ZIPP 454 NSW Carbon CL Disc Tubular road front wheel 12 x 100 mm

Our top road pros demanded we offer the revolutionary Zipp 454 NSW as a Tubular, so we made it just for them… and for you! The 454 NSW Tubular Disc-brake wheelset brings together the advanced aerodynamics and stability of its biomimicry-derived Sawtooth™ rim profile with the benefits of disc braking. This wheelset was developed for professional racers as well as cyclists who prefer the time-proven ride qualities of riding tubulars with cutting-edge aero technology. Utilizing the principles of the emerging science of biomimicry, Zipp engineers studied the environment around them for instances of how nature achieved speed, control, and efficiency. A humpback whale’s fast and graceful movements thanks to the 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. The 454 NSW’s Cognition DB V2 Hubset is re-engineered with Axial Clutch V2™ for quicker engagement and lower friction Every time a conventional hubset starts to coast, friction within the freehub ratchet mechanism works like a drum brake to slow the rider down. The drag between the hub shell and driver body during coasting is considered as efficiency loss, especially for road wheels. The solution? The rear Cognition V2™ hub with AxialClutch V2™ technology reduces drag by disengaging the ratchet mechanism when coasting. The AxialClutch V2’s™ wave spring acts to re-engage the ratchet mechanism quickly and consistently once the rider starts pedaling. The hubset also is lightweight and durable. Features: - A cosmetic identity that screams speed, Zipp graphics applied using Zipp’s ImPress™ direct-print technology - Cognition DB V2 hubset rolls efficiently whether you are pedaling or coasting. Its Axial ClutchV2™ technology reduces drag and lowers friction - 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 Specifications: - Size (wheels): 700c - Rim Construction: Carbon - Hub: Cognition 2 - Tire Compatibility: Tubular - Rim Depth: 58mm - Brake Compatibility: Disc (center Lock) - Rim Finish: Ud Fiber, Impress Technology - Rim Profile: Symmetrical - Spoke Length Ds: 248mm, 254mm - Spoke Length Nds: 252mm, 254mm Technology: 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. Aerobalance: - Zipp’s sole mission is to help you go faster. That´s why our wheels are race-ready before they´re camera-ready. For years, Zipp has used a combination of testing methods – wind tunnel, CFD computer simulations, pro athlete evaluations, on-road testing, and the RollingRoad ride simulator – to refine aero performance to new levels of excellence. Over the decades of innovation, our engineers have learned to look beyond just focusing on simply reducing aero drag. Instead, the goal now is to reduce aero drag while also minimizing the effects of crosswinds on handling. This optimizing of aero efficiency and crosswind stability became known internally at Zipp as AeroBalance. The approach began with Firecrest technology and has been advanced with the introduction of the NSW lineup, especially with the Sawtooth technology found in the 454 and 858 NSW. 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. XDR: - The XDR driver body is a universal mounting system for cassettes that incorporate cogs with fewer than 11 teeth. It allows for lighter and more versatile drivetrains without requiring new rear axle standards, cassette tools or hub redesigns. The XDR interface is 1.85mm longer than XD and is designed for road hub applications. XDR driver bodies are compatible with all XD cassettes when the cassette is installed with a 1.85mm spacer. Ablc Sawtooth: - ABLC Sawtooth dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheel. 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.