Zipp 454 NSW B1 Tubeless Disc Brake 700c Rear Wheel Sram XDR Freehub

Zipp’s 454 NSW Tubeless Disc-brake is the ultimate road racing wheelset. 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.

This wheel is optimized for 28mm tubeless tires for all out speed. 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 combating 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.

SPEC

Orientation (wheels): Rear

Size (wheels): 700c

Rim construction: Carbon – Hookless

Tire compatibility: Tubeless tires only

Rim depth: 58mm

Surface texture: ABLC HexFin

Brake compatibility: Disc (Center Lock)

Rim -inside width: 23mm

Rim profile: Symmetrical

Rim finish: UD fiber, Impress technology

Nipple material: Aluminum

Nipple anti-rotation: Sapim Secure-Loc

Spoke type: CX-Ray – Black

Spoke count: 24

Spoke pattern: 2 Cross

Hub: Cognition 2

Driver body type: SRAM XDR freehub

Axle type (Wheels): TA 12×142

Axle material: Aluminum

Bearings: Cartridge – Stainless Steel

Driver Mechanism: Axial Clutch V2, 54 POE

Driver body material: Aluminum

Max tire pressure: 73psi

Max recommended rider weight: 250lbs

Spoke Length DS: 248mm

Spoke Length NDS: 254mm

Max outside width: 28mm