Ruota posteriore Zipp 404 NSW clincher in carbonio AW17Marca:
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Su www.chainreactioncycles.com trovi Ruota posteriore Zipp 404 NSW clincher in carbonio AW17 a prezzi convenienti. Ruota posteriore Zipp 404 NSW clincher in carbonio AW17 è disponibile nelle misure 700c.Wheels Zipp. Wheels Nero. Wheels misura 700c.
Zipp 404 NSW Full Carbon Clincher Rear WheelThe Zipp 404 NSW Full Carbon Clincher is designed to provide exceptional stiffness, rolling performance and aerodynamic efficiency for Triathletes and Time Trial riders. With a rim depth of 58mm, the 404 NSW wheel design is the ultimate all-rounder. Providing awe-inspiring climbing prowess and is more than capable of maintaining speed on the flats; it is strong enough to handle race events across cobbled streets, but is light enough to inspire rider confidence when sprinting out of corners Highly Advanced, Simple to MaintainThe 404 NSW rear wheel features a Zipp Cognition hub that is equipped with an AxialClutch mechanism, which is unique to Zipp. A clutch being put in place of a standard freehub pawl engagement means that when you are free-coasting there is no engagement whatsoever; meaning effectively you are rolling in neutral gear and no wattage is lost. The instant you rotate the pedals slightly, the magnets within the hub pull the clutch back into engagement and power-transfer resumes as normal. It may sound complex for a bicycle, but the beauty is that although this is highly advanced technology it is incredibly simple to maintain Advanced AerodynamicsThis wheel features among the most advanced aerodynamics in the world of road cycling, developed using 42 different CFD (Computational Fluid Dynamics) concept studies and weeks of research in the wind tunnel. The 404 NSW features up to a 34% reduction in crosswind side force that provides unrivalled stability for a rim of this depth, and saves watts that would have been spent keeping the bike straight. The same stability that makes the 404 NSW fast on the flats also provides absolute confidence during high speed descents Features:Material: Rim: Carbon; Hub: 7075 Alloy Rim Surface: ABLC SawtoothRim Type: Carbon ClincherRim Depth: 58mmRim Internal Width: 17 25mmRim External Brake Track Width: 26 4mmRim External Max Width: 27 8mmHub Spacing O.L D.: 130mmHub Model: CognitionAxle Standard: Quick Release Bearings: Swiss Stainless SteelSpoke Count: 24Spoke Lacing Pattern: 2-Cross Weight: 850gTechnologies: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 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 Showstopper: Showstopper is a complimenting pairing of a directional, moulded-in, texture with silicon carbide particles suspended in the surface resin. The current media blast process applied to all Zipp rims increases the surface roughness of the brake track providing the rider with consistent and responsive braking. In order to improve this for the wettest of rides, Zipp have introduced a moulded-in groove specifically tuned for the Zipp Tangente Platinum Pro EVO Brake Pad. The grooves have been optimized to interact with leading edge (relative to the rotation of the wheel) of the brake pad and the four cooling channels. The leading edge of the pad and first two channels efficiently wipe water and debris outward, cleaning and drying the braking surface, while the second two cooling channels have maximum interference with the grooves allowing greater braking force than a smooth rim. The cleaning effects of the groove and pad interaction improve brake feel and consistency even in dry conditions ImPress: Zipp’s ImPress graphics technology prints graphics directly on the wheel, which allows the dimples to do what they were designed to achieve, to control vortex shedding and the rate at which air sheds off the wheel. Managing this is crucial to stability. ImPress graphics…
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