303 SW Carbon Wheelset The Zipp 303 SW Carbon Wheelset is built for speed and control across every surface, from smooth roads to rough gravel and cobbled sections. This tubeless disc-brake wheelset blends cutting-edge technology with all-road versatility, making it a standout choice for performance-driven riders. Zipp’s integrated AXS Wheel Sensor sits inside the rim and provides real-time tyre pressure monitoring. Riders can check their pressure before setting off and track it throughout the ride without any external sensors. This smart system helps maintain ideal tyre pressure for better speed, handling and overall efficiency. The 40mm deep rim draws from the gravel-ready 303 XPLR, using a wide internal profile that supports larger tyre volumes and improves aerodynamics. The improved rim shape smooths the airflow transition between tyre and rim, resulting in reduced drag and rolling resistance. Engineered to run tyres between 30 and 35mm, the 303 SW improves rider comfort by minimising vibrations and absorbing bumps. A revised carbon layup strengthens the rim while keeping weight low, and the updated shape helps prevent pinch flats during hard impacts. At the centre, the ZR1 hubset with stainless steel bearings ensures long-lasting, smooth performance.