Zipp 303 S Tubeless Disc Brake Carbon Rear Wheel - SRAM XDR

Built to deliver real-world speed, the Zipp 303 S Tubeless Disc Brake Carbon Rear Wheel combines advanced carbon performance with everyday durability. Its 45mm deep hookless rim is optimized for wider tubeless tires, reducing rolling resistance while enhancing comfort and control across varied road conditions. Paired with a SRAM XDR driver for seamless compatibility with modern drivetrain systems, the 303 S offers exceptional aerodynamics, confident handling, and outstanding value—making high-performance carbon wheel technology more accessible than ever.

Features

• Zipp graphics and cosmetic identity that scream speed
• Fastest with 28mm, fits wide gravel tires as well
• 76 / 176 DB hubs with Center locking interface
• XDR and HG driver body option available
• Wide rims optimize tire profile to allow lower tire pressure, especially with tubeless. The result is a larger contact patch for increase grip for confident cornering, descending, and handling in wet conditions.
• Lower tire pressures and larger volume provides a compliant ride with fewer vibrations.
• Significant watt savings when running larger tires at lower pressure.
• Wide hookless rims create a seamless transition to the tire, reducing drag.

Specifications

• Size - 700c
• Rim construction - Carbon – Hookless
• Tire compatibility - Tubeless tires only
• Rim depth - 45mm
• Brake compatibility - Disc (Center Lock)
• Rim - inside width - 23mm
• Rim profile - Symmetrical
• Rim finish - UD fiber / Bake-On labels / Matte clear coat
• Hub -176D, 76D
• Driver body type - n/a, SRAM XDR, SRAM/Shimano Road
• Bearings - Cartridge - Steel
• Max tire pressure - 73psi
• Max recommended system weight - 250lbs/114kg
• Spoke Length DS - 264mm, 266mm
• Spoke Length NDS - 266mm, 268mm
• Max outside width - 28mm
• Weight - 819g (approximated weight)