Carbon Fiber Sporting Goods
Bola EXP 40R Carbon Disc Wheelset 700C – 40mm Deep, 28/30mm Wide, DT240s Hub, 1270g, Tubeless-Ready
Bola EXP 40R Carbon Disc Wheelset 700C – 40mm Deep, 28/30mm Wide, DT240s Hub, 1270g, Tubeless-Ready
Made to Order — Handling time: within 15 days
🚚 Free shipping on orders over $300 USD
🧾 VAT included for EU & USA
Impossible de charger la disponibilité du service de retrait
The Bola EXP 40R Carbon Disc Wheelset features a 40mm deep, 28/30mm wide T800 UD matte carbon rim and DT Swiss 240s 36T ratchet hubs, weighing 1270g. Optimized for 28–32c tubeless or clincher tires, this wheelset is engineered for both competitive road and mixed-terrain gravel use, combining reliable aerodynamics with responsive climbing performance.
A decade of manufacturing experience ensures strict ISO 4210-7 and REACH compliance, dependable quality controls, and durable construction for professional teams, brands, and demanding individual cyclists.
Technical Specifications
- Rim Depth: 40mm
- 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 tape/valves)
- Spokes: Sapim CX Ray, straight-pull, 24/24, 2-cross lacing
- Tire Compatibility: Tubeless & clincher, optimized for 28–32c
- Certifications: ISO 4210-7, REACH
Situational Fit & Real-World Use
- Road & Gravel: 40mm depth and wide profile offer optimized balance of aerodynamic gain and crosswind stability, suitable for competitive road racing, performance gravel, and endurance cycling.
- Climbing: At 1270g, this wheelset supports strong acceleration and climbing performance—comparable to elite 1170–1290g competitor wheelsets.
- DT Swiss 240s Hubs: Known for power transfer efficiency and low rolling resistance, delivering reliable performance under racing loads and variable weather.
- Rim Width Options: 28mm/30mm external width allows secure tire seating for 28–32c tubeless tires, supporting lower pressures and improved comfort on rough roads.
Carbon Wheel Comparison Table
| Model | Weight | Depth | Internal Width | Hub Type | Tire Compatibility |
|---|---|---|---|---|---|
| Bola EXP 40R | 1270g | 40mm | 21/24mm | DT 240s 36T | 28–32c Tubeless/Clincher |
| AERO 40 II Disc | 1177g | 40mm | 23mm | D91 45T | Tubeless Ready |
| HUNT 40 Disc | ~1420g | 40mm | Not specified | Ratchet system | Tubeless/Clincher |
Frequently Asked Questions
Are 40mm deep carbon disc wheels good for both road and gravel riding?
Yes, the 40mm profile balances aerodynamic speed with stability on mixed surfaces, making it suitable for both competitive road cycling and advanced gravel racing with 28–32c tires.
How does a 1270g 700C carbon disc wheelset compare for climbing?
At 1270g, the Bola EXP 40R is among the lightest, rivaling leading 1170–1300g wheelsets for fast climbing, while maintaining stiffness for efficient power transfer.
What are the main benefits of DT Swiss 240s hubs?
DT Swiss 240s hubs deliver durable, low-friction rolling and rapid 36T ratchet engagement, providing smooth, reliable power transfer on both climbs and flat terrain.
Is a 28mm or 30mm wide wheelset better for 28–32c tubeless tires?
Both widths are optimal for 28–32c tubeless tires; 30mm offers extra stability and comfort for rougher gravel, while 28mm balances aerodynamics for pure road use.
What’s the aerodynamic difference between 40mm and 50mm deep carbon wheelsets?
50mm deep rims increase aerodynamic efficiency on flat or high-speed sections but may be more affected by crosswinds; 40mm offers more versatile handling with minimal aero trade-off.
