Discover the latest in road wheels from Zipp at Escapa. The Zipp 303 Tubeless Disc Rear Wheel 12x142 40mm 700 AXS Sensor delivers performance on all types of roads thanks to the tire pressure control integrated into the wheel via the SRAM AXS connection. It offers superior speed on all types of roads, regardless of the surface. Inspired by Zipp’s legacy of innovation, the 303 SW is a modern take on a classic wheelset, fully suited for road, gravel, cobblestones, and cyclocross.
Better
The 303 SW rim features the Zipp AXS wheel sensor integrated internally for precise tire pressure monitoring on the bike. It allows you to monitor and analyze tire pressure in real time without an external device mounted on the valve stem.
Adjusting tire pressure helps riders optimize speed and performance in an ever-changing riding environment. Before setting out, check your tire pressure right away; a green light means you’re ready to go.
During your ride, control tire pressure to adjust it to your ideal settings and detect issues early. The 303 SW’s 40 mm-deep rim design is inspired by the Gravel-specific 303 XPLR and utilizes wide tires for high aerodynamic efficiency and low rolling resistance on a wide tire platform, designed for modern riding with lower tire pressures.
Aerodynamics
The rim profile provides low aerodynamic drag and a smoother transition between the rim and the tire, which increases aerodynamic efficiency with wider tires. The wide-rim design also results in less tire deflection, reducing rolling resistance. The combination of a wider tire, greater volume, and lower tire pressure helps reduce rider fatigue by smoothing out the ride on pavement and rough roads: the tire-and-wheel system absorbs vibrations, not the rider.
A revised carbon layout and design also gave the already foolproof 303 SW a nearly 10% improvement in impact resistance while maintaining its lightweight profile. The 303 SW is optimized for tires 30 to 35 mm wide. The 303 SW’s rims feature a refined shape that helps protect the tire during an impact that would otherwise cause a flat. At the heart of it all is the ZR1 hub, which now features stainless steel bearings for greater durability and smoother performance.
