# Asymmetric Carbon 29er MTB Rim, 23mm Height, 30mm Inner Width, 300–380g, Hooked Bead for XC and All-Mountain

When the trail tightens and every gram matters on climbs, this asymmetric carbon 29er rim balances low rotational weight with the tyre volume needed for confident cornering and traction. It’s engineered for riders who alternate between race-day cross-country efforts and technical all-mountain descents, supporting modern tyre sizes and tubeless setups.

## Asymmetric Carbon 29er MTB Rim - Designed for XC and All-Mountain

The 23 mm rim height keeps rotational inertia low for quicker acceleration and nimble handling, while a 30 mm inner width accommodates high-volume tyres (roughly 2.2–2.6 in) at recommended pressures. Available in three weight tiers—Standard (380 ± 15 g), Superlight (330 ± 10 g), and Ultralight (300 ± 10 g)—this hooked U-shape rim is compatible with clincher and tubeless-ready tyres when built with tubeless tape and valves.

The asymmetric left 5° / right 7° offset corrects spoke-tension imbalance on driven rear wheels, improving wheel symmetry and fatigue life when built with an asymmetric-aware lacing pattern. Structural tolerances and strength figures are specified for dependable performance under typical XC and trail loads.

### Why it fits your routine

-   **Wide tyre support:** 30 mm inner width is matched to 2.2–2.6 in tyres for improved traction, comfort, and rollover on mixed terrain.
-   **Low rotational weight options:** Choose Standard, Superlight, or Ultralight tiers to prioritise durability or climbing performance according to your riding style.
-   **Trail-ready strength:** Forward compressive strength >300 kg and lateral torsion resistance >50 kg suit riders up to the 100 kg limit stated for this rim.
-   **Tubeless-ready hooked bead:** U-shape hooked bead plus a 6.5 mm valve hole supports tubeless builds with appropriate tape and valves.
-   **Precision tolerances:** Dynamic imbalance <3 g, flatness <0.15 mm, and roundness <0.3 mm for predictable wheel behaviour and consistent truing.
-   **Customisable assembly:** Valve hole, spoke hole, and assembly hole diameters and nipple angles can be tailored to your wheelbuilder’s specification.

Suitable riding uses include cross-country racing with the Ultralight tier for weight savings, and trail or all-mountain duty with Standard or Superlight choices to balance durability and performance, while riders heavier than 100 kg should consider a more reinforced, higher-volume rim profile.

## Details

- **Price:** 310.0 USD - 320.0 USD
- **Type:** Mountain Bike Rim
- **Tags:** 29er MTB rim, 29er MTB wheels, all-mountain carbon rim, asymmetric carbon rim, asymmetric rim, cross-country carbon rim, lightweight mountain bike rim, mountain bike upgrade, mtb, responsive mtb wheelset, rims, trail bike rim, tubeless ready rim, wide tire mountain bike rim, XC bike rim

## Variants

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

## Images

- Asymmetric Carbon 29er MTB Rim set, 23mm high, 30mm inner width, lightweight design for XC and All-Mountain use.
- Asymmetric Carbon 29er MTB Rim diagram showing dimensions: 23mm height, 30mm inner width, and 592mm ERD.
- Asymmetric Carbon 29er MTB Rim showing a cross-section with a 23mm height and 30mm inner width. Lightweight design for XC/All
- 29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro Carbon Fiber Sporting Goods
- 29er Asymmetric Carbon MTB Rim | 30mm Height, 30mm Inner Width | Freeride & Enduro Carbon Fiber Sporting Goods

## Additional Information

- **Related products settings:** ahead
- **AI Summary:** The Asymmetric Carbon 29er Rim is a carbon rim for 29er cross-country and all-mountain riders building a lightweight wheelset for racing, trail riding, or wide-tire touring. Its hooked asymmetric design is intended for riders who need a tubeless-ready or clincher-compatible rim with custom wheel-building options.

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> Source: [Bola Carbon Wheelset ](https://bolacarbon.com/products/asymmetric-carbon-29er-mtb-rim)
> Updated: 2026-08-03