Zipp 858 NSW: Radical by design. Evolutionary by nature.

858 NSW® CARBON CLINCHER DISC BRAKE & RIM BRAKE

Whether you are a triathlete or a road rider looking for the ultimate in aero performance, the 858 NSW is engineered to make the impossible… possible. Its advanced AeroBalance and handling performance changes the way we think about aero-wheel selection. By minimizing concerns over control, the 858 NSW ushers in a new era where aerodynamically efficient deep-section wheels are no longer reserved only for ideal racing conditions—the 858 NSW is an every-condition race wheelset.

THE DESIGN

Utilizing the principles of biomimicry, Zipp engineers studied the environment around them for instances of how nature solved similar problems of speed, control, and efficiency for the next generation of Zipp wheels.

Inspired by the irregular shape of the leading edge of humpback whale pectoral fins, which help provide this giant creature with speed and manoeuvrability, our engineers began developing wheels that used similarly shaped nodes along the inner circumference of the rim. The product of years of research and hundreds of hours in the wind tunnel, the resulting Sawtooth rim shape delivers aerodynamic efficiency and crosswind stability that far surpasses what is possible with conventionally shaped wheels.

The undulating 82mm to 77mm deep Zipp 858 NSW applies the same biomimicry-derived Sawtooth rim technology found in our groundbreaking 454 NSW to deliver newfound levels of both speed and control, what we call AeroBalance.

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The lower aerodynamic drag and additional crosswind stability available from the Sawtooth design is amplified on deeper section wheels for even greater gains in both performance and rider confidence. This allows riders to remain in their aero position longer, as well as save energy when riding in crosswinds; energy that would have been expended trying to keep the bike going in a straight line with a conventional wheel. That energy can now be used to propel the bike to higher speeds. Moreover, the confidence inspiring stability of the 858 NSW leaves a rider’s mind free to fully focus on the task at hand: Putting power to the pedals.

The 858 NSW achieves this aerodynamic performance through high-frequency wind vortex shedding. Lower frequency shedding produces larger, more powerful vortices. In cycling terms, this unstable situation is often referred to as “buffeting.” The 858 NSW’s undulating Sawtooth rim architecture with HyperFoils and HexFin ABLC dimples help to stabilize handling in gusting wind by increasing wind vortex shedding frequency. The higher frequency vortex shedding produced by these structures creates an increased number of smaller, less powerful, yet more predictable vortices leading to greater wheel stability. And whether you are riding in a crosswind or not, the Sawtooth rim design of the 858 NSW also delivers a laterally stiffer, lighter, more nimble wheel that accelerates up to speed faster for improved handling in any riding condition.

 

858 NSW Carbon Clincher Disc Brake

  • 1,834g wheelset total weight
  • 850g front weight
  • 984g rear weight
  • 77mm / 82mm rim depth
  • 23.7mm max width
  • 17mm internal width
  • 24 front / 24 rear spoke count
  • Brake Interface: Center locking  (lock ring not included)
  • Sapim® secure-lock nipples
  • Sapim® CX-Ray® J-Bend spokes
  • Cognition Disc hubset
  • Thru-axle compatible
  • XDR compatibleFront wheel: £1,695    Rear wheel: £2,035Available from: November 2017

 

858 NSW Carbon Clincher Rim Brake

  • 1,750g wheelset total weight
  • 808g front weight
  • 942g rear weight
  • 77mm / 82mm rim depth
  • 24.4mm max width (front)
  • 23.7mm max width (rear)
  • 17mm internal width
  • 18 front / 24 rear spoke count
  • Brake Interface: ShowstopperTM
  • Sapim® secure-lock nipples
  • Sapim® CX-Ray®
  • Cognition hubset
  • XDR compatibleFront wheel: £1,695    Rear wheel: £2,035Available from: November 2017

 

You can find out more about the Zipp 858 NSW by clicking here