Zipp 454 NSW clincher disc Centerlock tubeless wheel

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  • 454 NSW Carbon Tubeless Disc-brake

    Zipp’s ultimate all-around speed weapon is now tubeless ready. That means you get all of the aero advantages of the 454 NSW Tubeless Disc-brake wheelset with the added benefit of increased cornering grip and compliance with reduced rolling resistance. The wheelset’s 19mm internal width is optimized for running wider tubeless tires at reduced air pressure. The 454 NSW’s undulating 53/58mm-deep rim shape, our proprietary Sawtooth profile, takes design cues from nature for our highest performing wheel when it comes to aero efficiency and crosswind stability. A humpback whale’s fast and graceful movements are aided by tubercles on its pectoral fins. These structures inspired Zipp advanced development engineers to, for the first time, systematically apply biomimicry to solve the complex challenge of designing a wheel, with the undulating Hyperfoil nodes, that reduces both aerodynamic drag and side force. Combined that with tubeless compatibility and the power of disc brakes, and you are set for the ultimate in Zipp performance.

    • New Zipp graphics and cosmetic identity that screams speed, applied using Zipp’s ImPress direct-print technology.
    • 19mm internal width and tubeless compatibility for optimization of wider tires with lower tire pressure
    • Cognition DB hubset rolls efficiently whether you are pedaling or coasting. Its Axial Clutch technology allows the freehub’s ratcheting mechanism to deliver half the mechanical drag of conventional three-pawl hubs.
    • Sawtooth rim with Hyperfoil nodes and HexFin ABLC dimple pattern for top aero and crosswind-stability performance with an undulating 53/58mm rim depth
    • Center locking rotor interface. Lockring is included
    • XDR or SRAM/Shimano driver bodies
    • Ships with 12mm front and rear end caps
    • Campagnolo driver body sold separately


    Technology

    Cognition Hubset
    With the Cognition hubset’s Axial Clutch technology, we’ve reduced this drag by disengaging the ratchet mechanism when coasting. So you can approach corners at higher speeds, and ultimately, save time. A star-flanged straight-pull hubshell design on the rear hub distributes the load placed on the hub flange away from the bearings. We’ve also developed a unique scalloped edge hubshell design for our front hub. This scalloped design maintains the bearing bore diameter when high radial spoke tension is applied. That means you get bearings that quietly stay in place, roll faster, last longer, and provide a laterally stiffer hub.

    ImPress
    We’ve employed Zipp’s ImPress graphics technology, which prints graphics directly on the wheel, to help allow the dimples to do what they were design to do – help control vortex shedding, the rate at which air sheds off the wheel. Managing this is crucial to stability. ImPress graphics also give 808 NSW a distinctive stealthy look.

    SawTooth

    SawTooth is the name given to Zipp NSW’s patented variable depth 53/58mm rims. Developed utilizing the principles of the emerging science of biomimicry, Zipp engineers began the rigorous aero development process of SawTooth utilizing the wind tunnel, CFD, and real-world testing. The result is a rim shape that takes nature’s most elegant design solutions and combines engineering precision to deliver a wheel that performs unlike any made before.

    This patented new rim shape achieves something conventional aero wheels cannot; it simultaneously reduces both aerodynamic drag and side force for the ultimate in AeroBalance. Sawtooth accomplishes this with a series of patented fin-shaped Hyperfoil nodes along the inner diameter of the rim that work together with our new HexFin ABLC dimples for improved airflow. The result is Zipp’s highest performing wheelset ever realized with both aero-drag reduction and reduced side force at all wind yaw angles. This is important because higher wind yaw angles are where bike handling is most affected by the wind.

    Axial Clutch
    With Cognition’s Axial Clutch technology, we’ve reduced this drag by disengaging the ratchet mechanism when coasting. With less internal hub drag a rider can pedal less when drafting in a headwind, achieve higher speeds when coasting in an aero tuck, or opt to stop pedaling a moment sooner before entering a corner and bank that wattage for use exiting the corner. Axial Clutch technology also allows riders to maintain speed through corners that don’t require braking input, thereby increasing corner exit speeds.

    Inside the Axial Clutch mechanism we use magnets, rather than steel springs, to move and engage our light weight Metal Injection Molded (MIM) ratchet rings for unmatched reliability and consistent operation. With 36 points of engagement that all interlock simultaneously, there isn’t a more secure freehub mechanism on the market.

    Specifications
    • Size: 700c
    • Rim construction: Carbon w/Hooks
    • Tire compatibility: Clincher or Tubeless tires
    • Brake compatibility: Disc (Center Lock)
    • Driver body type: SRAM XDR, SRAM/Shimano Road
    • Rim inside width: 19mm
    • Rim finish: UD fiber, Impress technology
    • Rim profile: Symmetrical
    • Weight: 1815g (weight based on: lightest configuration, 12mm through axles and XDR body. No tape or valve included in weight. Front: 860g Rear: 955g)
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This item is crafted in the U.S.