Zipp 303 Carbon Tubular Front Wheel (QR) 2019

Zipp 303 Carbon Tubular Front Wheel QR. The Zipp 303 Carbon Tubular Front Wheel features high end, podium proven performance, elegance and superior stability. It features an exceptional light weight while still being very stiff and is perfect for spending all day climbing the highest mountains, racing your way back down at full speed and touring across the roughest of cobbled streets. This full carbon wheel features the unique to Zipp ABLC dimpled rim surface, which significantly reduces air drag, resulting in increased speed and stability throughout the duration of your ride Fine Tuned, Wind Tunnel Enhanced Performance. The 303 Firecrest wheel design has been fine tuned and enhanced to the highest level of performance thanks to extensive wind tunnel testing, which ensured that air drag would not affect stability or power output when cycling. Every Zipp wheel is laced and constructed by hand, and tuned to the highest levels of performance; many World Tour events have been won on Zipp wheels and customers receive the exact same quality as their Pro Race Teams Features Hub Model 77 Rim Outer Width 26 5mm Rim Carbon Tubular Rim Depth 45mm Spokes Sapim CX Sprint Spoke Hole Count 18 Hole Spoke Pattern Radial Spoke Length 260mm Max Tyre Pressure 125 psi Track Adaptable No Dimpled Surface ABLC Sawtooth Nipples Sapim, External Weight 593gTechnologies 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. 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 rims profile to further reduce high yaw drag and improve crosswind stability. Firecrest A unique to Zipp rim profile that provides more aerodynamic finesse than any other rim design. It also improves handling in crosswinds significantly and increases the ride quality enormously Buy Zipp Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.