Carbon Fiber Sporting Goods
Bola ST 50T 50mm Carbon Road Wheelset | DT Swiss 350S | Tubular Rim Brake | 25mm/28mm
Bola ST 50T 50mm Carbon Road Wheelset | DT Swiss 350S | Tubular Rim Brake | 25mm/28mm
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The Bola ST 50T is a 50mm carbon tubular rim brake wheelset engineered for competitive road cyclists seeking a balance of low weight, aerodynamic efficiency, and proven durability. At 1270g ±20g per set, it leverages DT Swiss 350S hubs, Sapim CX-Ray spokes, and a basalt carbon braking surface. Choose between 25mm or 28mm external rim widths to optimize handling for your terrain and tire selection. Certified to EN 14781 standards, the Bola ST 50T performs in high-speed stage racing, endurance events, and challenging descents.
Premium 50mm Tubular Carbon Road Wheels for Performance and Durability
- Rim Material: T700/T800 High Modulus UD Matte Carbon
- Rim Depth: 50mm
- Rim Width (external): 25mm or 28mm
- Brake Surface: Basalt Carbon (rim brake only)
- Spokes: Sapim CX-Ray, 20 front (radial), 24 rear (2-cross)
- Hub Model: DT Swiss 350S (standard quick-release)
- Weight: 1270g ±20g (set, without accessories)
- Tire Compatibility: Tubular, 25c–30c tires
- Certification: EN 14781
- Max Rider Weight: 100kg
- Warranty: 2 years
- Country of Origin: China
Performance & Real-World Application
This wheelset is suited for UCI-style road race formats, long climbs, and alpine descents where reduced rotational inertia matters. The 25mm rim adds agility for hilly and mixed routes, while the 28mm width better supports larger modern tubular tires—offering more stability at speed and over rougher tarmac. While tubular construction requires more installation skill and field repair effort than clinchers or tubeless models, racers often value the improved road feedback and ability to run higher pressures.
The basalt carbon brake track improves heat resistance; for best performance, always use carbon-specific brake pads and periodically monitor rim temperature during extended descents. The EN 14781 certification confirms compliance with industry safety standards for use in competitive cycling.
Comparison Table: Bola ST 50T vs. Alternatives
| Model | Rim Depth | Rim Width | Weight (pair) | Brake Type | Certifications |
|---|---|---|---|---|---|
| Bola ST 50T | 50mm | 25/28mm | 1270g ±20g | Rim Brake | EN 14781 |
| DT50S Disc | 50mm | 25mm | ~780g (rim only) | Disc Brake | — |
| HUNT 50 Carbon | 50mm | 22mm int. | 1468g | Disc Brake | — |
| 7 Spoke 50mm Tubular | 50mm | 25mm | 355g (rim only) | Rim Brake | — |
Known Trade-Offs
- Tubular tires: require glue or tape mounting; more labor to install/repair vs clinchers, but preferred by many racers for road feel and decreased rolling mass.
- Rim brake configuration: lighter than disc equivalents but may require attention to heat build-up on extended, steep descents.
Use Case Recommendations
- Stage and circuit racing (UCI/EN 14781 compliant): optimized aerodynamics, rapid acceleration, minimal rotating weight
- Endurance rides or events: reliable braking, long-term fatigue reduction, compatibility with higher tire pressures
- Climbing and alpine gran fondos: low weight aids acceleration; basalt braking surface resists fade on heat-intensive descents
Frequently Asked Questions
Are 50mm deep carbon tubular wheels good for road racing?
50mm deep carbon tubular wheels, such as the Bola ST 50T, deliver a balance of aero benefit, low rotational weight, and direct handling ideal for road racing and criteriums. Many experienced racers choose them for both sprint and endurance formats.
How does a 1270g carbon wheelset with DT 350 hubs compare to other lightweight wheelsets?
The Bola ST 50T is among the lighter tubular rim brake wheelsets available. Its complete 1270g weight (without accessories) undercuts many wide tubeless/disc-brake competitors, aiding acceleration and climbing for riders seeking marginal gains.
What's better for hilly terrain, 25mm or 28mm wide tubular carbon rims?
25mm width is typically favored for hilly, technical circuits due to reduced overall weight and nimble handling, whereas 28mm rims accommodate wider tires for greater stability and support at speed or over rougher surfaces. Match to your typical tire size and race conditions.
Can these rim brake carbon wheels handle long descents without overheating?
The basalt carbon braking surface improves heat management in sustained braking. For best performance and safety, use carbon-specific brake pads and monitor rim temperature during extended alpine descents.
Is this wheelset a good upgrade for improving acceleration and speed on my road bike?
Reducing complete wheelset weight to 1270g results in more rapid accelerations and increased climbing efficiency, noticeable during repeated surges and climbs common in road racing disciplines.
Exceptional Lightweight Carbon Construction
The Bola ST 50T 50mm tubular carbon road wheels offer riders a perfect balance of weight and strength. Crafted with high-quality carbon fiber, these wheels are designed to reduce rotational mass, improving acceleration and climbing efficiency. Their sleek 50mm rim depth enhances aerodynamic performance without compromising handling in crosswinds. Ideal for riders seeking a lightweight upgrade, these wheels deliver an excellent ride feel, compatible with demanding road conditions and tubular rim brakes.
Precision Engineering with DT Swiss 350S Hubs
Equipped with DT Swiss 350S hubs, the Bola ST 50T wheelset ensures smooth and reliable performance. Known for their durability and outstanding engagement mechanics, these hubs provide consistent power transfer and efficient rolling resistance. The combination of these hubs with the tubular rim brake setup guarantees precise braking control, making them a top choice for competitive cyclists and enthusiasts seeking dependable wheel performance under strenuous conditions.
Versatile Rim Width Options for Optimized Tire Compatibility
The Bola ST 50T wheelset comes in two rim widths, 25mm and 28mm, catering to a wide range of tire choices for enhanced comfort and grip. The wider rim profile supports modern tires, offering better tire stability and improved cornering capabilities without added weight. This versatility allows riders to customize their setup for diverse road surfaces, ensuring optimal comfort and performance whether sprinting on smooth tarmac or navigating twisty descents.
