ZIPP 303 SW Tubeless Disc Wheelset The Zipp 303 SW Tubeless Disc wheelset delivers exceptional performance across any terrain, from smooth tarmac to rough gravel, cobblestones, and cyclocross courses. Building on Zipp's renowned innovation heritage, this modern classic combines versatility with cutting-edge technology. Integrated Tyre Pressure Monitoring The 303 SW features Zipp's revolutionary AXS Wheel Sensor built directly into the rim, enabling real-time tyre pressure monitoring without external valve-mounted devices. This system provides instant feedback through a simple green light indicator for pre-ride checks and continuous monitoring during rides, helping you optimise pressure for changing conditions and detect potential issues before they become problems. Advanced Aerodynamics and Performance The 40mm deep rim profile draws inspiration from the gravel-focussed 303 XPLR, incorporating a wide rim design that maximises aerodynamic efficiency and minimises rolling resistance. This wider platform creates smoother rim-to-tyre transitions, reducing drag whilst supporting modern lower-pressure riding techniques. The enhanced rim width also reduces tyre deflection, further decreasing rolling resistance for improved speed and efficiency. Enhanced Comfort and Durability The combination of wider tyres, increased air volume, and lower pressures transforms road vibrations into a smoother ride experience. Rather than transferring harsh impacts to the rider, the tyre-wheel system absorbs road imperfections, significantly reducing fatigue over long distances. An updated carbon layup delivers nearly 10% greater impact resistance whilst maintaining lightweight construction, and the refined rim shape provides additional tyre protection against pinch flats. Optimised Specifications Designed for 30-35mm tyre widths with peak performance using 35mm tyres, the 303 SW is powered by the upgraded ZR1 hubset featuring stainless steel bearings for enhanced durability and silky-smooth operation. Features Fully capable wheelset for modern road and multi-surface riders First integrated, connected SRAM AXS wheel with Zipp AXS Wheel Sensor; ability to use sensor with compatible tube ZR1 hubset with stainless steel bearings TSE for greater efficiency and reduced rolling resistance Optimized for 30 to 35mm tires Center locking rotor interface. Lockring is included with the wheels. XDR or SRAM/Shimano driver bodies Campagnolo driver body sold separately Lifetime warranty SPECIFICATIONS Size (wheels) 700c Rim construction Carbon - Hookless Tyre compatibility Tubeless tyres only Rim depth 40mm Brake compatibility Disc (Center Lock) Rim - inside width 25mm Rim profile Symmetrical Rim finish UD fibre, adhesive decals Nipple material Aluminium Spoke type CX-Sprint Spoke count 20 Spoke pattern 2 Cross Driver body type SRAM XDR, SRAM/Shimano Road Axle type (Wheels) TA 12x100, TA 12x142 Bearings Cartridge - Stainless Steel Driver Mechanism 6 Pawls, Compression Springs, n/a Max tire pressure 73psi/5.0bar Max recommended system weight 265lbs/120kg Spoke Length DS 272mm, 274mm Spoke Length NDS 276mm Weight (g) 1440 Weight Based On Lightest configuration: 12mm through axles and XDR body. Tape and valve included in weight.