Carbon Fiber Sporting Goods
Bola EXP 50T 50mm Tubular Carbon Rim Brake Wheelset – DT240S Hubs, Sapim CX-Ray, 25/28mm, 1230g
Bola EXP 50T 50mm Tubular Carbon Rim Brake Wheelset – DT240S Hubs, Sapim CX-Ray, 25/28mm, 1230g
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Optimized for climbers and aero-focused racers, the Bola EXP 50T Tubular Carbon Rim Brake Wheelset delivers a lightweight build (1230g ±20g), 50mm aerodynamic profile, and proven DT240S hubs for responsive acceleration. Available in 25mm or 28mm external rim widths, it ensures compatibility with 25–30c tubular tires and meets EN 14781 standards for durability and performance in competitive scenarios.
Overview of 50mm Tubular Carbon Rim Brake Wheels
- Rim: Tubular, 50mm depth, 25mm or 28mm external width, unidirectional matte T700/T800 carbon, EN 14781 certified
- Brake Track: Basalt reinforced carbon for heat resistance and consistent rim brake feel
- Hubs: DT Swiss 240S, straight-pull, 20f/24r spoke config
- Spokes: Sapim CX Ray, aero bladed stainless steel, optimized for low drag and high tensile strength
- Weight: 1230g ±20g (excludes QR, tires, cassette), rider limit: 120kg
- Manufactured: China – Bola Carbon Sporting Goods
Performance Insights
- Climbing & Aero Balance: 1230g weight allows agile handling on steep terrain while the 50mm deep rim delivers measurable aerodynamic benefit at higher speeds.
- Rim Width Selection: 25mm suits 23–25c tubulars for lower rolling resistance; 28mm offers increased lateral stability with 25–30c tires for enhanced grip and comfort.
- Braking: Basalt carbon track resists heat buildup, ideal for variable conditions and demanding descents, with predictable modulation versus standard carbon tracks.
25mm vs 28mm Rim Comparison
| Metric | 25mm Rim | 28mm Rim |
|---|---|---|
| Weight | Lighter | Marginally heavier, more stable |
| Tire Fit | 23–25c | 25–30c |
| Aero Benefit | Agile response, less side area | Reduced drag with wider tires, improved control |
| Ride Feel | Sharp, race-tuned | Stability on descents and in crosswinds |
Situational Use
- Competitive racing: Meets modern pro peloton and club preferences for low total system weight and aerodynamic gain.
- Criteriums: 50mm depth supports fast accelerations; Sapim spokes and DT240S hubs maximize stiffness and reduce lag.
- Endurance rides: Reliable brake track and carbon layup support long descents with reduced fatigue risk.
Frequently Asked Questions
Are 50mm carbon tubular rim brake wheels good for both climbing and aero performance?
With a measured weight of 1230g and 50mm depth, this wheelset balances low rotational mass for climbing with aerodynamic properties for speed on flats and descents, matching modern club and pro racing standards.
How does a 1230g carbon wheelset compare to other lightweight road options?
At 1230g, it is lighter than most competing 50mm tubular and clincher wheelsets on the market (typical range 1250g–1400g), offering a noticeable advantage for sustained climbs and repeated accelerations.
What is the difference between 25mm and 28mm carbon wheelsets for road bikes?
The 25mm rim is suited to 23–25c tires with lower rolling resistance, while 28mm offers more support for 25–30c tires, increasing stability and aerodynamic synergy for wider tire setups.
Is a basalt braking surface better for predictable stopping power on rim brake wheels?
Basalt carbon brake tracks raise heat dissipation, improve braking consistency under repeated deceleration, and minimize fade compared to standard carbon brake tracks, especially during prolonged descents.
What wheelset is best for club racing with 25c to 30c road tires?
This wheelset’s 25mm and 28mm external width options are optimized for 25–30c tubular tires, providing aerodynamic efficiency and handling aligned with contemporary club racing requirements.
Advanced Carbon Rim Design
The Bola EXP 50T wheelset features 50mm tubular carbon rims specifically designed for rim brake performance. Its 25mm internal and 28mm external widths provide a perfect balance of aerodynamic efficiency and tire compatibility. The rims are engineered to optimize braking power while maintaining low weight at just 1230 grams per set, making them ideal for competitive cyclists who demand responsiveness and control. This combination ensures a smooth ride, enhanced speed, and consistent stopping power on various terrains.
Elite DT240S Hubs & Sapim CX-Ray Spokes
Equipped with renowned DT240S hubs, these wheels deliver exceptional durability, smoothness, and reliability. The hubs incorporate high-quality bearings for minimal rolling resistance and a solid engagement feel. Complementing the hubs, Sapim CX-Ray spokes contribute to the wheelset’s strength while maintaining a lightweight profile. This pairing optimizes overall wheel stiffness and responsiveness, translating to better power transfer and a more confident riding experience on demanding road conditions.
Ideal Specifications for High-End Performance
The Bola EXP 50T wheelset's specifications reflect its race-ready design. With a weight of 1230 grams and aerodynamic rim dimensions of 25/28mm, it balances speed, stability, and climbing efficiency. Designed as tubular, these carbon rim brake wheels suit riders who prefer high-performance setups for competitive racing or enthusiast riding. The precise build and premium materials ensure long-lasting performance while staying compatible with a wide range of tubular tires for versatile use.
