Zipp 303 NSW Carbon Clincher - Rear

Product Reference: ZP303NSWCCR
  • Now £1,220.40
  • Zipp 303 NSW Carbon Clincher Rear wheel: High performance carbon all rounder
  • Semi-deep section 45mm carbon rim
  • Zipp Cognition rear hub
  • Sapim CX-Ray spokes with Secure Lock nipples
  • 24 spoke 2-cross lacing pattern
  • ABLC Sawtooth aerodynamic dimpling technology
  • Showstopper resin coating brake track
  • 785g weight
| In Stock

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 Zipp 303 NSW Carbon Clincher Rear wheel 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.

With the Cognition™ hubset's Axial Clutch™ technology, Zipp have reduced this drag by disengaging the ratchet mechanism when coasting. So you can approach corners at higher speeds, and ultimately, save time. A star-flanged straight-pull hubshell design on the rear hub distributes the load placed on the hub flange away from the bearings. The new Sawtooth dimple design consists of 12 nodes that are precisely clocked to start aerodynamic shearing at a rate of 50hz at a rider speed of 20mph. Sawtooth accomplishes this by inducing small sheet vortices that shed at a low magnitude, but at a higher natural frequency, thus decreasing the laminar bubble effect on the aerodynamically shielded side of the rim's profile to further reduce high yaw drag and improve crosswind stability. That crosswind stability imparts peace of mind in gusty wind conditions while saving watts that would have been expended while attempting to hold your line.

When it comes to braking, “good for a carbon rim” wasn't good enough for 303 NSW. Zipp wanted braking performance that was better than aluminum rims and any other carbon rim, and we've achieved that goal. The industry leading silicon carbide Showstopper™ brake track delivers unmatched stopping power and modulation regardless of weather conditions or the length of the descent. With Showstopper braking performance, you'll need to find another excuse not to ride on rainy days.

From hub, to rim and everywhere in between, the new Zipp 303 NSW Carbon Clincher Rear wheel is the perfect upgrade for riders wanting an extra level of performance on every plane.


  • Weight: 785g
  • Hub Used: Cognition
  • Rim Used: X45NSW
  • Rim Depth: 45mm
  • Brake Track Width (center): 26.40mm
  • Internal Width: 17.25mm
  • Spokes: Sapim® CX-Ray
  • Spoke Count: 24
  • Spoke Length Non-Drive: 270mm
  • Spoke Pattern Non-Drive: 2 Cross
  • Spoke Pattern Drive: 2 Cross
  • Spoke Length Drive: 268mm
  • Max Tire Pressure: 125psi
  • Max Tire Pressure: 8.62bars
  • 11-speed compatible hub: Yes
  • XDR Compatible: Yes
  • Track Adaptable: No
  • Dimpled Surface: ABLC™ SawTooth™
  • Nipples: Sapim® secure-lock
  • External Nipples: Yes
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