{"product_id":"40mm-carbon-tubeless-road-rim-700c","title":"40mm Carbon Road Rim Tubeless Ready — 36mm Outer \/ 30mm Inner, 700C, Weight 365–445g","description":"\u003cp\u003eWhen 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.\u003c\/p\u003e\n\u003ch2\u003e40mm Carbon Road Rim Tubeless Ready - Designed for competitive and endurance riding\u003c\/h2\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch3\u003eWhy it fits your routine\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile tyre compatibility:\u003c\/strong\u003e 30mm internal width accommodates 25c–50c tyres (recommended 25c–50c range; optimal 28c–45c for endurance and light gravel).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubeless-ready security:\u003c\/strong\u003e Hooked UV bead profile and 6.5mm valve hole support reliable tubeless setups and tubeless tape installation within the 100–125 psi operating window.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight options for tuning performance:\u003c\/strong\u003e Choose Standard (445±15g), Superlight (410±10g), Ultralight (385±10g), or Extreme Light (365±10g) to balance rotational mass and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven structural strengths:\u003c\/strong\u003e Forward compressive strength \u0026gt;300 kg, lateral torsion resistance \u0026gt;50 kg, and spoke hole tension \u0026gt;280 kg for stable, reliable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise manufacturing tolerances:\u003c\/strong\u003e Dynamic equilibrium \u0026lt;3g imbalance, flatness tolerance \u0026lt;0.15mm, roundness tolerance \u0026lt;0.3mm for predictable handling and true wheels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame and tyre clearance:\u003c\/strong\u003e Fits standard 700C road, endurance, and gravel frames with a minimum 40mm rim clearance; verify frame clearance before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable for OEM builds:\u003c\/strong\u003e Valve hole diameter, spoke hole diameter, nipple angles (standard 7° front, 5° \u0026amp; 7° rear) and drill options are available on request for brand and team builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRim profile and compatibility:\u003c\/strong\u003e 40mm rim height with hooked UV shape is compatible with standard road tubeless tires but not hookless-only tires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRider limits and usage guidance:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild-ready dimensions:\u003c\/strong\u003e ERD 558mm and spoke hole diameter typically 4.5mm, with customization available for assembly requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEngineered 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 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