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Zipp 303 NSW Carbon Clincher Tubeless Cognition Rim-Brake Rear Wheel

Zipp 303 NSW Carbon Clincher Tubeless Cognition Rim-Brake Rear Wheel
Spoke Count:
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Light enough to fly up climbs, tough enough to excel in the cobbled classics, and with the industry’s best available braking performance for the most technical descents, the 45mm deep 303 NSW is built for a singular purpose: To be fast, everywhere. But the 303 NSW is no ‘race day only’ wheelset to be tucked away in a wheel bag until a race number is pinned to the rider’s jersey. It’s built to take the abuse of everyday training rides. Zipp has achieved this reliability at a lighter weight with a revised carbon fiber layup developed through testing on the famed cobbles of the Arenberg Forest with the world’s fastest riders.

- Tubeless
- COGNITION hubset
- Axial Clutch technology
- ABLC SawTooth
- Showstopper
- Faster, more stable AeroBalance rim profile
- Handcrafted in the USA


Rim Material Carbon
Brake Compatibility Rim brake
Axle QR
Rim Depth 45mm
Inner Rim Width 19mm
Hub Cognition
Spokes CX-Ray - Black
Spoke Count 24
Lacing 2 Cross
Nipples Aluminum

* Subject to change without notice.

Part Numbers

Option UPC MPN
QR / Campagnolo / Impress / 700c / 24 710845819506 00.1918.386.001
QR / Shimano/SRAM / Impress / 700c / 24 710845819490 00.1918.386.000
QR / SRAM XDR / Impress / 700c / 24 710845819742 00.1918.386.005