Zipp 303 Carbon Tubular Rear Wheel
Description
This wheel provides superior rolling efficiency, making it ideal for long days in the saddle, epic mountain climbs and racing across the spring classics. Featuring the Zipp ABLC dimpled rim surface to significantly reduce air-flow drag and provides greater speeds and stability through any riding adventure. Unmatched Performance This wheel design has been fine-tuned and optimised in the wind-tunnel, then tested on the road where has proven itself many times as it helped push riders to the podium. Every Zipp wheel is laced and constructed by hand to ensure that the highest levels of performance are achieved for every rider, whether you are a World Tour Pro rider or an aspiring Road Racer, these wheels provide unmatched performance. 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 receives an impact from the road, a lot of the shock is absorbed by the VCLC system, resulting in a 10% reduction in road vibration. 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 a minimal weight penalty. 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.
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