303 XPLR S B1 Wheel
The Zipp 303 XPLR S is a carbon gravel wheel built around a 54 mm deep, hookless rim with a 32 mm internal width. That width seats wide gravel tires in a smooth, continuous profile, which holds the casing shape at low pressure and improves traction and cornering support. The rim is tubeless straight side and takes approved tubeless-ready tires from 40c to 61c.
Each wheel runs a 24 spoke, two-cross build on Zipp 76 and 176 hubs with Center Lock disc mounts and 12 mm through axles, 100 mm front and 142 mm rear. Rear wheels take either a SRAM XDR or a SRAM and Shimano HG road driver body, so match the freehub to your cassette before ordering. Zipp rates them to a combined bike and rider limit of 135 kg.
Quick Facts
| Feature | Specification |
|---|---|
| Rim | 54 mm depth, 32 mm internal width, 40 mm external width, carbon hookless (tubeless straight side) |
| Tire Compatibility | Approved tubeless-ready hookless tires only, 40c to 61c. Maximum 50 psi / 3.45 bar, reducing to 36 psi / 2.5 bar on 55 mm to 60 mm tires |
| Freehub Compatibility | Rear wheel available with SRAM XDR or SRAM and Shimano HG road driver body. Front wheel carries no driver body |
| Axle and Brake Standard | 12 mm through axle, 100 mm front and 142 mm rear, Center Lock disc only |
| Spokes | CX-Sprint, 24 front and 24 rear, two-cross both sides |
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Product images may vary slightly from final specifications.
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