The 404 NSW wheelset stands up pretty tall, relative to its peers, in the mid-depth aero wheelset field. Adding tubeless compatibility and disc brakes, as featured on this version of the tubeless 404 NSW Carbon Disc Brake Road Wheel has done, takes it over the top. It's an all-out race wheelset where its disc brake ability and reliable carbon layup allows it to venture off the beaten path. Tubeless capabilities extend its versatility since tubeless tires can roll at lower pressure for a more comfortable ride, better traction, and less rolling resistance both offroad and on. Adding a bit of sealant to the tires can seal up small punctures before you know it and allows you to explore roads on a road bike that you would have never imagined just a few years ago. Despite the advancements to the rim, which is the element of the wheel that Zipp's tagline of "Speed Weaponry" is typically associated with, we're going to start here with the Cognition hub. Blasphemy, we know, but the Cognition makes a strong case for itself. We'd even go so far to suggest that the NSW's Cognition rear hub may be the most exciting innovation we've seen in factory wheels since Zipp first introduced its bulging sidewalls. The hub owes its sex appeal to Zipp's Axial Clutch freewheel design, which features two Metal Injection Molding (MIM) ratcheting rings--one mated to the freehub body and one mated to the hub body. The two rings are machined like a ratchet, so they ramp off of each other while freewheeling but engage each other during pedal input. Compared to a standard pawl design, which actually resembles a drum brake and engages from the inside out, the Axial Clutch's MIM rings engage laterally to reduce friction, so the engagement mechanism itself doesn't tax as many watts from your efforts. We're familiar with this model, as we've seen similar mechanisms on the designer hubs featured in top-end custom builds for years now, but Zipp is the first to replace the usual tensioning agent, stee...
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Zipp 404 NSW Carbon Disc Brake Road Wheelset - Tubeless
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