The definition of ''road cycling'' now includes gravel and dirt as well as pavement. At the same time, bikes are evolving to meet the fit requirements of smaller riders. Meeting these two distinct needs was the driving force behind the Zipp 303 Firecrest 650b Tubeless Disc-brake wheelset.
FEATURES
- Zipp graphics and cosmetic identity that scream speed
- Versatile 45 mm rim profile for increased speed and better cornering, control and comfort
- Tubeless design provides secure performance when ridden at lower tire pressures
- ZR1 DB hubset is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement
- Built with Sapim CX Sprint J-bend spokes
- XDR or SRAM / Shimano driver bodies
- Campagnolo driver body sold separately
Technologies
ABLC (Aerodynamic Boundary Layer Control)
- Advanced Boundary Layer Control (ABLC) refers to the patented and instantly recognizable dimpled pattern found on all of carbon rims. ABLC smoothes airflow across the rim's surface and is tailored to every model from the 202 to the Super-9 Disc. The third-generation of ABLC has up to four times more dimples than before.
AeroBalance
- Zipp’s sole mission is to help you go faster. That's why wheels are race-ready before they're camera-ready. For years, Zipp has used a combination of testing methods – wind tunnel, CFD computer simulations, pro athlete evaluations, on-road testing, and the RollingRoad ride simulator – to refine aero performance to new levels of excellence. Over the decades of innovation, engineers have learned to look beyond just focusing on simply reducing aero drag. Instead, the goal now is to reduce aero drag while also minimizing the effects of crosswinds on handling. This optimizing of aero efficiency and crosswind stability became known internally at Zipp as AeroBalance. The approach began with Firecrest technology and has been advanced with the introduction of the NSW lineup, especially with the Sawtooth technology found in the 454 and 858 NSW.
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