zipp 404 nsw carbon wheel - tubeless - 2020 black, xdr, qr zipp zipp is known to produce road components that excel at speeding across the flats and that deliver race performance. it makes sense, seeing as the brand is born from a racing heritage that can be traced back to race car development. they applied that technology to their bicycle components, and the 404 nsw carbon wheel is no exception. we like this wheelset's ability to tackle everything from punchy climbs to speeding across the flats. its deep, 58mm rim depth means this wheelset is strong enough to handle tough races, but it's also light enough to maintain top speeds. the 404 nsw features an aerodynamic rim shape and the ability to run tubeless or traditional clincher tires. with wider tubeless tires, we like that we're able to run lower pressures, and the 404 nsw delivers a smooth ride with low rolling resistance and confidence in cornering.