Firecrest - An entirely new rim shape providers an aerodynamic improvement that no one thought was possible The new wider rim shape also allows a wider rim for stability and thicker rim for durability. The best part is all this is done without sacrificing weight.
Carbon bridge technology - Zipp has effectively eliminated the need for Clydesdale wheels with a more durable rim structure. Carbon bridge technology utilizes a combination of Kevlar and carbon to make a remarkably durable rim for all the conditions you choose to throw at it.
ABLC - ABLC is the unique dimple surface Zipp has been known for creating. In its third generation design, every dimple of ever rim size is strategically placed for maximum performance making every wheel across the entire range faster, smoother and more efficient in its own unique design.