Bola ST 50T 50mm Carbon Road Wheelset – DT Swiss 350S, Tubular Rim Brake, 25/28mm
Bola ST 50T 50mm Carbon Road Wheelset – DT Swiss 350S, Tubular Rim Brake, 25/28mm
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The Bola ST 50T 50mm carbon road wheelset is engineered for riders targeting aerodynamic performance, lightweight efficiency, and reliable braking on rim brake road bikes. Weighing just 1270g ±20g per set and built with DT Swiss 350S hubs, this tubular wheelset offers a competitive balance of stiffness, durability, and terrain versatility for road racers and cost-conscious cyclists looking for a proven wheel upgrade.
Key Features & Specs
- Wheelset Weight: 1270g ±20g (pair, without tires)
- Rim Material: T700/T800 high modulus UD matte carbon
- Rim Depth: 50mm (aero optimized for reduced drag)
- External Rim Width Options: 25mm or 28mm (select for tire and terrain compatibility)
- Brake Surface: Basalt carbon layer (rim brake, thermal resistance for long descents)
- Hub: DT Swiss 350S, straight pull, sealed bearings
- Spokes: Sapim CX-Ray, 20 front (radial), 24 rear (2-cross)
- Tire Compatibility: Tubular (use with 25–30c tubular tires; not tubeless-ready)
- Certifications: EN 14781 road wheel standard compliance
- Maximum Recommended Rider Weight: 100kg
- Warranty: 2 years (manufacturer defect coverage worldwide)
How it Compares
| Feature | Bola ST 50T | Performance Model (Bola EXP 50T) |
|---|---|---|
| Wheelset Weight | 1270g ±20g | 1230g |
| Hub Spec | DT Swiss 350S | DT Swiss 240S |
| Rim Depth | 50mm | 50mm |
| External Rim Width | 25mm/28mm | 25mm/28mm |
| Brake Surface | Basalt carbon (rim) | Basalt carbon (rim) |
| Spokes | Sapim CX-Ray | Sapim CX-Ray |
| Intended Use | Road, stage racing, endurance | Competitive, race-level |
| Warranty | 2 years | 2 years |
| Price Position | Mid-range, value-oriented | Premium, higher cost |
Recommended Use Cases
- Upgrading mid-tier aluminum wheels to lighter, aero carbon for improved speed and acceleration
- Road racing and criteriums where a 50mm profile balances aerodynamic benefit with stability in crosswinds
- Long-distance stage races and endurance events requiring dependable rim brake performance
- Hilly terrain where low wheelset weight aids in climbing and efficient power transfer
- B2B partners seeking a cost-effective, EN-certified carbon wheelset for retail or OEM/ODM supply
Frequently Asked Questions
Are 50mm deep carbon tubular wheels good for road racing?
Yes. 50mm deep carbon tubular wheels like the Bola ST 50T pair aerodynamic efficiency for flat sections with responsive handling for rolling terrain, making them a suitable upgrade for amateur and intermediate-level road racers.
How does a 1270g carbon wheelset with DT 350 hubs compare to other lightweight wheelsets?
The ST 50T’s 1270g weight is lighter than most mid-range carbon wheelsets with similar rim depth and outperforms many entry-level models using generic hubs. While flagship wheels with DT Swiss 240S or higher-end carbon spokes can be lighter, the ST 50T offers a strong stiffness-to-weight ratio at a more accessible price point.
What's better for hilly terrain, 25mm or 28mm wide tubular carbon rims?
For mixed or hilly terrain, 25mm rims with 25–28c tubular tires typically minimize system weight and improve climbing, while 28mm rims provide slightly improved comfort and tire stability, especially for rougher surfaces. Confirm wheel and brake clearance before choosing.
Can these rim brake carbon wheels handle long descents without overheating?
Yes, the basalt carbon braking surface on the ST 50T is engineered for increased thermal resistance. For best performance and rim longevity during long descents, use carbon-specific brake pads and allow for cooling intervals when necessary.
Is this wheelset a good upgrade for improving acceleration and speed on my road bike?
Upgrading to a 1270g carbon tubular wheelset reduces rotational mass, directly improving acceleration and responsiveness. Paired with Sapim CX-Ray spokes and DT Swiss 350S hubs, the ST 50T boosts riding speed and sprint capability compared with stock alloy wheelsets.
