Zipp 303 SW Tubeless Disc A1
303 SW Tubeless Disc A1
303 SW Tubeless Disc A1
303 SW Tubeless Disc A1
303 SW Tubeless Disc A1
Zipp

Zipp 303 SW Tubeless Disc A1

In Stock

The Zipp 303 SW Tubeless Disc A1 is a 40mm carbon front wheel tuned for fast, stable gravel and mixed-surface riding. Wide 25mm internal rim, tubeless-ready and integrated AXS pressure sensor for real-time monitoring.

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Available Options

Option Price Availability
Zipp, 303 SW Tubeless Disc B1, Wheel, Front, 700C / 622, Holes: 20, 12mm TA, 100mm, Disc Center Lock — In Stock
Zipp, 303 SW Tubeless Disc B1, Wheel, Rear, 700C / 622, Holes: 20, 12mm TA, 142mm, Disc Center Lock, Shimano HG 11 — In Stock
Zipp, 303 SW Tubeless Disc B1, Wheel, Rear, 700C / 622, Holes: 20, 12mm TA, 142mm, Disc Center Lock, SRAM XD-R — In Stock

Product Details

Overview — versatile carbon wheel engineered for gravel speed

The Zipp 303 SW Tubeless Disc A1 is a do-it-all front wheel built to deliver aerodynamic efficiency, compliant ride quality and robust durability across gravel, cobbles and rough backroads. The 40mm rim depth paired with a 25mm internal width gives a modern wide-rim stance that improves tire shape, reduces deflection and lowers rolling resistance with wider tyres. The rim's refined shape improves the transition from rim to tyre to reduce aerodynamic drag with larger-volume tyres and the construction helps shield the tyre in impacts that might otherwise cause a pinch flat. At 1440g (manufacturer spec) and finished in carbon with Sapim CX-Sprint spokes on a ZR1 hubset, this wheel balances weight, strength and real-world ride comfort.

Technology & construction — materials that matter

The 303 SW B1 rim uses carbon double-wall construction with an internal width of 25mm (rim inner width range 22–27.9mm), optimized for tubeless setups. Wider internal rims increase tyre volume, allowing lower pressures for better traction and reduced rider fatigue on rough roads. The double-wall layup and 20-hole Sapim CX-Sprint spokes give a stiff but forgiving platform tuned for mixed-surface loads. The wheel spins on Zipp's ZR1 hubset (Center Lock rotor interface) and is tubeless-ready with a Presta valve. Zipp also integrates the AXS Wheel Sensor for accurate, real-time tyre pressure monitoring — a practical feature for riders dialing pressures for changing terrain. A lifetime warranty from Zipp backs the construction and build quality.

Fit & compatibility — what to check before you buy

This front wheel is built for a 12mm thru-axle (12mm TA) with 100mm hub spacing and a disc center-lock rotor mount — confirm your fork accepts 12x100mm thru-axles and Center Lock rotors or use the appropriate adapters. Rim drilling is 20, so check spoke/hub compatibility if you plan to rebuild or lace to a different hub. Valve type is Presta and the wheel is 700C (622 ISO). While the front A1 variant lists a Shimano HG 11 freehub body in the general spec sheet, the rear variants offer HG and XD-R options — choose the rear model matching your drivetrain. The rim and hub are tubeless-ready; use a compatible tubeless tyre and sealant, and follow Zipp's recommended tyre pressure range for 30–35mm tyres for best performance.

Who it's for — ideal rider profile

The 303 SW is aimed at gravel and mixed-surface riders who want a fast, predictable wheel that also smooths rough roads. If you prioritize aerodynamics with larger-volume tyres, want lower rolling resistance from reduced tyre deflection, and value in-ride tyre-pressure feedback via an integrated sensor, this wheel is a top-level choice. It's well suited to endurance gravel racers, bikepackers who lean performance-focused, and road riders who frequently encounter poor pavement or light gravel. Riders seeking an all-weather, robust front wheel with modern rim width and tubeless convenience will appreciate the 303 SW's balance of speed and comfort.

Key Features

  • ✓ 40mm carbon rim depth tuned for gravel aero and control
  • ✓ 25mm internal width for improved tyre profile and lower rolling resistance
  • ✓ Optimized for 30–35mm tyres with peak performance at 35mm
  • ✓ Tubeless-ready construction with Presta valve and robust bead seat
  • ✓ ZR1 hubset with Center Lock rotor interface for reliable engagement
  • ✓ Integrated Zipp AXS Wheel Sensor for real-time tyre pressure data
  • ✓ Sapim CX‑Sprint spokes laced to a double-wall carbon rim, 20 holes
  • ✓ Lifetime warranty from Zipp for added peace of mind

Specifications

Axle Type 12mm TA
Hub Model ZR1
Hub Spacing 100mm
Position Front
Rim Color Black
Rim Construction Double wall
Depth 40mm
Rim Drilling 20
Rim Internal Width 25mm
Rim Material Carbon
Rim Model 303 SW B1
Skewers Included No
Spoke Type Sapim CX-Sprint
Valve Presta
Wheel-Brake Comp. Disc Center Lock
Wheel Diameter/ISO 700C / 622
Wheel Tire Type Tubeless
Rim inner width range 22-27.9mm
Freehub Body Shimano HG 11

Product Identifiers

Vendor Item # 00.1918.733.000
UPC 710845901379

Frequently Asked Questions

What tyre sizes work best on the 303 SW?

The 303 SW is optimized for 30–35mm tyres and performs best at 35mm. The 25mm internal rim width increases tyre volume and supports lower pressures, improving comfort and traction on rough surfaces.

Is the wheel tubeless-ready and how do I set it up?

Yes — the 303 SW is tubeless-ready. Mount a tubeless-compatible tyre, install a tubeless valve (Presta), add sealant, and seat the bead per Zipp's instructions. Use a floor pump or compressor and follow recommended pressures for your tyre width and load.

Will this front wheel fit my bike?

This front variant uses a 12mm thru-axle with 100mm spacing and Center Lock rotor mount. Confirm your fork accepts 12x100mm thru-axles and Center Lock rotors, or source the correct adapter if applicable.

What cassette compatibility options are available?

Rear variants are available with Shimano HG 11 or SRAM XD-R freehub bodies. The front wheel doesn't use a freehub, so choose the rear model that matches your drivetrain or uses a compatible freehub for your cassette.

How durable is the rim for rough gravel and cobbles?

The rim uses a double-wall carbon layup and a refined profile that helps shield tyres from pinch impacts. Combined with Sapim CX‑Sprint spokes and ZR1 hubs, the build balances stiffness and compliance for long life on mixed surfaces. Zipp's lifetime warranty adds backing to durability claims.

What does the AXS Wheel Sensor monitor and how does it connect?

The integrated Zipp AXS Wheel Sensor provides accurate, real-time tyre pressure monitoring to help you dial pressures on the fly. It connects to compatible apps and AXS ecosystems via wireless protocols — refer to Zipp's AXS documentation for setup steps and phone/app compatibility.

Buying Guide

When choosing a tubeless gravel wheel like the Zipp 303 SW, prioritize internal rim width, tyre compatibility and axle/rotor standards. Wider internal widths (around 25mm) support larger tyres (30–35mm), improving grip and comfort while allowing lower pressures without excessive sidewall squirm. Rim depth (40mm here) balances aerodynamic benefit with crosswind handling — a versatile depth for mixed terrain. Also check hub spacing and freehub body options for drivetrain compatibility, and confirm the wheel's tubeless readiness and rotor interface match your frame and brake system. If you want tyre-pressure telemetry, opt for integrated sensor variants to simplify setup and get real-time feedback on ride conditions.

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