ZIPP 303 XPLR S B1 - 00.1918.804.000

ZIPP 303 XPLR S B1 Wheel - 00.1918.804.000 - 2026

The ZIPP 303 XPLR S B1 front wheel in dark grey is designed for gravel cyclists looking for a fast, robust carbon wheel specifically optimized for modern gravel tires. It incorporates several innovations from Zipp high-end gravel wheels, with an approach designed to offer excellent performance, greater comfort, and improved efficiency on uneven surfaces.

With its 54mm deep hookless carbon rim and impressive 32mm internal width, the 303 XPLR S B1 allows for the use of wide, tubeless-ready gravel tires, from 40 to 61mm. This design increases air volume, allows for lower tire pressures, and helps reduce vibrations from rough tracks, trails, and roads.

The front wheel plays a crucial role in the bike's control, precision, and stability. The wide, deep profile of the Zipp 303 XPLR S B1 allows for a smooth transition with compatible gravel tires, improving aerodynamic efficiency while maintaining grip and confidence in corners.

Rim design

Construction

Hookless carbon rim.

Format

700c.

Rim depth

54 mm.

Internal width

32 mm.

Maximum external width

40 mm.

Rim profile

Symmetrical.

Finishing

UD fiber with adhesive decorations.

Gravel technology

Total System Efficiency

The Zipp 303 XPLR S B1 applies the Total System Efficiency approach to the specific constraints of gravel riding. The goal is to reduce losses related to rolling resistance, vibration, aerodynamics, and the overall weight of the system.

Ultra-wide profile

The 32mm internal width increases the tire's air volume and allows for lower pressures, including below 30 psi / 2.1 bar depending on the tire used and fitting recommendations.

Stability and control

The larger air volume helps to dampen vibrations from the terrain, while maintaining grip in corners and traction on gravel climbs.

Gravel aerodynamics

The wide and deep rim profile is designed to integrate seamlessly with compatible gravel tires, in order to improve aerodynamic efficiency on fast courses.

Front hub

Model

Zipp 76D.

Bearings

Stainless steel cartridge bearings.

Disc mount

Disc Center Lock.

Axis

Supplied with front end caps for 12mm thru-axle.

Tire compatibility

Compatible tires

Compatible only with approved Tubeless Ready tires from 40 to 61 mm, with sealant or inner tube.

Mandatory compatibility

The Zipp 303 XPLR S B1 must only be used with approved tires. The Goodyear XPLR Slick and Goodyear XPLR Inter are specifically designed and optimized for this wheel.

Maximum pressure

50 psi / 3.45 bar.

Braking

Brake type

Disc brake.

Disk interface

Center Lock.

Recommended use

• Gravel performance
• Gravel race
• Long distances on rolling roads
• Deteriorated roads
• Fast routes with wide gravel tires
• Low-pressure tubeless setups with approved tires

Technical specifications

• Brand: Zipp
• Model: 303 XPLR S B1
• Model ID: WH-303-XPS-B1
• Wheel: front
• Size: 700c
• Rim construction: Hookless carbon
• Technology: Tubeless
• Tire compatibility: Approved TLR tires from 40 to 61 mm
• Rim depth: 54 mm
• Internal width: 32 mm
• Maximum external width: 40 mm
• Hub: Zipp 76D
• Bearings: stainless steel cartridge
• Braking: Center Lock disc
• Maximum pressure: 50 psi / 3.45 bar
• Maximum recommended system weight: 135 kg
• Sticker color: dark grey

Guarantee

Zipp Lifetime Warranty

Zipp wheels come with a lifetime warranty against product defects that occur during use. The warranty is non-transferable and proof of purchase is required.

Why choose the Zipp 303 XPLR S B1 front wheel?

• Ultra-wide 32mm internal gravel carbon rim
• 54mm profile optimized for gravel performance
• Modern Hookless Tubeless Design
• Compatible with approved gravel tires from 40 to 61 mm
• Allows you to ride at lower pressure for greater comfort and grip
• Reliable Zipp 76D front hub with stainless steel bearings
• Center Lock disc mount
• Zipp Lifetime Warranty