Zipp 202 Firecrest Carbon Disc Black Wheelset

202 Firecrest Carbon Disc Black Wheelset. The delivery of speed, efficiency and responsiveness has always been the purpose of the Firecrest 202 wheel design. The 202 Firecrest Carbon wheelset takes road wheel performance to the next level. Equipped with the most advanced rim and hub technology that Zipp has created, this wheelset has been engineered to ensure the best disc brake stability. Additionally, the performance enhancing tubeless compatibility and World Tour level aerodynamics that Zipp have mastered will help advance your race to the podium Aerodynamic Stability and Crosswind Control. These wheels feature the Firecrest rim profile, specially designed to provide air slicing aerodynamics and to be extremely stable in windy conditions. The rim designs features the Zipp specific SawTooth dimple surface, which further reduces aerodynamic drag and helps to significantly increase control in strong crosswinds. It has been optimised to perform best with the modern wider tyre sizes up to 28mm 28c in width, as the increased tyre width allows for a greater rolling speed and grip while being more comfortable. When braking, the wider tyre profile provides a larger tyre contact patch with the road, ensuring greater stability and traction Fast, Responsive and Durable. The full carbon rims are amazingly flex free, which noticeably benefits power transfer from the rider to the road. It enhances the experience of confidence inspiring stability at all speeds, all weather conditions and across any terrain you are cycling on. To compliment the fantastically designed rims are Zipp 77D disc brake hubs and top level Sapim CX Ray spokes. The addition of disc brake compatibility on the already high performance 202 Firecrest design creates a wheelset that can satisfy every race day demand for performance and any season long requirement for durability and consistency Features MaterialRim Carbon; Hub Alloy Hub Model77D Hub Width100mm Rim WidthInternal 21mm; External 28 9mm Rim TypeClincher Rim Depth32mm Spoke TypeSapim CX Ray Spoke Hole Count24 Hole Spoke Pattern2 Cross Spoke Length284mm Max Tyre Pressure125psi 8.62bars Track AdaptableNo Dimpled Rim SurfaceYes 11 Speed CompatibleYes NipplesSapim Secure Lock Thru Axle CompatibleYes Weight705g front, 825g rearTechnology Aerodynamic Boundary Layer Control ABLCThe 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 SawToothThe name given to the Zipp NSW variable depth 5358mm 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 BuyZipp Wheels & Tyresfrom Chain Reaction Cycles, the Worlds Largest Online Bike Store.