303 SW Carbon Wheelset with Wheel Sensors

The 303 SW represents Zipp's contemporary approach to versatile road and multi-surface performance, engineered for modern riders demanding capability across tarmac, gravel, cobbles, and cyclocross terrain.

The defining innovation is the integrated Zipp AXS Wheel Sensor embedded within the rim, enabling real-time tyre-pressure monitoring without external valve-stem devices, allowing pre-ride verification and dynamic pressure optimisation during riding. 

The 40mm carbon hookless rim features a generous 25mm internal width, drawing design principles from the gravel-focused 303 XPLR to enhance aerodynamic efficiency and reduce rolling resistance whilst supporting wider tyres at lower pressures for improved compliance.

Enhanced carbon layup delivers approximately 10% greater impact resistance whilst maintaining lightweight construction, with optimised geometry for 30–35mm tyres and pinch-flat protection. The updated ZR1 hubset incorporates stainless steel cartridge bearings for extended durability and refined engagement.

Features

• Fully capable wheelset for modern road and multi-surface riders
  
• Integrated, connected SRAM AXS wheel with Zipp AXS Wheel Sensor
  
• Ability to use sensor with compatible tube
  
• TSE for greater efficiency and reduced rolling resistance
  
• Optimised for 30 to 35mm tyres (best performance with 35mm tyres)
  
• ZR1 hubset with stainless steel bearings
  
• Centre Lock rotor interface (lockring included)
  
• XDR or SRAM/Shimano Road driver bodies available
  
• Campagnolo driver body sold separately
  
• Lifetime warranty

Specifcations

Size (wheels): 700c
Rim construction: Carbon – Hookless
Tyre compatibility: Tubeless tyres only
Rim depth: 40mm
Brake compatibility: Disc (Centre 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
Max tyre pressure: 73psi / 5.0bar
Max recommended system weight: 265lbs / 120kg
Spoke length DS: 272mm, 274mm
Spoke length NDS: 276mm
Weight: 1440g

Weight based on lightest configuration: 12mm through axles and XDR body. Tape and valve included in weight.