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Built to Withstand Race Days and every Training Day — Zipp 2021 303 NSW Tubeless Rim Brake
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 riders jersey. It's built to take the abuse of everyday training rides, Gran Fondos, and wandering adventures.
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.
The 303 NSW Tubeless features a 19mm internal rim width and corresponding outer rim shape for aerodynamic optimization with 25mm tires. This wheelset allows you to run tubeless or traditional clinchers.
The benefits of tubeless include superior flat protection, the ability to run lower pressures, and a smoother ride with high cornering grip and low rolling resistance.
New Zipp graphics and cosmetic identity that scream speed. Applied using Zipp's ImPress™ direct-print technology
Versatile 45mm rim profile for increased speed and better cornering, control and comfort
Tubeless design provides secure performance when ridden at lower tire pressures
Cognition hub features Axial Clutch™ technology to allow the freehub's ratcheting mechanism to deliver half the mechanical drag of conventional three-pawl hubs
Showstopper™ textured brake track delivers the best modulation and shortest stopping distances in wet and dry conditions
XDR™ or SRAM/Shimano driver bodies
Ships with QR end caps, quick release skewers
Campagnolo driver body sold separately
FREE Cassette Installation - Order a cassette along with a wheelset and we can install the cassette for free. Cassette installation requires special tools that not all our customers have. The cassette will be professionally installed and torqued to spec. Just add "Please install cassette" to your order notes at checkout and we'll take care of you.
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