Carbon Fiber Sporting Goods
Bola EXT 35G Carbon Gravel Wheelset – 700C, 35mm Deep, 36mm Wide, Tubeless, Carbon Spokes, Ceramic Bearings, 1150g
Bola EXT 35G Carbon Gravel Wheelset – 700C, 35mm Deep, 36mm Wide, Tubeless, Carbon Spokes, Ceramic Bearings, 1150g
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The Bola EXT 35G Carbon Gravel Wheelset combines a 35mm aerodynamic rim depth and 36mm external width with T800 UD or Marble Matte carbon fiber construction for responsive off-road, long-distance, and competitive gravel cycling. At just 1150g per set without tape/valves, these disc brake wheels leverage tubeless readiness, straight-pull aero carbon spokes, and TPI ceramic bearings to deliver efficient power transfer, comfort, and tire compliance on mixed terrain. Certified to ISO 4210-7 and REACH standards, each set includes a 24-month warranty and crash replacement.
Technical Specifications
- Wheel Size: 700C
- Rim Depth: 35 mm
- Internal Rim Width: 30 mm
- External Rim Width: 36 mm
- Material: T800 UD or Marble Matte Carbon Fiber
- Spokes: 20F/20R, straight-pull aero carbon, 2-cross lacing
- Hubs: Aluminum BL100, TPI ceramic bearings, 54T ratchet, Center Lock disc, 12x100mm/12x142mm thru-axle and QR compatible
- Tubeless Ready: Yes
- Weight (Set): 1150g (without tape/valves)
- Certifications: ISO 4210-7, REACH-compliant
- Warranty: 24 months, includes crash replacement
Performance & Use Cases
- 35mm rim depth balances aerodynamic gains with crosswind stability for endurance rides and gravel racing.
- 36mm wide profile accommodates 32–50mm tires, enhancing grip, comfort, and flat protection for rough terrain.
- Full carbon construction and ceramic bearings reduce rotating mass, improving acceleration and ride quality on mixed terrain.
Specification Comparison Table
| Feature | Bola EXT 35G | Typical Alloy Gravel Set |
|---|---|---|
| Weight | 1150g | 1600g–1900g |
| Internal Width | 30mm | 22–25mm |
| Bearings | TPI Ceramic | Steel |
| Rim Depth | 35mm | 20–32mm |
| Spokes | Carbon Aero | Steel/Alloy J-bend |
Real-World Tradeoffs
- While full carbon spokes and ceramic bearings lower weight and increase responsiveness, they may require specific maintenance knowledge compared to traditional steel spokes and bearings.
- 35mm rim depth offers notable aero and speed benefits on open terrain but is less ideal for extreme mud clearance than shallower rims.
Frequently Asked Questions
Are 35mm deep carbon gravel wheels good for off-road and long rides?
Yes, the Bola EXT 35G’s 35mm deep rim provides stability and efficiency over long distances and mixed terrain, balancing aerodynamics with practical ground clearance.
What are the benefits of aero carbon spokes and TPI ceramic bearings on gravel wheelsets?
Aero carbon spokes increase lateral stiffness and minimize drag, while TPI ceramic bearings reduce rolling resistance and improve durability for consistent performance on gravel and rough roads.
How does a 1150g gravel wheelset compare to other lightweight 700C options?
At 1150g, Bola EXT 35G is lighter than most alloy or even several competitor carbon gravel wheelsets (which average 1300g–1600g), enabling quicker acceleration and reduced fatigue in demanding conditions.
Is a 36mm wide tubeless carbon wheelset comfortable for gravel cycling?
The 36mm external width allows for wider tire profiles (32–50mm), enhancing air volume, shock absorption, and grip, ideal for variable gravel terrain.
Are carbon gravel disc wheelsets worth the price for frequent off-road riding?
Yes, for frequent off-road riders, carbon wheelsets like the Bola EXT 35G offer significant gains in weight savings, ride feel, and durability, with industry certifications and crash replacement support.
