Zipp 303 SW Tubeless Disc Brake Road Wheels offer supreme aerodynamics, a smooth ride, and lightweight performance for modern road bikes. Zipp refined the construction of the wide 40mm deep rims to improve their impact strength without adding weight, and then used surface dimpling and a hookless sidewall design to optimize the aerodynamics of these rims especially when combined with wider road tires. As an additional benefit, the wider rim reduces tire deflection and rolling resistance, and increases the air volume which will improve flat protection, give a smoother ride, and improve traction. In the middle of these wheels is a set of ZR1 hubs that utilize robust stainless steel cartridge bearings and a highly efficient 6-pawl rear freehub design to minimize maintenance and deliver exceptional performance. Rounding out these wheels is an integrated Zipp AXS Wheel Sensor that will allow a rider to monitor and analyze the tire pressure in real time without needing to attach a bulky external device to the valve stem. Combine everything together and Zipp’s 303 SW Tubeless Disc Brake Wheels offer superior comfort, durability, and speed on all roads, no matter the surface.

• 303 SW tubeless ready rims have a revised uni-directional carbon fiber layup to create a rim with improved impact strength vs. previous versions without adding weight
• 40mm deep rim and a wider profile provides smoother transitions for airflow over the tire, rim, and spokes to boost aerodynamic efficiency especially with wider tires
• 25mm internal width combined with hookless bead profile features less tire deflection for reduced rolling resistance and allows lower pressures to be safely run for improved cornering traction and a smoother ride
• ABLC dimpled rim surface works much like the dimples on a golf ball to reduce drag/speed up the airflow over the rim
• Integrated Zipp AXS Wheel Sensor provides accurate real-time, on-bike tire-pressure monitoring without requiring an external device to be mounted to the valve stem
• Lightweight ZR1 hubs are filled with sealed stainless steel cartridge bearings for minimal maintenance, outstanding durability, and smoother performance
• Rear freehub has a robust 6-pawl design with 66 engagement points for very rapid power transfer
• Premium stainless steel Sapim CX-Sprint spokes improve the performance of the wheel thanks to their aerodynamic profile and low weight
• Proudly made in the USA at the Zipp headquarters in Indianapolis, Indiana