Zipp 303 SW All-Road Wheelset - 40 mm, AXS Sensor

ALL-ROAD / ENDURANCE / CONNECTED

Zipp 303 SW: for the road ride that refuses to stay predictable

The Zipp 303 SW is a 700c carbon disc-brake wheelset for endurance road and multi-surface riding. Its 40 mm rim, 25 mm internal width and integrated AXS Wheel Sensor make it a useful starting point for riders who want to plan around wider road tires and monitor pressure, rather than simply choose the deepest rim.

Start with the route you actually enjoy

The best route on your map is not always the newest pavement. It may include a rough lane, an old bridge, a long climb or a stretch that makes you reconsider yesterday's tire pressure. For that rider, the buying question is not only how a wheel looks on an aero bike. It is whether the whole setup makes sense for the roads you keep choosing.

The 40 mm rim and 25 mm internal width are designed for a wider road-tire platform, with Zipp optimizing the profile around 30-35 mm tires. The AXS Wheel Sensor adds another dimension: on-bike pressure monitoring helps you check your setup and notice changes during a ride. ZR1 hubs with stainless-steel bearings complete a package that brings aero design, tire volume and pressure awareness into the same all-road conversation.

Zipp 303 SW: a closer look

Official Zipp product photography. Individual wheels are shown for detail; this listing is for the front-and-rear wheelset. The rear freehub supplied follows your selected option; rear photographs show an example configuration.

Who should put this wheelset on the shortlist?

Choose the 303 SW when the endurance or multi-surface brief fits your riding better than a deeper road-racing profile. Consider the 404 Firecrest when the question is primarily a deeper paved-road setup; consider XPLR when your tire plan centers on a dedicated ultra-wide gravel platform.

Zipp 303 SW specifications

Zipp 303 SW vs 404 Firecrest: wider-road versatility or deeper aero?

The 303 SW pairs 40 mm depth with a 25 mm internal width and AXS pressure sensing. The 404 Firecrest pairs 58 mm depth with a 23 mm internal width. We would begin with the 303 SW for a wider-tire endurance brief and with the 404 for a deeper-road-wheel brief. That is a use-case recommendation, not a claim that one wins every ride.

Compare with Zipp 404 Firecrest or Zipp 303 XPLR SW.

Questions to answer before ordering

Can I use 28 mm tires on the 303 SW?

The checked A1 product specification starts at 30 mm. Do not assume that a tire approved on a different Zipp rim is approved here. Check the exact tire, size and current manufacturer guidance.

Does the 303 SW include an AXS Wheel Sensor?

Yes, the model includes the integrated sensor. Follow the current setup and compatibility instructions for the system; sensor capability does not replace a physical inspection before riding.

Can I add sealant through the valve as usual?

Use Zipp's specified injector procedure. Zipp warns that injecting without the supplied injector can flood and damage the sensor. Ask about the setup before the first tire installation.

Is the 303 SW the same wheel as the 303 XPLR SW?

No. The shared SW name does not make them interchangeable. The 303 SW has a 25 mm internal width; the XPLR SW has a 32 mm internal width and an XPLR-specific tire approval requirement.

Choose the wheels with a real bike shop

Tell us your bike, the surfaces you ride and whether your preferred tire is 30, 32, 35 mm or wider. We can work through the wheel choice and the sensor setup with your intended configuration in mind.

Ask Brimstone about this wheelset or call (330) 970-0911. Our shop is in Canal Fulton, Ohio. Confirm current availability, package contents and any installation or accessory charges before purchase.

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