ZIPP 303 XPLR S B1 - 00.1918.804.002 + 00.1918.805.001 / 00.1918.805.003

ZIPP 303 XPLR S B1 Wheels - 00.1918.804.002 + 00.1918.805.001 / 00.1918.805.003 - 2026

The ZIPP 303 XPLR S B1 wheelset - white is designed for gravel cyclists who want access to Zipp 's major innovations in a fast, robust, and high-performance carbon wheel, without aiming for the highest price point in the range. It incorporates the key principles of the brand's extra-wide premium gravel wheels, with a construction designed for long days, speed, and reliability.

With their 54mm deep hookless carbon rim and massive 32mm internal width, the Zipp 303 XPLR S B1 wheels are optimized for 40-61mm tubeless-ready gravel tires. This width allows for significantly increased air volume, lower tire pressure, and reduced vibrations from rough surfaces.

In gravel riding, losses due to shocks, vibrations, rolling resistance, and aerodynamics can significantly slow a cyclist down. To address these challenges, Zipp applies its Total System Efficiency philosophy, with a wheel designed as a complete system: wide rim, compatible wide tire, low pressure, grip, traction, and aerodynamic efficiency.

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.

Total System Efficiency technology

A holistic approach to performance

The Zipp 303 XPLR S B1 is designed to reduce the performance losses inherent in gravel riding: rolling resistance, ground vibrations, aerodynamic drag and fatigue over long distances.

Low pressure and air volume

The ultra-wide 32mm internal profile increases the available air volume in the tire, allowing riding at pressures below 30 psi / 2.1 bar depending on the tire used and fitting recommendations.

Comfort and grip

Running at lower pressure allows for better vibration filtering, improved cornering grip, and better traction uphill.

Aerodynamic efficiency

The wide and deep rim integrates seamlessly with compatible gravel tires, in order to improve aerodynamic efficiency on fast sections.

Hubs

Front hub

Zipp 76D.

Rear hub

Zipp 176D.

Bearings

Stainless steel cartridge bearings.

Disc mount

Disc Center Lock.

Axes

Supplied with front and rear end caps for 12 mm thru-axles.

Freewheel bodies available

• SRAM XDR
• SRAM / Shimano Road

Tire compatibility

Compatible tires

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

Key point of vigilance

The Zipp 303 XPLR S B1 is only compatible with approved tires. This is essential to ensure safety, performance, and proper functioning of the wheel/tire system.

Specifically optimized tires

The Goodyear XPLR Slick and Goodyear XPLR Inter tires are specifically designed and optimized for the Zipp 303 XPLR S B1.

Maximum pressure

50 psi / 3.45 bar.

Braking

Brake type

Disc brake.

Disk interface

Center Lock.

Weight and maximum load

Weight of the pair

1610 g.

Based on the advertised weight

Estimated weight for the lightest configuration: 12mm thru axles and XDR body. Rim tape and valve included in the weight.

Maximum recommended system weight

135 kg.

Recommended use

• Gravel performance
• Gravel race
• Long distances on tracks and degraded roads
• Fast tracks with wide tires
• Low pressure tubeless mounts
• Demanding gravel rides with a focus on performance and comfort

Technical specifications

• Brand: Zipp
• Model: 303 XPLR S B1
• Model ID: WH-303-XPS-B1
• 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
• Rim profile: symmetrical
• Finish: UD fiber with adhesive decorations
• Front hub: Zipp 76D
• Rear hub: Zipp 176D
• Freehub body: SRAM XDR or SRAM / Shimano Road
• Bearings: stainless steel cartridge
• Braking: Center Lock disc
• Maximum pressure: 50 psi / 3.45 bar
• Weight of the pair: 1610 g
• Maximum recommended system weight: 135 kg
• Sticker color: white

Guarantee

Zipp Lifetime Warranty

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

Why choose the Zipp 303 XPLR S B1 wheelset?

• Pair of fast, robust and high-performance carbon gravel wheels
• Massive 32mm internal width for wide gravel tires
• 54mm rim profile designed for aerodynamic efficiency on gravel bikes
• Compatible with approved Tubeless Ready tires from 40 to 61 mm
• Allows for low-pressure driving to reduce vibrations
• Improves cornering grip and uphill traction
• Application of Total System Efficiency technology to gravel
• Reliable Zipp 76D / 176D hubs with stainless steel bearings
• Available in SRAM XDR or SRAM / Shimano Road
• Center Lock disc mount
• Advertised weight of 1610 g
• Zipp Lifetime Warranty