The 303 brings a lot to the table, including heritage proven in the world's hardest races. At the center of the wheelset is Zipp's 77/177 hubset, which results in improved stiffness, durability, simplicity and versatility. The carbon wheel that helped pioneer the Firecrest rim platform for improved aerodynamics and crosswind stability also features the unspoken durability that has repeatedly won Paris Roubaix and the Tour of Flanders
- Firecrest rim technology affords the rider more speed, more stability, and more strength. This technology offers stable, predictable handling, and the wider rim increases lateral stiffness while offering greater vertical compliance
- Utilizing Zipp's new 77D & 177D hubs, incorporating an all new flange geometry with opposing straight pull spokes
- Each wheel includes Zipp quick release skewer, end caps that can be swapped to run 12mm x 135 or 142mm thru axle; 1 Zipp 700c X 20mm rim tape, 1 Zipp tubeless valve and 1.85mm spacer for use with 10-speed cassettes
- 303 Firecrest Carbon Clincher Tubeless Disc Brake total wheelset weight is 1645 grams
Going tubeless allows you to run lower tire pressures without the added weight of a tube. Lower tire pressure has many benefits, including greater traction, lower rolling resistance over rough surfaces, and decreased risk of a puncture-related flat.
Tubeless-ready rims and tires are parts of a complete system that eliminate the need for tubes by creating an airtight chamber between the rim and tire. Liquid sealant is added to the chamber to fill small punctures and maintain air pressure while you ride.
UST (Universal Standard for Tubeless) is a specific type of tubeless system that dictates the shape of the rim and tire bead. UST rims should be paired with UST-specific tires for best results.
|Brake Compatibility||6-Bolt Disc|
|Axle||12mm Thru x 135mm , 12mm Thru x 142mm , QR x 135mm|
|Inner Rim Width||21mm|
|Outer Rim Width||28.5mm|
|Valve Type||Medium Presta Valve 41-55mm|
|QR / Campagnolo / Black w/Black Decal / 700c||710845795381||00.1918.332.009|
|QR / Shimano/SRAM / Black w/Black Decal / 700c||710845795312||00.1918.332.001||34163|
|QR / Shimano/SRAM / Black w/White Decal / 700c||710845795305||00.1918.332.000|