Road bikes are going where they’ve never gone before, are expected to do more, and are being ridden harder than ever. At the same time disc brakes are rewriting the rules of what’s possible with rim design. For this new era, the Zipp® 303 Firecrest Tubeless Disc-brake wheelset sets the new standard. With an all-new disc-specific, tubeless rim, the 303 Firecrest Carbon Clincher is now internally 21mm wide and faster than ever. Designed from the start as a tubeless rim, the 303 Firecrest features a rim bed made with internal ridges to lock the tire’s bead in place, ensuring secure performance, even when ridden at lower tire pressures. A new carbon fiber layup keeps weight low while maintaining the 303’s legendary durability. The rim’s lightweight design allows the 303 to glide up the steepest climbs while our robust 77/177D hubset, keep the wheels stiff and responsive.
FEATURES AND BENEFITS
• Firecrest rim Technology provides world class handling and stability
• 77/177d hubset, with its best-in-class durability and improved bearing protection, all with no pre-load adjustment needed
• Aero performance, durable and Light Weight
• To ensure compatibility with any bike, our versatile 77/177D hubs come with swappable end caps to work with QR’s and thru-axles
Size (wheels): 650B, 700c
Rim construction Carbon
Rim - inside width: 21mm
Compat - Tire: Clincher Tubeless Ready
Brake compatibility: Disc (6-bolt)
Cassette Compatibility: Campagnolo, n/a, SRAM XDR, SRAM/Shimano Road
Axle type (Wheels): Conversion Caps included, TA 12x142
Color (Decal): Black, White
Driver Mechanism: 3 Pawls Leaf Spring, n/a
Spoke count: 24
Spoke type: CX-Ray - Black
Bearings: Cartridge - Carbon Steel
Nipple material: Aluminium
Rim finish: UD fibre, adhesive decals
Rim section: Symmetrical
Spoke pattern: 2 Cross
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