Zipp 404 NSW V1 Disc Brake Tubeless Carbon Clincher Rear Wheel Black (Shimano/SRAM)

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The 404 NSW Carbon Clincher Tubeless Disc-brake wheel is all the confirmation you need that technology is changing road bikes for the better. Zipp’s 404 wheels, with their 58mm rim depth, are long associated with all-around high performance. NSW technology adds to this reputation through enhanced aero performance and tubeless compatibility, all with the benefits of disc brakes.

The new NSW Carbon Clincher 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 our engineers took into account the rim-to-tire interface and how specific tire and rim widths affect aerodynamic performance.

The depth and shape of the rim along with tire selection were crucial inputs throughout the development process. The 404 NSW, with an internal width of 19mm, is optimized for smoother pavement and is aerodynamically optimized for 25mm tires. By extending our patented ABLC™ Sawtooth™ dimples all the way to the rim’s edge on each of the wheels, the NSW disc brake rim delivers 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 corning grip.

To ensure our exacting manufacturing standards are met, all NSW rims are handmade in Indianapolis.

Cognition Disc Hubset
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, we’ve reduced this drag by disengaging the ratchet mechanism when coasting. Our testing shows that the best traditional three-pawl hub designs have twice the rotating friction as our 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.

We’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)
Our 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 32km/hr. 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.
• Weight: 840g
• Hub Used: Cognition Disc rear
• Brake Interface: Centre locking – lock ring not included
• Hub Width: 135 / 142mm
• Rim Depth: 58mm
• 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: 248mm / J-bend
• Spoke Length Drive: 254mm / J-bend
• Max Tire Pressure: 125psi
• Max Tire Pressure: 8.62bars
• 10 or 11-speed Compatible Hub: Yes
• XDR Compatible: Yes (driver sold separately)
• Track Adaptable: No
• Dimpled Surface: Yes
• Nipples: Sapim® Secure Lock J-Bend
• External Nipples: Yes
• Thru Axle Compatible: Yes
• Tubeless: Yes
• Maximum recommended rider weight: 113kg

Each Wheel Includes:
• Zipp Tangente Quick Release Skewer
• Zipp Tubeless valve
• Tubeless rim tape
• Valve core removal tool
• Zipp Cognition thru-axle caps to fit 12x142mm dropouts, QR end caps are installed
• Zipp Cognition oil – for rear hub service
• Freehub body spacer – 11 to 10 speed
SKU# ZP001918376000
Package ID: International_Oversize