The Zipp 303 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.
|Rear Axle Type||10x1|
|Cassette Body Type||Shimano/SRAM 11,Shimano 9/10/SRAM|
|Hub/Brake Compatibility||6-Bolt Disc|
|ISO Diameter||622 / road / 29"|
|Valve Length||Med 41-55mm,Long 56-74mm|
|Rear Wheel Type||Road|
|Rear Hub Spacing||135mm|
|Spoke Info||Sapim CX Ray|
- Proprietary Firecrest rim improves aerodynamics, ride quality, wheel strength and stability, even in the strongest of crosswinds
- Zipp Carbon Clinchers are constructed with a heat-resistant resin, wind tunnel tested and shaped for optimized speed, and combine superior handling and comfort with the road-feel of a wide rim body
- Visco-Elastic Constrained Layer Control material is sandwiched between layers of the carbon laminate in the rim to reduce shock and road vibration by 10%
- Aerodynamic Boundary Layer Control is a dimpled pattern that improves airflow across the rim's surface
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