If you need confirmation that technology is changing road bikes for the better, the 404 NSW Carbon Clincher Tubeless Disc-brake wheel leaves no doubt. Zipp’s 404 wheels – with their 58mm rim depth – are synonymous with all-around high performance. NSW technology adds to this legacy enhanced aero performance and tubeless compatibility, all with the benefits of disc brakes.

Considering Road Tubeless? Start Here

The NSW Tubeless Disc-brake wheels are aerodynamically optimized for wide tires to meet the performance needs of modern riders in search of low rolling resistance and high comfort. Throughout the development process their engineers carefully considered the rim-to-tire interface and how specific tire and rim widths affect aerodynamic performance.

Rim depth and shape along with tire selection were all carefully considered throughout the development process. The 404 NSW, with an internal width of 19mm, is optimized for smoother pavement and are aerodynamically optimized for 25mm tires. By extending their patented ABLC Sawtooth dimples all the way to the rim’s edge on each of the wheels, NSW disc brake rims deliver higher frequency wind vortex shedding for best-in-class crosswind stability.

Tubeless compatible, the 404 NSW Tubeless Disc brake features a rim bed made with internal ridges to lock the tire’s bead in place. A tubeless setup allows riders to select lower tire pressure for more comfort while reducing the risk of pinch flats. Tires such as the Zipp Tangente RT28 or RT25 Road Tubeless are a perfect match for the new wheels and deliver exceptionally low rolling resistance and high cornering grip. 

Cognition Disc Headset

Every time a conventional hubset starts to coast, friction within the freehub ratchet mechanism works like a drum brake to slow the rider down. With the Cognition Disc-brake hubset’s Axial Clutch technology, they’ve reduced this drag by disengaging the ratchet mechanism when coasting. Their testing shows that the best traditional three-pawl hub designs have twice the rotating friction as their Axial Clutch equipped Cognition rear hub, and the most popular hubsets using a similar drive mechanism as Axial Clutch were found to produce four times the rotating friction.

All NSW rims are handmade in Indianapolis, where Zipp's engineering, manufacturing, and testing are conducted and includes "The Nest" advanced development lab where NSW was born.


Technologies

ImPress - They’ve employed Zipp’s ImPress graphics technology, which prints graphics directly on the wheel, to help allow the dimples to do what they were design to do – help control vortex shedding, the rate at which air sheds off the wheel. Managing this is crucial to stability. ImPress graphics also give NSW a distinctive stealthy look.


ABLC SawTooth Technology  (Aerodynamic Boundary Layer Control) - Their new Sawtooth dimple design consists of 12 nodes that are specifically 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.


Specifications

Set Weight: 1860g

Max recommended rider weight (lbs): 250lbs

Front Wheel

Weight: 910g

Hub Used: Cognition Disc front

Brake Interface: Center locking – lock ring not included

Hub Width: 100mm

Rim Depth: 82mm

Max Width: 26.4mm

Internal Width: 19mm

Spokes: Sapim CX-Ray J-Bend

Spoke Count: 24

Spoke Pattern: 2 cross

Spoke Length Drive: 230mm / J-bend

Spoke Length Non-Drive: 230mm / J-bend

Max Tire Pressure: 125psi

Max Tire Pressure: 8.62bars

Track Adaptable: No

Dimpled Surface: Yes

Nipples: Sapim Secure Lock

External Nipples: Yes

Thru Axle Compatible: Yes

Tubeless: Yes

Rear Wheel

Weight: 950g

Hub Used: Cognition Disc rear

Brake Interface: Center locking – lock ring not included

Hub Width: 135 / 142mm

Rim Depth: 82mm

Max Width: 26.4mm

Internal Width: 19mm

Spokes: Sapim CX-Ray J-Bend

Spoke Count: 24

Spoke Pattern Non-Drive: 2 cross

Spoke Pattern Drive: 2 cross

Spoke Length Non-Drive: 226mm / J-bend

Spoke Length Drive: 230mm / J-bend

Max Tire Pressure: 125psi

Max Tire Pressure: 8.62bars

10 or 11-speed Compatible Hub: Yes

XDR Compatible: Yes

Track Adaptable: No

Dimpled Surface: Yes

Nipples: Sapim Secure Lock

External Nipples: Yes

Thru Axle Compatible: Yes

Tubeless: Yes

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