# Bola ST 40T Carbon Road Wheelset 40mm Tubular, 25mm or 28mm Wide, DT Swiss 350S Hubs, 1200g

Take on mixed road profiles with confidence: the Bola ST 40T wheelset pairs a mid-depth 40mm rim with a lightweight 1,200g set weight so climbs feel sprightly while flats retain aerodynamic advantage. Choose 25mm or 28mm internal rim width to tune tire volume, comfort, and rolling behavior for your preferred rides, from long endurance days to fast training sessions.

## Bola ST 40T Carbon Road Wheelset - Designed for road cycling and endurance riding

The Bola ST 40T uses certified Toray T700/T800 unidirectional carbon to deliver consistent feel and predictable aero performance. Built with Sapim CX-Ray spokes and DT Swiss 350S hubs, the wheelset focuses on dependable engagement and easy servicing for riders upgrading from aluminum wheels or seeking a versatile race-train hybrid.

### Why it fits your routine

-   **Balanced rim depth:** 40mm profile offers aerodynamic benefit on flats and stability in rolling crosswinds while remaining manageable on climbs.
-   **Two width options:** 25mm or 28mm internal rim width supports 25c–30c tubular tires so you can prioritize lower weight and aero efficiency or increased comfort and grip.
-   **Lightweight performance:** 1200g ±20g per set reduces rotating mass to improve acceleration and climbing responsiveness.
-   **Reliable components:** DT Swiss 350S hubs provide proven durability and smooth engagement with straightforward maintenance.
-   **Construction quality:** Toray T700/T800 carbon layup balances strength, compliance, and longevity for regular road use.
-   **Rim brake tubular setup:** Classic braking interface and tubular tire benefits suited to riders who prefer traditional road racing equipment.
-   **Safety and certification:** EN 14781 tested and certified for riders up to 100kg, giving defined load limits for everyday and competitive use.
-   **Warranty support:** Two-year manufacturer coverage for defects provides after-sales confidence.

Designed for endurance rides, training and amateur to intermediate racing, the Bola ST 40T is a practical carbon upgrade that balances aerodynamic advantage, low weight, and component reliability for riders seeking measurable gains over standard aluminum wheelsets.

## Details

- **Price:** 860.0 USD
- **Type:** Carbon Road Wheelsets
- **Tags:** 25mm 28mm road rims, 25mm 28mm wide rims, 25mm wide, 28mm wide, 40mm, 40mm carbon road wheelset, 40mm rim depth, 700c, aero road cycling, Bola carbon wheels, Bola ST 40T wheels, carbon wheel upgrade, DT Swiss, DT Swiss 350S, DT Swiss 350s hub, DT Swiss 350S wheelset, endurance cycling wheels, lightweight carbon wheels, lightweight carbon wheelset, lightweight road wheels, rim brake, road, road bike upgrade, road bike wheels, Sapim CX-Ray, tubular, tubular rim brake, tubular rim brake wheelset, wheels, wheelset

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| 17/25 mm / Shimano HG / Black Bola | 860.00 USD | In stock |
| 17/25 mm / Shimano HG / White Bola | 860.00 USD | In stock |
| 17/25 mm / Shimano HG / Customized | 860.00 USD | In stock |
| 17/25 mm / Sram XDR / Black Bola | 860.00 USD | In stock |
| 17/25 mm / Sram XDR / White Bola | 860.00 USD | In stock |
| 17/25 mm / Sram XDR / Customized | 860.00 USD | In stock |
| 17/25 mm / Compy / Black Bola | 860.00 USD | In stock |
| 17/25 mm / Compy / White Bola | 860.00 USD | In stock |
| 17/25 mm / Compy / Customized | 860.00 USD | In stock |
| 21/28 mm / Shimano HG / Black Bola | 860.00 USD | In stock |
| 21/28 mm / Shimano HG / White Bola | 860.00 USD | In stock |
| 21/28 mm / Shimano HG / Customized | 860.00 USD | In stock |
| 21/28 mm / Sram XDR / Black Bola | 860.00 USD | In stock |
| 21/28 mm / Sram XDR / White Bola | 860.00 USD | In stock |
| 21/28 mm / Sram XDR / Customized | 860.00 USD | In stock |
| 21/28 mm / Compy / Black Bola | 860.00 USD | In stock |
| 21/28 mm / Compy / White Bola | 860.00 USD | In stock |
| 21/28 mm / Compy / Customized | 860.00 USD | In stock |

## Images

- Bola ST 40T DT Swiss 350S Carbon Road Wheelset – 40mm Tubular, Rim Brake, 25/28mm, 1200g Carbon Fiber Sporting Goods
- Bola ST 40T DT Swiss 350S Carbon Road Wheelset – 40mm Tubular, Rim Brake, 25/28mm, 1200g
- Bola ST 40T DT Swiss 350S Carbon Road Wheelset – 40mm Tubular, Rim Brake, 25/28mm, 1200g Carbon Fiber Sporting Goods

## Additional Information

- **Related products settings:** ahead
- **AI Summary:** The Bola ST 40T DT Swiss 350S Carbon Road Wheelset is a 1200 g tubular carbon wheelset for rim-brake road cyclists seeking a balanced setup for endurance riding, training, and amateur racing on rolling or hilly roads. Its 40 mm profile combines a mid-depth road format with DT Swiss 350S hubs and a choice of 25 mm or 28 mm internal rim width.
- **Hub Model:** DT Swiss 350s
- **Rim Depth (mm):** 40
- **Rim Width (mm, external):** 28
- **Wheelset Weight (grams):** 1200
- **Spoke:** Sapim CX Ray
- **Bearing:** DT Steel

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