# 27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High – XC/Trail

Take a lighter wheelset to the race start or a long-day trail session and feel the difference in acceleration, climbing and handling. This 27.5" superlight carbon rim is engineered to shave rotational mass while preserving the stiffness and strength needed for technical XC and all-mountain terrain. Its 34mm inner channel and 30mm rim height deliver tire support and lateral rigidity for modern trail tires.

## 27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High - Designed for XC and all-mountain trail riding

Ride with confidence on mixed singletrack and technical climbs: the rim's verified superlight 390g ±10g construction reduces inertia for snappier acceleration, and the carbon layup is optimized to balance low weight with impact resistance. The hookless, U-shaped profile supports contemporary tubeless tires and helps reduce pinch-flat risk when run within recommended pressures.

### Why it fits your routine

-   **Lightweight performance:** Verified weight of 390g ±10g (superlight) lowers rotational mass to improve acceleration and climbing for XC and endurance-focused riders.
-   **Tire support and stability:** 34mm inner width pairs well with 2.3"–2.6" tires to enhance sidewall support, traction and predictable handling on loose or uneven surfaces.
-   **Balanced geometry:** 30mm rim height increases lateral/torsional stiffness for stable cornering and control on technical descents without excessive weight.
-   **Modern compatibility:** Hookless, U-shaped profile designed for tubeless setups with most contemporary MTB tires when appropriate pressure limits are observed.
-   **Strength and reliability:** Forward compressive strength >300kg and lateral torsion resistance >50kg provide robust performance under trail impacts and dynamic loads.
-   **Precision build:** ERD 540mm, spoke hole tension >280kg and dynamic equilibrium imbalance <3g support reliable wheel building and long-term wheel stability.
-   **Quality control and warranty:** Rims are tested to ISO4210-7:2014(E) standards and include a 3-year limited warranty against manufacturing defects.

Designed for riders, teams and brands seeking a lightweight, high-performance rim for cross-country racing, endurance events and technical all-mountain trails, this rim strikes a deliberate balance between low mass and structural stiffness. It is not intended for gravity or enduro disciplines that demand heavier profiles above 500g. The superlight option offers a verified 390g ±10g weight, while a standard 440g ±15g option is available for those prioritizing additional robustness.

Technical dimensions and compatibility notes include a 27.5" (650B) diameter, 34mm inner and 40mm outer width, hookless U-shape profile, ERD 540mm, and suitability for tires in the 2.3"–2.6" range when used with appropriate tubeless setup procedures and pressure limits.

## Details

- **Price:** 310.0 USD - 320.0 USD
- **Type:** Mountain Bike Carbon Rim
- **Tags:** 27.5 MTB rim, 34mm inner rim, carbon mountain bike rim, mtb, rims, superlight MTB rim, XC trail bike rim

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| UD Matt / 28/28 / Normal | 310.00 USD | In stock |
| UD Matt / 28/28 / Super Light | 320.00 USD | In stock |
| UD Matt / 32/32 / Normal | 310.00 USD | In stock |
| UD Matt / 32/32 / Super Light | 320.00 USD | In stock |
| UD Matt / Customs / Normal | 310.00 USD | In stock |
| UD Matt / Customs / Super Light | 320.00 USD | In stock |
| UD Glossy / 28/28 / Normal | 310.00 USD | In stock |
| UD Glossy / 28/28 / Super Light | 320.00 USD | In stock |
| UD Glossy / 32/32 / Normal | 310.00 USD | In stock |
| UD Glossy / 32/32 / Super Light | 320.00 USD | In stock |
| UD Glossy / Customs / Normal | 310.00 USD | In stock |
| UD Glossy / Customs / Super Light | 320.00 USD | In stock |
| Marble Matt / 28/28 / Normal | 310.00 USD | In stock |
| Marble Matt / 28/28 / Super Light | 320.00 USD | In stock |
| Marble Matt / 32/32 / Normal | 310.00 USD | In stock |
| Marble Matt / 32/32 / Super Light | 320.00 USD | In stock |
| Marble Matt / Customs / Normal | 310.00 USD | In stock |
| Marble Matt / Customs / Super Light | 320.00 USD | In stock |
| Marble Glossy / 28/28 / Normal | 310.00 USD | In stock |
| Marble Glossy / 28/28 / Super Light | 320.00 USD | In stock |
| Marble Glossy / 32/32 / Normal | 310.00 USD | In stock |
| Marble Glossy / 32/32 / Super Light | 320.00 USD | In stock |
| Marble Glossy / Customs / Normal | 310.00 USD | In stock |
| Marble Glossy / Customs / Super Light | 320.00 USD | In stock |

## Images

- 27.5" Superlight Carbon MTB Rim set, 34mm inner width, 30mm height, designed for XC and trail use, featuring UCI logo and war
- Bola 27.5 inch carbon MTB rim side profile showing hookless bead and 34mm internal width
- Hookless rim detail of Bola 27.5 carbon MTB rim, optimized for tubeless tires, XC and trail
- 27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High – XC/Trail Carbon Fiber Sporting Goods
- 27.5" Superlight Carbon MTB Rim, 34mm Inner, 30mm High – XC/Trail Carbon Fiber Sporting Goods

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> Source: [Bola Carbon Wheelset ](https://bolacarbon.com/products/27-5-superlight-carbon-mtb-rim-34mm-30mm)
> Updated: 2026-08-03