Zipp graphics and cosmetic identity that scream speed
Versatile endurance wheelset for the modern road bike with tubeless and hookless rim profile
Lighter weight than its predecessor, making it nimble and fast
Tubeless optimized tire bed sign allows for simple tool-free installation
Ultra-wide 25mm rim profile creates a better tire interface to be fast on or off the road
New 40mm rim depth makes a light and aero wheel in every situation
New ZR1 DB hub is engineered in Germany with better seal design for improved durability
Ships with 12mm front and rear end caps
Center locking rotor interface with Lockring included
Shimano 11-spd driver body
ZIPP 303 Firecrest Tubeless Disc A1 Rear
The Zipp 303 Firecrest Tubeless Disc-brake wheelset is designed for the real world… a world of imperfect conditions, road surfaces, and elements where the bottom line is simple. Efficiency = speed. It’s faster, lighter, and more capable over varied terrain—whether the surface is pavement in all its conditions or no pavement at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the new Zipp 303 Firecrest Tubeless Disc is remade with a purpose-made approach for the demands of modern road bikes.
When it comes to going fast on a bicycle, efficiency means reduced: Wind resistance, rolling resistance, rider fatigue, weight. The Zipp 303 Firecrest Tubeless Disc was designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width, and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tire, boosting aero efficiency on the road.
The wide rim stance of the Zipp 303 Firecrest Tubeless Disc also features less tire deflection for reduced rolling resistance. The combination of the wider tire, increased tire volume, and lower tire pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tire and wheel system absorb the shaking, not the rider.
At the center of the 303 Firecrest Tubeless Disc is a versatile and durable new hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake wheelset is for dedicated cyclists who aspire to the latest in technology. Its competitors… races, against peers, or simply conquering personal limits. This is about becoming faster and matching your motivation to the most advanced technology.