Zipp 303 S Carbon Tubeless Front Bicycle Wheel

The Zipp 303 S is a carbon front wheel built for road riders who want one wheel to handle everything from smooth tarmac to rougher, chip-sealed pavement without swapping equipment. It uses a 45mm-deep, hookless UD carbon rim with a 23mm internal / 27mm external width, a shape carried down from Zipp’s higher-tier 303 Firecrest Tubeless wheels to bring that same terrain versatility to a more accessible build.

The wider rim profile is designed to optimize tire shape at lower tubeless pressures, which lowers rolling resistance and gives a more compliant ride over rough surfaces. Combined with reduced weight and wind resistance versus a traditional narrower rim, the result is a wheel built to reduce rider fatigue over long rides. It’s set up for a Center-Lock disc brake and a 12mm thru x 100mm front axle, and it’s tubeless-ready only — there’s no tube-type clincher compatibility.

Who It's For

•      Road riders who want a tubeless-only wheel that performs well across varied pavement conditions

•      Riders upgrading from alloy who want the weight and comfort benefits of a carbon hookless rim

•      Cyclists on disc-brake bikes with Center-Lock rotors and a 12x100mm thru axle

•      Not a fit for rim-brake bikes, quick-release front axles, or riders who prefer to run tubes

What to Look For

•      Confirm your bike takes a Center-Lock disc front wheel with a 12mm thru x 100mm axle — this wheel isn’t compatible with rim brakes or quick-release

•      This listing is for the front wheel only; pair it with a compatible 303 S rear wheel to complete the set

•      Because the rim is hookless and tubeless-ready only, plan on running tubeless tires — tube-type clinchers aren’t supported

Key Features

The rim is a UD carbon hookless design at 45mm deep and 27mm wide (23mm internal), the same architecture Zipp uses on its 303 Firecrest Tubeless wheels. That width is what lets the tire hold a rounder profile at lower pressure, which is where the ride quality and rolling resistance gains come from. Because it’s hookless, the rim is built for tubeless tires only — there’s no tube-type clincher option with this wheel.

The hub is a 76D, mounted to a 12mm thru x 100mm front axle for a stiff, secure fit. Braking is handled through a Center-Lock disc interface, so a Center-Lock or Center-Lock-adapter rotor is required. The finish is a smooth matte black, consistent across the 303 S line.

Rider Intent Summary

•      Biggest strengths: terrain versatility from the 45mm/27mm hookless rim shape, ride comfort at lower tubeless pressures, and reduced weight and wind resistance versus a narrower-profile wheel

•      Tradeoffs: tubeless tires only (no tube-type clinchers), and it’s sold as a front wheel only — a rear wheel is a separate purchase

•      What makes it different: it inherits its rim architecture directly from the 303 Firecrest Tubeless wheel, bringing that design down to a more accessible tier

Victory's Take

We like the Zipp 303 S for riders who want Firecrest-level rim geometry without the Firecrest price tag. If you’re already running tubeless and have a Center-Lock, thru-axle setup, this is a straightforward upgrade — just remember to budget for the matching rear wheel.