If you're looking for perfection, the 303 Firecrest will get you pretty close. This wheel set offers everything your heart desires, including technologies that have proven themselves in the toughest races in the world. At the heart of the wheel set is Zipp's innovative 77/177 hub set for improved stiffness, durability, simplicity and operability. This carbon wheel (from which the Firecrest rim platform with improved aerodynamics and greater stability in side winds emerged) also offers the unparalleled durability that won several victories at Paris-Roubaix and the Tour of Flanders.
The revised ABLC (Aerodynamic Boundary Layer Control) design reduces drag through more and less turbulence to ensure unsurpassed stability and control even in the strongest winds. Flow separation
Firecrest technology - from wheels with almost constant height to the spoke bed - offers the first aero profile that effectively regulates the airflow in the rear half of the wheel.
Centre of pressure
By shifting the centre of pressure (the centre of the lateral forces acting on the rim) close to the steering axle, Firecrest offers stable, reliable handling at any wind angle.
As the Zipp 303 has shown, a wider rim increases lateral stiffness for optimum sprinting and cornering. It also offers greater vertical flexibility for more control, comfort and resistance on rough surfaces.