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    • Zipp 454 NSW Clincher Disc Road Wheelset

  • Zipp 454 NSW Clincher Disc Road Wheelset

    This Zipp 454 NSW Clincher disc brake wheelset offers cyclists an excellent aerodynamic balance, cross-wind stability and immense stopping power with disc brake compatibility. Sporting a rim design that has been loaded with the latest in Zipp's racing technological advances, the added aerodynamic finesse and drag reduction leads to exceptional rider stability and a more efficient power transfer to the road.

    Breakthrough Magnetised Hubset

    At the heart of these 454 NSW wheels is Zipp's Cognition hubset which comfortably rides the cutting edge in hub design. Whereas a conventional hub effectively functions as a drum brake once the rider stops pedalling and begins to coast, the Cognition hubs disengage the ratchets via powerful internal magnets, effectively putting the bike in neutral gear. The moment you rotate the pedals forward, the ratchet re-engages and applies your power instantly.

    Features:

    • Hub Model: Cognition Disc
    • Hub Width (O.L.D.): 100mm
    • Brake Standard: Disc Brake specific
    • Rim: Clincher
    • Rim Internal Width: 17mm
    • Rim Depth: 53/58mm
    • Spokes: Sapim CX-Ray J-Bend
    • Spoke Hole Count: 24 Hole
    • Spoke Pattern: 2-cross
    • Spoke Length Drive Side: 252mm
    • Spoke Length Non-Drive Side: 254mm
    • Max Tyre Pressure: 125psi / 8.62bars
    • Dimpled Surface: ABLC HexFin
    • Nipples: Sapim Secure-Lock
    • Thru Axle Compatible: Yes
    • Weight: 765g (front), 850g (rear)

    Technology:

    • SawTooth: The name given to the Zipp NSW variable depth 53/58mm 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.
    • Hexfin Aerodynamic Boundary Layer Control (ABLC): 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.
    • Hyperfoil: This technological design refers to the individual nodes that are part of the Sawtooth rim design. Each of these structures features 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.
    • Cognition: 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 an 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.

    Buy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

    Spezifikationen

    • Farbe: Schwarz
    • Radgröße: 700c
    • Option: Shimano
  • sparen Sie 3%
    UVP €4080.49
    €3950.49 3950.49
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    Schwarz
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    Shimano
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    700c
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