Zipp 808 NSW Rear Wheel 28" SRAM XDR TLR Carbon Black

The rim shape of Zipp’s 808 NSW Tubeless rim-brake wheelset aerodynamically integrates wider tubeless tyres in an 82-mm-high rim for the most performance-oriented class of racing bike. The wheels are designed for tubeless tyres, but can also be ridden with tubes. The advantages of the tubeless system are superior puncture protection and the ability to ride with lower air pressure and greater comfort, while benefiting from a higher cornering grip and lower rolling resistance. With its 19-mm internal rim width and matching external rim shape, the 808 NSW Tubeless wheels are aerodynamically optimised for 25-mm tyres. The new decor design also makes these wheels as chic as they are fast.

Showstopper
The industry-leading silicon carbide Showstopper braking surface is constantly evolving to provide unmatched braking power and modulation, regardless of weather conditions or length of the descent.

ABLC SawTooth
The new ABLC SawTooth recess design consists of 12 branch points that are specifically time-tuned to work together in concert. The aerodynamic thrust starts at 50 Hz and a cycling speed of approx. 32 km/h. SawTooth technology makes this possible through small vortex layers that detach at a low volume but a higher natural frequency. This reduces the laminar bubble effect on the aerodynamically shielded side of the rim profile, thus enabling a further reduction in shear resistance and greater stability in crosswinds.

Cognition hubset
With the Cognition hubset’s Axial Clutch technology, they have eliminated this resistance by releasing the pawl mechanism as it slides. This allows you to approach curves at a higher speed and thus save time. A straight hub shell with star flange on the rear hub distributes the load acting on the hub flange away from the bearings. They have also developed a unique serrated design for the front hub. This serrated design provides a consistent bearing bore diameter with a high radial spoke tension. This means that the bearings sit quietly and firmly, roll faster, last longer and the hub has higher lateral stiffness.