This wheel delivers everything the performance cyclist demands. It’s aerodynamically efficient and stable in all wind conditions. What’s more, a wider rim is designed for tubeless tires at lower pressure for reduced rolling resistance and vibration damping, so you’ll lose as little energy as possible out on the road.

For best combination of aerodynamics and rolling resistance gains a 28mm tire is recommended on this wheel. While 25mm tires offer a small aerodynamic gain, the losses in rolling resistance from a 28mm tire outweigh the aero gain. Therefore for best performance ride a 28mm tire.

The 454 NSW features Zipp’s most advanced technologies. Its undulating 58mm Sawtooth™ rim shape with Hyperfoils™ is our most aerodynamic and stable wheel. The 454 NSW features Zipp’s Total System Efficiency™ (TSE™), our approach at combatting the biggest enemies of speed: wind resistance, gravity, rolling resistance, and vibration losses. And gravity? The 454 NSW Tubeless Disc brake is roughly a pound (more than 400 grams) lighter than its predecessor! Zipp’s use of hookless (straight side) rims in the 454 NSW is integral to Making You Faster. With hookless, the transition between the tire and the rim is more seamless and aero. Zipp’s hookless rims have more efficient resin distribution, which means lighter, stronger wheels. At the center of the 454 NSW is the Cognition V2 Hubset re-engineered with an updated Axial Clutch V2™ mechanism for quicker engagement, lower friction, and improved durability.

This wheel is only compatible with certain models of tire due to the hookless feature. Please refer to their guide for what tires will work with this model. 

Zipp's products are also covered under their lifetime warranty. So that means all wheels, handlebars, stems, seatposts come with a lifetime warranty for product issues while riding. The lifetime warranty is not transferrable and proof of purchase is required.

Size: 700c 

Rim Construction: Carbon Hookless

Hub: Cognition V2

Tire Compatibility: Tubeless tires only

Rim Depth: 58mm

Brake Compatibility: Disc (Center Lock)

Driver Body Type: n/a, SRAM XDR, SRAM/Shimano Road

Rim - Inside Width: 23mm

Max Recommended System Weight: 250lbs/114kg

Max Tire Pressure: 73psi/5.0bar

Rim Finish: UD fiber, Impress technology

Rim Profile: Symmetrical 

Spoke Length DS: 248mm, 254mm

Spoke Length NDS: 252mm, 254mm

Weight (G): 1428g

Weight Based On: Estimated lightest weight for a wheelset configuration: 12mm through axles and XDR body. No tape or valve in weight.

Axial Clutch

With Cognition’s Axial Clutch technology, we’ve reduced this drag by disengaging the ratchet mechanism when coasting. With less internal hub drag a rider can pedal less when drafting in a headwind, achieve higher speeds when coasting in an aero tuck, or opt to stop pedaling a moment sooner before entering a corner and bank that wattage for use exiting the corner. Axial Clutch technology also allows riders to maintain speed through corners that don’t require braking input, thereby increasing corner exit speeds.

Inside the Axial Clutch mechanism we use magnets, rather than steel springs, to move and engage our light weight Metal Injection Molded (MIM) ratchet rings for unmatched reliability and consistent operation. With 36 points of engagement that all interlock simultaneously, there isn’t a more secure freehub mechanism on the market.