The 303 Firecrest Tubular Disc-brake wheelset, pro proven in cyclocross, is now even better and lighter. At the center of the wheelset is Zipp's 77/177D hubset, an innovation that results in improved stiffness, durability, simplicity and usability.
The 77/177D hubset is the perfect compliment for the leading aerodynamics, ride quality, stability and rim strength of Zipp's Firecrest rim technology. That means you get the unmatched performance of the 45mm-deep 303 Firecrest rim proven with victories multiple victories at Paris-Roubaix, the Tour of Flanders and pro cyclocross races. And when it's time to scrub off speed or stop, you won't have to tense up and grab a handful.' You have the consistency and power of disc brakes ????precision modulation and stopping power is at your fingertips. On top of that, the revised 303 Firecrest Tubular Disc-brake wheelset is 35 grams lighter than its predecessor.
You're at the helm of a serious Speed Weapon that helps speed up and smooth out even the most chaotic courses. That's true even when the conditions and terrain get crazy?? in cyclocross?? gravel roads?? steep lonely lanes?? or even urban assaults. Jeremy Powers (Rapha-Focus) and the Giant Factory Off-Road Team raced Zipp 303 Firecrest Tubular Disc-brake wheels with new 77/177D hubset to great success this season, including Power's 2015 U.S. national championship victory.