Zipp 303 Firecrest Carbon Clincher Disc Brake Rear Wheel

Zipp’s 303 Firecrest® Tubeless Disc-brake wheel 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. 

• New Zipp graphics and cosmetic identity that scream speed
• Versatile endurance wheel for the modern road bike with tubeless and hookless rim profile
• Lighter Weight than its predecessor, making it nimble and fast.
• Tubeless Made Easy, optimised tyre bed sign allows for simple tool-free installation and removal with no need for an air compressor to seat the tyre.
• Ultra-wide 25mm rim profile creates a better tyre 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 and quicker response with 66 points of engagement
• Ships with 12mm front and rear end caps
• Centre locking rotor interface. Lock ring is included with the wheels
• XDR™ or SRAM/Shimano driver bodies
• Campagnolo driver body sold separately

Deeply rooted in Zipp’s drive to conquer the Spring Classics, the new 303 Firecrest 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 303 Firecrest Tubeless Disc-brake 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 tyre, boosting aero efficiency on the road. The wide rim stance also features less tyre deflection for reduced rolling resistance. The combination of the wider tyre, increased tyre volume, and lower tyre pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tyre and wheel system absorbs the shaking, not the rider. At the centre of the 303 Firecrest Tubeless Disc brake is a versatile and durable new hub, the German-engineered ZR1 DB. This hub features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake wheel is for dedicated cyclists who aspire to the latest in technology. Its competitors… in races, against peers, or simply conquering personal limits. This is about becoming faster and matching your motivation to the most advanced technology.

• Orientation (wheels): Rear
• Size (wheels): 700c
• Rim construction: Carbon
• Tire compatibility: Clincher Tubeless Ready
• Rim depth: 40mm
• Surface texture: ABLC SawTooth
• Brake compatibility: Disc (Center Lock)
• Rim - inside width: 25mm
• Rim profile: Symmetrical
• Rim finish: UD fiber, adhesive decals
• Color (Decal): Standard
• Nipple material: Aluminum
• Nipple anti-rotation: Sapim Secure-Loc
• Spoke type: CX-Sprint
• Spoke count: 24
• Spoke pattern: 2 Cross
• Hub: ZR1 Disc Brake
• Driver body type: SRAM/Shimano Road or SRAM XDR
• Color (hub): Black
• Axle type (Wheels): TA 12x142
• Axle material: Aluminum front & rear
• Bearings: Cartridge - Stainless Steel
• Driver Mechanism: 6 Pawls Leaf Spring
• Driver body material: Aluminum
• Max tire pressure: 73psi
• Max recommended rider weight: 250lbs
• Part Weight (g): 739

Please Note: The below tyre brands have communicated to us that their tubeless models are compatible with our tubeless hookless straight side wheels. Riders wishing to use regular clincher tyres should check with the manufacturer if they are compatible with hookless rims. This is a guide and we still recommend consumers confirm compliance with their chosen tyre manufacturer: 

• Zipp - Tangente Speed RT25, R28, and the Tangente Course G40 gravel tyre
• Schwalbe 
• Rene Herse