Carbon Fiber Sporting Goods
29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro
29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro
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29er Asymmetric Carbon MTB Rim — 30mm Height / 30mm Inner Width
A high-performance asymmetric carbon fiber mountain bike rim engineered for 29-inch freeride, enduro, and aggressive trail applications. Available in standard (455 ±10g) and superlight (385 ±10g) layups, with a 30mm inner width optimized for 2.3–2.6" tires and a U-shaped profile that balances lateral stiffness with vertical compliance.
Key Specifications
| Parameter | Value |
|---|---|
| Rim Size | 29er (622mm BSD) |
| Rim Shape | Asymmetric U-shape |
| Rim Height | 30mm |
| Outer Width | 36mm |
| Inner Width | 30mm |
| ERD | 579mm |
| Weight (Standard) | 455 ±10g per rim |
| Weight (Superlight) | 385 ±10g per rim |
| Forward Compressive Strength | >300kg |
| Lateral Torsion | >50kg |
| Spoke Hole Tension | >280kg |
| Dynamic Equilibrium | <3g |
| Flatness Tolerance | <0.15mm |
| Roundness Tolerance | <0.3mm |
| Nipple Direction | Left 5° / Right 7° (or customized) |
| Valve Hole Diameter | 6.5mm (or customized) |
| Spoke Hole Diameter | 4.5mm (or customized) |
| Assembly Hole Diameter | 7.5mm (or customized) |
| Tire Pressure Range | 45–65 psi |
| Max Rider Weight | 100kg |
Why Asymmetric Design?
The asymmetric spoke-bed offset redistributes spoke tension more evenly between drive-side and non-drive-side spokes. On a standard symmetric rim, drive-side spokes carry significantly higher tension, accelerating fatigue and increasing the risk of spoke breakage on high-torque trail riding. The asymmetric geometry reduces this imbalance, improving wheel durability and long-term trueness under load — a measurable advantage for freeride and enduro disciplines where repeated hard landings are the norm.
30mm Inner Width: Use-Case Context
A 30mm internal width is optimized for 2.3–2.5" MTB tires, providing a stable casing base that reduces sidewall squirm under hard cornering. Compared to a narrower 25mm rim, the wider bed lowers the effective tire pressure needed for traction while maintaining casing integrity. Note: Riders using tires wider than 2.6" may benefit from a 35mm inner width rim; contact us to discuss the right option for your build.
Customization Options
- Spoke hole count: configurable to rider and build requirements
- Hole diameters: valve, spoke, and assembly holes all customizable
- Nipple angle: Left 5° / Right 7° standard; custom angles available
- Branding: OEM/private label available for cycling brands and teams
- Superlight layup: 385 ±10g option for weight-sensitive XC/enduro builds
Quality & Warranty
Manufactured under ISO-compliant production processes with over a decade of supply experience to cycling brands in Europe and North America. Every rim undergoes dynamic equilibrium testing (<3g tolerance) and flatness verification (<0.15mm) before dispatch. Backed by a 3-year warranty against manufacturing defects.
Frequently Asked Questions
- Is this rim tubeless-compatible?
- The hookless U-shape profile is designed for tubeless-ready (TR) tire systems. Ensure your tire is rated for hookless rims and does not exceed 65 psi maximum inflation pressure.
- What tire width works best with a 30mm inner width rim?
- This rim is optimized for 2.3–2.6" MTB tires. A 30mm inner width provides an ETRTO-compliant mounting base for this tire range, balancing sidewall support and volume.
- How does 385g compare to other lightweight 29er carbon MTB rims?
- The superlight layup at 385 ±10g places this rim in the competitive range for carbon 29er enduro rims, which typically span 360–430g depending on width and height profile.
- Can I use this rim for aggressive freeride or jump riding?
- Yes. The forward compressive strength (>300kg) and spoke hole tension resistance (>280kg) are rated for the high-impact loads associated with freeride and jump disciplines, within the 100kg rider weight limit.
- Is OEM or private label available?
- Yes. We supply small to medium cycling brands and professional teams with OEM and private-label options. Contact us to discuss minimum order quantities and customization scope.
