands of this new era. With an entirely new rim profile, it optimizes performance on both pavement and gravel. The tubeless design for disc-brake bikes enables the use of wider tires at lower pressures, delivering race-ready speed and a smoother ride, whether on smooth roads or rough trails.

Weighing among Zipp's lightest, the 303 S is fine-tuned for top aerodynamic efficiency with a 28mm tire, yet robust enough to handle gravel tires up to 50mm wide. Borrowing design elements from the premium 303 Firecrest Tubeless Disc Brake wheelset, the 303 S achieves greater speed and efficiency by reducing wind resistance, rolling resistance, rider fatigue, and weight.

The standout feature of the 303 S is its innovative rim design. While the rim depth remains 45mm, the width increases to 27mm, and the tire bed expands by 7mm to 23mm. This design is optimized for a 28mm tire, enabling lower tire pressures for reduced rolling resistance and improved ride compliance. Zipp’s testing reveals a 10% reduction in power required to maintain 40kph on smooth roads compared to competitors, making this wheelset a game-changer.

With refreshed aesthetics to complement its advanced performance, the 303 S stands out both visually and functionally, offering exceptional value for cyclists seeking speed, versatility, and innovation.