40mm Carbon Road Rim Tubeless Ready — 36mm Outer / 30mm Inner, 700C, Weight 365–445g

When you need a rim that accelerates quickly on climbs, soaks up rough pavement on long days, and adapts to custom wheel builds, this 40mm carbon road rim delivers. Tubeless-ready and available in verified weight tiers, it suits competitive racers, endurance riders, and workshop-built wheelsets looking for a balance of lightness, strength, and broad tire compatibility.

40mm Carbon Road Rim Tubeless Ready - Designed for competitive and endurance riding

The 30mm internal width and 36mm external width create a stable tyre platform that improves ride comfort and control across fast road courses and mixed-surface endurance routes. Offered in four weight tiers—from Standard to Extreme Light—this rim lets teams and individuals align rim stiffness and fatigue resistance with rider weight and intended use.

Why it fits your routine

• Versatile tyre compatibility: 30mm internal width accommodates 25c–50c tyres (recommended 25c–50c range; optimal 28c–45c for endurance and light gravel).
• Tubeless-ready security: Hooked UV bead profile and 6.5mm valve hole support reliable tubeless setups and tubeless tape installation within the 100–125 psi operating window.
• Weight options for tuning performance: Choose Standard (445±15g), Superlight (410±10g), Ultralight (385±10g), or Extreme Light (365±10g) to balance rotational mass and durability.
• Proven structural strengths: Forward compressive strength >300 kg, lateral torsion resistance >50 kg, and spoke hole tension >280 kg for stable, reliable performance.
• Precise manufacturing tolerances: Dynamic equilibrium <3g imbalance, flatness tolerance <0.15mm, roundness tolerance <0.3mm for predictable handling and true wheels.
• Frame and tyre clearance: Fits standard 700C road, endurance, and gravel frames with a minimum 40mm rim clearance; verify frame clearance before ordering.
• Customizable for OEM builds: Valve hole diameter, spoke hole diameter, nipple angles (standard 7° front, 5° & 7° rear) and drill options are available on request for brand and team builds.
• Rim profile and compatibility: 40mm rim height with hooked UV shape is compatible with standard road tubeless tires but not hookless-only tires.
• Rider limits and usage guidance: Maximum rider weight 120 kg; lighter layups use reduced laminate schedules so Standard or Superlight tiers are recommended for riders above 90 kg or high-torque sprint applications.
• Build-ready dimensions: ERD 558mm and spoke hole diameter typically 4.5mm, with customization available for assembly requirements.

Engineered to support both fast road work and long-distance comfort, this 40mm tubeless-ready carbon rim blends lightweight construction with structural performance data and customization options to suit workshop builds and OEM orders.