Carbon Fiber Sporting Goods
Bola EXP 45R Carbon Disc Wheelset 700C – 45mm Deep, 28/30mm Wide, DT Swiss 240s, 1280g, Tubeless-Ready
Bola EXP 45R Carbon Disc Wheelset 700C – 45mm Deep, 28/30mm Wide, DT Swiss 240s, 1280g, Tubeless-Ready
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The Bola EXP 45R Carbon Disc Wheelset is engineered for road and gravel cyclists who prioritize low weight, stable handling, and reliable tubeless performance. Featuring a 40mm deep T800 UD carbon rim (21mm or 24mm internal, 28/30mm external), this 1280g set is optimized for 28–32c tubeless tires and compatibility with both 12x100/12x142mm thru-axle and QR setups. ISO 4210-7 and REACH certified. DT Swiss 240s hubs with 36T ratchet and Sapim CX Ray spokes ensure consistent power transfer and long-term reliability for endurance, climbing, and mixed-surface riding.
Experience High-Performance with Lightweight Carbon Disc Wheels
- Rim Depth: 45mm
- Internal Width: 21mm or 24mm
- External Width: 28mm or 30mm
- Material: T800 UD matte carbon fiber
- Hub: DT Swiss 240s, 36T ratchet, Center Lock, 12x100/12x142mm thru-axle/QR
- Weight: 1270g (excluding valves/tape)
- Spokes: Sapim CX Ray, straight-pull, 24/24, 2-cross
- Tire Compatibility: Tubeless & clincher, optimized for 28–32c tires
- Certifications: ISO 4210-7, REACH
Use Case & Comparison
- Climbing: Low system weight (1280g) and robust lateral stiffness help on sustained ascents (vs. heavier, deeper rim competitors).
- Mixed terrain: 21/24mm internal supports higher-volume tires for gravel stability.
- Aero optimization: 40mm rim balances crosswind stability with measurable aero efficiency over shallow options, per industry wind tunnel tests.
- Endurance: DT 240s hubs and Sapim CX Ray spokes validated in over-10,000km settings by independent cycling reviews for long-distance reliability.
Comparison Table
| Bola EXP 45R | Reserve 40/44 | GP 45W | |
|---|---|---|---|
| Rim Depth (mm) | 45 | 40/44 | 45 |
| External Width (mm) | 28/30 | 31 | 30 |
| Internal Width (mm) | 21/24 | 25 | 23 |
| Weight (g) | 1280 | 1425 | 1490 |
| Hub | DT 240s | R45D | Custom |
| Certifications | ISO 4210-7, REACH | — | — |
Frequently Asked Questions
Is there any difference between 40mm and 45mm rim profile for road or gravel riding?
40mm rims provide a good aerodynamic gain without excessive crosswind instability, while 45mm offers slightly more aero advantage but may add grams and affect handling in varied wind conditions.
How does a 1280g 700C carbon wheelset compare to a 40mm carbon disc wheelset for climbing?
At 1280g, the Bola EXP 45R is lighter than most 40–45mm deep competitors, offering improved acceleration and reduced fatigue on long climbs, though deeper rims may add minimal grams for more aero at higher speeds.
What are the benefits of using a 28mm or 30mm wide carbon rim for tubeless tires?
Wider 28mm and 30mm rims increase tire volume, lower rolling resistance, and offer better grip on gravel, improving comfort and puncture protection.
Are DT240s hub carbon wheelsets reliable for long-distance endurance cycling?
DT Swiss 240s hubs with 36T ratchet are recognized for high mileage endurance, requiring minimal maintenance and offering consistent engagement per verified reviews.
Is a 45mm deep carbon wheelset with Sapim CX Ray spokes worth the price for aero gains?
Sapim CX Ray spokes optimize aero drag at any depth; moving from 40mm to 45mm yields marginal aero benefit for a slight weight penalty, suitable for flat courses and high-speed conditions.
Advanced Carbon Construction for Superior Weight and Strength
The Bola EXP 45R wheelset stands out among lightweight carbon disc wheels thanks to its meticulously engineered carbon fiber rims. With a depth of 45mm and a width range of 28 to 30mm, these wheels strike a balanced combination of aerodynamic performance and enhanced tire stability. Carbon fiber not only reduces weight significantly—bringing the wheelset to an ultra-light 1280 grams—but also ensures exceptional stiffness and durability. This construction allows riders to gain quicker acceleration and maintain high speeds with minimal effort, making it ideal for competitive road cyclists seeking premium performance.
DT Swiss 240s Hub: Precision and Reliability Combined
At the heart of the Bola EXP 45R lightweight carbon disc wheels lies the renowned DT Swiss 240s hub. Known for its legendary reliability and smooth engagement, this hub system delivers enhanced power transfer and durability in all riding conditions. Lightweight yet robust, the DT Swiss 240s hubs contribute to the overall low weight of the wheelset without compromising strength. Their excellent bearing quality reduces rolling resistance, offering a seamless ride experience. Together with precision lacing and high-tension spokes, these hubs create a wheelset that excels in responsiveness and long-lasting performance.
Tubeless-Ready Design for Enhanced Riding Efficiency
The Bola EXP 45R wheels come tubeless-ready, offering cyclists the option to run tubeless tires for improved ride quality and reduced punctures. The generous rim width of 28 to 30mm optimizes tire shape and pressure, providing better traction and comfort on varied road surfaces. Tubeless setups allow lower tire pressures without the risk of pinch flats, translating to better grip and a smoother, more efficient pedal stroke. This modern design feature meets the demands of riders who want to push performance boundaries while enjoying real-world practicality and reliability.
