700c 34mm Wide Carbon Road & Gravel Rim | 45mm& 50mm Wavy profile| Disc Brake | 24 Spoke | 385–460g

700c 34mm Wide Carbon Disc Brake Rim — 45mm & 50mm Depth

A wide-profile, high-modulus carbon fiber rim engineered for 700c disc brake road, gravel, and endurance builds. Available in 45mm and 50mm depths with a 34mm external width and 25mm internal width, this rim is compatible with tubeless and clincher tire setups. Weight options range from 460g (standard) down to 385g (extreme light), giving teams and individual builders precise weight-to-durability control.

Key Specifications

Weight Variants

Note: Lower weight grades use a more aggressive fiber layup schedule. For rider weights above 100 kg or rough gravel courses, the Standard or Superlight grade is recommended for additional structural margin.

Structural Strength Ratings

• Forward Compressive Strength: >300 kg
• Lateral Torsion Resistance: >50 kg
• Spoke Hole Tension: >280 kg

45mm vs 50mm Depth — Which to Choose?

The 45mm depth (34mm external width) offers a better crosswind stability profile and is preferred for mixed-terrain gravel racing, climbing stages, and endurance road events where handling precision is critical. The 50mm depth (31mm external width) delivers greater aerodynamic efficiency on flat or rolling courses, making it a common choice for criterium, triathlon, and flat gran fondo applications. Both depths share identical internal width (25mm), spoke count (24H), and structural ratings.

Tubeless & Disc Brake Compatibility

The 25mm internal width accepts tire widths from 28mm to 50mm, accommodating tubeless-ready road tires (28–32mm), gravel tires (35–45mm), and light all-road tires. The disc-brake-only rim bed eliminates brake track wear, and the UV wave profile provides a consistent bead seat geometry for tubeless installation. No rim tape is required for tubeless setups when used with compatible valves and sealant.

Customization Options

• Valve hole diameter: 6.5mm standard or custom
• Spoke hole diameter: 4.5mm standard or custom
• Assembly hole diameter: 7.5mm standard or custom
• Nipple angle: Front 7°, Rear 5° & 7°, or custom offset
• Logo, decal, and color customization available for OEM and team orders

Frequently Asked Questions

Is a 34mm wide carbon rim suitable for gravel riding or only road cycling?

Yes. The 25mm internal width of this rim comfortably accommodates gravel tires up to 45mm wide, making it well-suited for gravel endurance and mixed-surface racing. The wider internal channel improves tire casing support and reduces pinch flat risk compared to rims under 21mm internal width.

How much weight can I save by choosing the extreme light (385g) grade over standard (460g)?

Switching from the 460g standard to the 385g extreme light grade saves 75g per rim, or approximately 150g per wheelset. At typical road build weights, this is a measurable reduction. However, the extreme light layup has a tighter structural margin; it is best suited for riders under 75 kg on road-only surfaces.

What is the difference between 45mm and 50mm depth for climbing vs flat roads?

The 45mm depth offers a lower aerodynamic drag penalty in crosswinds and a marginally lower rim weight, making it the preferred choice for climbing and technical courses. The 50mm depth provides greater aerodynamic advantage on flat or rolling terrain above approximately 38 km/h. For a general-purpose disc brake build, the 45mm depth is the more versatile option.

What should I look for in a wide carbon rim for a tubeless disc brake setup?

Key parameters include: internal width ≥23mm for road tubeless or ≥25mm for gravel tubeless, a hooked or hookless bead seat profile, flatness tolerance ≤0.2mm for reliable tubeless seating, and a valve hole diameter compatible with your valve stem (6.5mm accommodates most standard road valves). This rim meets all four criteria.

Does this rim support both clincher and tubeless tire systems?

Yes. The UV wave hooked profile is compatible with both standard clincher tires and tubeless-ready tires. Tubeless installation requires a compatible tubeless valve and sealant; no additional rim tape is required due to the sealed bead channel design.