Ruota anteriore da strada Zipp 404 Firecrest tubolare AW17

Nome: Ruota anteriore da strada Zipp 404 Firecrest tubolare AW17
Marca: Zipp
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Su trovi Ruota anteriore da strada Zipp 404 Firecrest tubolare AW17 a prezzi convenienti. Ruota anteriore da strada Zipp 404 Firecrest tubolare AW17 è disponibile nelle misure 700c.Wheels Zipp. Wheels Nero/Bianco. Wheels misura 700c.

Zipp, Nero/Bianco.

Zipp 404 Firecrest Tubular Front WheelThe Zipp 404 Firecrest Tubular  Front Wheel is one wheel that does it all, perfect for every riding situation  that requires speed. Designed with a rim depth and profile that has been proven  in all conditions, it is an ideal option for every triathlon distance,  breakaways, sprints and hill finishes Efficient and DurableThe Firecrest is a standard to  which all other wheels are measured, it’s been a pro favourite for nearly three  decades and has won many Grand Tour stages, International Triathlons and  Ironman events. At the centre of this success is the Zipp 77 hubset with its  exceptional durability, rolling efficiency and bearing life, with no  pre-adjustment needed; these hubs make every riding endeavour a hassle-free  experience meaning you can focus on the route ahead Features:  Hub Model: 77  Brake Track Width: 25 34mm  Axle: Quick Release  Rim: Tubular  Rim Depth: 58mm  Spokes: Sapim CX-Sprint  Spoke Hole Count: 18 Hole  Spoke Pattern: 2-cross  Spoke Length: 248mm  Max Tyre Pressure: 125psi / 8.62bars  Dimpled Surface: Yes  Nipples: Sapim / External  Weight: 665gFeatures: 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. Carbon Bridge: Adding Kevlar, stitched into a 6 bundle co-axial thread and placing this at the rim edge allows Zipp to ‘capstone’ the top of each outside diameter bridge, providing an improved way to distribute impact forces. This gives from 28% to as much as 50% improvements in impact depending on the rim type and allows Zipp to increase the lateral stiffness with minimal weight penalty. Visco-Elastic Constrained Layer Control (VCLC): Using a vibration absorbing material that is compressed between layers of solid carbon laminate on the rim surface. This technology means that when the rim received as impact from the road, a lot of the shock is absorbed by the VCLC system, resulting in a 10% reduction in road vibration Buy Zipp Wheels & Tyres from Chain Reaction Cycles, the World’s Largest Online Bike Store.

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