Zipp 808 Carbon Clincher Rear Wheel 700c QR. When it comes to deep profile carbon clincher rims, Zipp know exactly what they are doing and with the 808 Carbon Clincher Rear Wheel 700c QR, they have excelled in making a competition ready rim that will leave all competitors in its dust Superior Aerodynamics and Performance. Equipped with Zipp's own Firecrest technology, this 808 model rear wheel features a unique and innovative profile that makes marked improvements in stability during crosswinds to enhance your riding performance and quality. Low in weight due to its carbon construction, the wheel remains stiff and responsive on every run, especially when tackling devilish descents and sharp accelerations. At 82mm deep and 1kg in weight, this robust roller uses its ABLC Sawtooth dimple design to perfectly balance itself, while the ShowStopper textured braking surface gives unmatched stopping performance, no matter the weather. A tried and trusted time trial and triathlon favourite, the 808 Carbon Clincher Rear Wheel 700c QR is an aero efficient example of pure wheel engineering science. Technologies Firecrest. With the new proprietary Firecrest rim shape in their 202, 303, 404 and 808 Firecrest wheels, Zipp wheels make a bigger difference in more ways than ever. Not only is Firecrest more aerodynamic than any other rim design, it improves handling in crosswinds and overall ride quality. Showstopper. The industry leading Showstopper brake track allows you to brake later with more stopping power and greater control, regardless of weather conditions or the length of the descent SawTooth. The namegivento the Zipp NSW variable depth 7782mm rim profile. This design is the result of rigorous wind tunnel and real world testing. The rim shape takes natures elegant design solutions and combines their precise engineering finesse to deliver a wheel that performs like nothing else before HexfinAerodynamic 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 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 Wire EDM. Electron Discharge Machining allows Zipp to precisely remove internal material from the rear hub after they have been heat treated. This removes any abnormality that can sometimes occur during the heat treating process, resulting in a perfectly finished hub shell Features. MaterialRim Carbon; Hub Aluminium Hub ModelZipp 177 Rim ProfileDepth 82mm; Internal Width 17mm Rim TypeCarbon Clincher SpokesSapim CX Ray J Bend, 24H, 2 cross Max Tyre Pressure125psi Dimpled SurfaceABLC, Hexfin Weight1kgBuyZipp Wheels & Tyresfrom Chain Reaction Cycles, the World's Largest Online Bike Store.
