# Bola EXT 40R 700C Carbon Disc Wheelset – 40mm Aero, Hyper Carbon Spokes, Ceramic Hub

Ready for long road miles and variable gravel routes, the Bola EXT 40R wheelset blends aerodynamic depth with lightweight construction so you can ride farther, climb quicker, and stay composed on mixed surfaces. It’s engineered as a single versatile wheelset for riders who want race-level stiffness and tubeless-ready comfort without carrying multiple wheel builds. The set’s 1170g pair weight and tubeless optimization make it practical for training, racing, and adventure rides alike.

## Bola EXT 40R 700C Carbon Disc Wheelset - Designed for road and gravel versatility

The 40mm T800 UD carbon rim profile is shaped to balance aerodynamic gains and crosswind stability, while Hyper carbon spokes and TPI ceramic hub bearings deliver responsive acceleration and low rolling resistance. Available internal widths of 21mm or 24mm support 28–32c tubeless tyres for greater comfort, improved traction, and fewer flats on varied terrain.

### Why it fits your routine

-   **Lightweight performance:** 1170g pair weight reduces rotational mass for easier climbing and quicker accelerations.
-   **Aero and stability:** 40mm rim depth provides aerodynamic benefits for road speed while preserving predictable handling on gravel and in crosswinds.
-   **Tubeless-optimized widths:** Choose 21mm or 24mm internal width to run 28–32c tubeless tyres for lower pressures, improved grip, and rollover over rough surfaces.
-   **High-stiffness build:** Hyper carbon flat aero spokes (20/20) and a U-shaped rim profile deliver lateral stiffness for efficient power transfer and precise cornering.
-   **Smooth, durable hubs:** BL180 aluminium hubs with TPI ceramic bearings and a 54T ratchet engagement offer fast engagement and low friction under load.
-   **Compatibility and standards:** Center Lock rotor compatibility, axle spacing 12x100mm front and 12x142mm rear, ISO 4210-7 certified safety testing, and REACH environmental compliance.
-   **Durability and support:** 24-month limited warranty covering rims, hubs, and spokes gives peace of mind for daily training or event use.

Engineered for riders, teams, and shops seeking a cost-effective OEM/ODM carbon wheelset, the Bola EXT 40R offers a race-capable combination of T800 UD carbon construction, tubeless-ready rim options, Hyper carbon spokes, and TPI ceramic-bearing hubs to perform across endurance rides, racing, and mixed-surface adventures.

## Details

- **Price:** 1111.0 USD
- **Type:** Carbon Road & Gravel Disc Wheelsets
- **Tags:** 28mm wide, 30mm wide, 40mm, 700c, 700C carbon wheelset, 700C wheelset, aero carbon spoke wheelset, Bola EXT 40R, carbon disc brake wheels, carbon disc wheelset, carbon spokes, ceramic hub wheelset, disc, lightweight bike wheels, OEM ODM carbon wheels, road, road gravel wheel upgrade, T800 carbon wheels, tubeless, tubeless ready carbon wheels, wheels, wheelset

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| 30/24mm / Shimano HG / Black Bola | 1111.00 USD | In stock |
| 30/24mm / Shimano HG / White Bola | 1111.00 USD | In stock |
| 30/24mm / Shimano HG / Customized | 1111.00 USD | In stock |
| 30/24mm / Sram  XDR / Black Bola | 1111.00 USD | In stock |
| 30/24mm / Sram  XDR / White Bola | 1111.00 USD | In stock |
| 30/24mm / Sram  XDR / Customized | 1111.00 USD | In stock |
| 30/24mm / Compy / Black Bola | 1111.00 USD | In stock |
| 30/24mm / Compy / White Bola | 1111.00 USD | In stock |
| 30/24mm / Compy / Customized | 1111.00 USD | In stock |
| 28/21mm / Shimano HG / Black Bola | 1111.00 USD | In stock |
| 28/21mm / Shimano HG / White Bola | 1111.00 USD | In stock |
| 28/21mm / Shimano HG / Customized | 1111.00 USD | In stock |
| 28/21mm / Sram  XDR / Black Bola | 1111.00 USD | In stock |
| 28/21mm / Sram  XDR / White Bola | 1111.00 USD | In stock |
| 28/21mm / Sram  XDR / Customized | 1111.00 USD | In stock |
| 28/21mm / Compy / Black Bola | 1111.00 USD | In stock |
| 28/21mm / Compy / White Bola | 1111.00 USD | In stock |
| 28/21mm / Compy / Customized | 1111.00 USD | In stock |

## Images

- Bola EXT 40R 700C Carbon Disc Wheelset – 40mm, Aero Carbon Spokes, 1170g, Ceramic Hub Carbon Fiber Sporting Goods
- Bola EXT 40R 700C Carbon Disc Wheelset – 40mm, Aero Carbon Spokes, 1170g, Ceramic Hub Carbon Fiber Sporting Goods
- Bola EXT 40R 700C Carbon Disc Wheelset – 40mm, Aero Carbon Spokes, 1170g, Ceramic Hub Carbon Fiber Sporting Goods

## Additional Information

- **Product rating count:** 2
- **Related products settings:** ahead
- **Hub Model:** BL 180 54T
- **Rim Depth (mm):** 40
- **Rim Width (mm, external):** 30
- **Wheelset Weight (grams):** 1170
- **Spoke:** carbon spokes
- **Bearing:** TPI Ceramic

---

> Source: [Bola Carbon Wheelset ](https://bolacarbon.com/products/bola-ext-40r-carbon-disc-wheelset)
> Updated: 2026-08-02