The Firecrest shaping optimizes the aerodynamic profile of both the front half and the back half of the wheel. In addition, Firecrest moves the center of pressure of the wheel backwards, giving the 45 mm-deep rim the crosswind stability a box-section rim.
This new wheelset rewrites Zipp’s own stringent rules for performance, durability and versatility in an aluminum wheelset. The result is improved cornering grip and increased comfort. The 30 Course Rim-brake wheelset also includes newly designed quick-release skewers with a wider more ergonomic handle to provide more leverage for opening and closing.
For sale is a Zipp Powertap rear wheel Shimano sram.This wheel has been in our storage room for a number of years, the working condition is unknown and it may be missing parts therefore the wheel is being sold for parts or not working.