303 SW Rear Wheel - 700 12 x 142mm Center-Lock XDR Tubeless Carbon w/ Wheel Sensor A1

Built for speed on any surface, the Zipp 303 SW is your go-to wheelset for road, gravel, cobbles, and cyclocross.

It features Zipp’s integrated AXS Wheel Sensor, letting you monitor tire pressure in real time—no valve-mounted devices needed. Check before you ride (green means go) and stay dialed in as conditions change. Inspired by the 303 XPLR, the 40mm-deep rim uses a wide design for better aerodynamics and lower rolling resistance with wider tires. The result? A smoother, faster ride with less fatigue. The improved carbon layup increases impact strength by nearly 10%, while keeping weight low. Optimized for 30–35mm tires (best with 35mm), the rim shape helps prevent pinch flats and improves tire-rim integration. At the core is the updated ZR1 hubset with stainless steel bearings for smoother, longer-lasting performance.

• Fully capable wheels 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
• UD Carbon, hookless rim construction, 40mm depth with ABLC SawTooth Dimples to provide low aerodynamic drag and crosswind stability
• ZR1 disc brake hub with stainless steel bearings, CX-Sprint spokes
• TSE for greater efficiency and reduced rolling resistance
• Optimized for 30 to 35mm tires, compatible with tubeless tires only
• Center locking rotor interface. Lockring is included with the wheels

SPECS

• Hub/Brake Compatibility: Center-Lock Disc
• Color: Carbon
• Wheel Size: 700c
• Cassette Body Type: SRAM XDR
• ISO Diameter: 622 / Road / 29"
• Rear Axle: 12mm Thru x 142mm
• Valve: Presta
• Rim Width (Internal): 25
• Defined Color: Carbon
• Rim Material: Carbon
• Tire Type: Tubeless Ready