Why are Zipp wheels our best selling; by far? Zipp is the leader in wheel design that everyone else seems to be following. They were the first wheel company to use CFD (computer fluid dynamics) computing technology to design wheels, greatly accelerating the pace of wheel research and development. This technology led to the terroidal bulge (Firecrest) shape which every other wheel designer tried to copy. They were the first wheel company to use dimpling to break up surface tension, use advanced resins for braking surfaces, and design a hub that releases the pawls in forward motion to reduce drag. If you are looking for the cutting edge of wheel design- it is here. Shop our Zipp products below. We have Zipp wheels, seatposts, tools, and more.