Zipp 303 S Tubeless Ready wheels

Zipp's 303 S Tubeless Disc Brake wheelset gives today's riders the versatility they demand with the speed they crave. Greatly expanding on its legacy of conquering the Spring Classics, this 303 wheelset maintains the ideal 45mm rim depth for any terrain, but adds a significantly wider internal width to provide greater performance and ride quality in almost any terrain. measurable ways. Road bikes are more versatile than ever, regardless of the road surface, but just as fast as before. The 303 S offers an entirely new profile and rim design to optimize rider performance on this new breed of bike. This wheelset is tubeless for disc brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement. The 303 S is among our lightest wheels, optimized for maximum aerodynamic performance with a 28mm tire but capable of handling gravel tires up to 50mm wide. The 303 S borrows design concepts from the top-tier 303 Firecrest tubeless disc brake wheelset to gain speed through increased efficiency. This is achieved by creating a wheel with reduced: wind resistance, rolling resistance, rider fatigue and weight. The key innovation is in the rim design of the 303 S series. Its 45mm rim depth is the same as its predecessor, the 302 disc brake. But its rim width is 2mm wider, at 27 mm, and the tire bed is 7 mm wider, at 23 mm. That rim platform is designed to be the fastest with a 28mm tire. The wide rim optimizes the tire profile to allow for lower tire pressure. This helps reduce rolling resistance and provides a more compliant ride. The result of all this is a watt saving of 10 percent compared to a comparable wheel in terms of total power needed to travel 40 km/h on a flat and smooth road with a 28 mm tire, according to internal tests of Zipp. This revolutionary wheelset also features completely new cosmetics, which sets the rider apart from the pack and is attractively priced.

CHARACTERISTICS

• Zipp graphics and cosmetic identity that scream speed
• Fastest at 28mm, also fits wide gravel tires
• Hub 76/176 DB with central locking interface
• XDR guide body option
• Wide rims optimize the tire profile to allow for lower tire pressure, especially with tubeless. The result is a larger contact patch for increased grip for confident cornering, descents and handling in wet conditions.
• Lower tire pressures and larger volume ensure a compliant ride with less vibration.
• Noticeable watt savings when running larger tires at lower pressure.

Wide hookless rims create a seamless transition to the tire, reducing drag

Specifications: