Carbon Fiber Sporting Goods
Bola EXP 50T 50mm Tubular Carbon Rim Brake Wheelset – DT240S, Sapim CX Ray, 25/28mm, 1230g
Bola EXP 50T 50mm Tubular Carbon Rim Brake Wheelset – DT240S, Sapim CX Ray, 25/28mm, 1230g
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Bola EXP 50T Tubular Carbon Rim Brake Wheelset offers a blend of low rotational mass (1230g ±20g), aerodynamic 50mm depth, and dependable braking for competitive road cyclists needing consistent performance on climbs and flats. This wheelset features a unidirectional matte carbon layup (T700/T800), 25mm or 28mm external width, and Sapim CX Ray spokes for reduced drag and higher tensile strength.
Key Features
- Rim Type: Tubular, 50mm deep, external widths of 25mm or 28mm
- Material: T700/T800 unidirectional matte carbon, EN 14781 certified
- Brake Surface: Basalt carbon track — stable, predictable braking for rim brake setups
- Hubset: DT Swiss 240S, straight-pull, 20f/24r spoke pattern
- Spokes: Sapim CX Ray, high-tensile aero bladed stainless steel
- Weight: 1230g ±20g (excludes QR, tires, cassette)
- Rider Weight Limit: Up to 120kg
- Country of Origin: China
- Use: Competitive racing, club rides, criteriums, endurance
Use Case Comparison
| Scenario | 25mm Rim | 28mm Rim |
|---|---|---|
| Climbing/Weight Savings | Lower weight, improved responsiveness | Marginally heavier, better stability |
| Aero/High-Speed | More agile, suitable for narrow tires (23–25c) | Enhanced aero for 25–28c tires, reduced drag |
| Tire Compatibility | Ideal for 25c racing tires | Accommodates up to 30c for more grip, comfort |
Situational Insights
- 1230g Wheelset Comparison: Lighter than most 50mm-depth competitors, making it suitable for riders pursuing both agility on climbs and aero gains on flats.
- Basalt Brake Track: Thermal-resistant and consistent, preferred by club racers seeking reliable modulation in variable conditions.
- Use With 25–30c Tires: The rim widths match current pro peloton and club race standards, ensuring optimal interface for rolling resistance and grip.
Frequently Asked Questions
Are 50mm carbon tubular rim brake wheels good for both climbing and aero performance?
Yes. With a 1230g weight, the Bola EXP 50T balances low rotational mass for climbs and a 50mm deep profile for aerodynamic benefit on flats or descents.
How does a 1230g carbon wheelset compare to other lightweight road options?
At 1230g, this set is lighter than many similar 50mm tubular and clincher wheelsets (which often range 1250–1400g), providing noticeable climbing advantage without sacrificing aero properties.
What is the difference between 25mm and 28mm carbon wheelsets for road bikes?
The 25mm option offers marginally lower weight and is ideal for 23–25c tires, while the 28mm rim provides better tire support for 25–30c, enhancing aerodynamic efficiency and handling stability.
Is a basalt braking surface better for predictable stopping power on rim brake wheels?
Basalt tracks increase heat resistance and improve consistency under prolonged braking, making them more reliable for descents and variable weather compared to standard carbon tracks.
What wheelset is best for club racing with 25c to 30c road tires?
The Bola EXP 50T in 25mm or 28mm width is compatible with 25–30c tubular tires, aligning with modern club racing preferences for grip and aero balance.
