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Featuring a rim depth of 77mm, which slices through the air and effectively reduces air-drag. Unlike most other competitors wheel options in this wheel depth, the 858 NSW features exceptional crosswind stability and precise handling thanks to the Zipp Sawtooth and Hexfix technology.
This wheel is also equipped with the Cognition Disc hub, it has all the rolling performance and stability enhancements of wheels that have a much shallower profile, and now the braking excellence of modern disc brakes. This ultra-stiff, flex-free, lightweight, supreme performing is a true all-rounder and is not restricted to the ideal racing conditions that most other wheels in this class are restricted to.
The ultimate in Zipp hub technology. Every time a conventional hub set starts to coast, friction within the freehub ratchet mechanism works like a drum brake to slow the rider down. The drag between hub shell and driver body during coasting is considered as efficiency loss, especially for road wheels. High drag also can significantly contribute to chain-dropping issues. The drag torque drives the cassette clockwise so the chain gets loose on the load side. The solution? The rear Cognition hub with AxialClutch technology reduces drag by disengaging the ratchet mechanism when coasting. It then uses magnets to re-engage once the rider starts pedalling.
The name given to the Zipp NSW variable depth 77/82mm rim profile. This design is the result of rigorous wind tunnel and real-world testing. The rim shape takes natures elegant design solutions and combines their precise engineering finesse to deliver a wheel that performs like nothing else before.
This technological design refers to the individual nodes that are part of the Sawtooth rim design. Each of these structures feature the Hexfin ABLC dimples that stabilise handling in gusting and strong wind conditions by increasing wind vortex shedding. The dimples create a secondary vortex around the outer rim surface, which in turn heightens the wheel control and saves rider energy from being wasted.
The 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 20mph. 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.
Estaremos encantados de reembolsarte el valor de cualquier artículo comprado en Wiggle si nos lo devuelves en un plazo de 365 días, a excepción de los vales regalo de Wiggle, de los productos de nutrición y de los artículos personalizados, a menos que sean defectuosos.
Nota importante: la devolución de bicicletas y otros artículos voluminosos seguirá un proceso diferente. Por favor, ponte en contacto con nuestro equipo de Atención al Cliente para acordar la recogida del producto. Ten en cuenta que este servicio de recogida conlleva una tarifa, a no ser que se trate de un artículo defectuoso.
Los artículos devueltos deberán encontrarse en su embalaje original y no haber sido usados, a menos que los artículos sean defectuosos.