Bola PRM 50G Carbon Disc Wheelset 700C – 50mm Deep, 28-32mm Tubeless, Blade Carbon Spokes
Bola PRM 50G Carbon Disc Wheelset 700C – 50mm Deep, 28-32mm Tubeless, Blade Carbon Spokes
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Bola PRM 50G is a carbon disc wheelset engineered for versatile gravel, cyclocross, and road cycling. With a 50mm deep Toray T800 carbon rim, blade carbon spokes, and 28–32mm internal widths, it delivers aerodynamic efficiency, lightweight durability, and reliable performance for riders seeking confident upgrades beyond stock wheels.
Key Features & Specs
- Rim Depth: 50mm (aero profile for road and gravel speed)
- Internal Widths: 28mm, 30mm, or 32mm (external 34-38mm)
- Material: Toray T800 unidirectional matte carbon fiber rim
- Spokes: 20 front / 20 rear, 2-cross pattern, blade carbon, straight-pull
- Wheelset Weight (excl. tape/valves): 1250g (28/30mm), 1290g (32mm)
- Hub: CNC alloy BL350, Enduro bearings, 54T ratchet, Center Lock disc, 12x100/12x142mm thru-axle, QR compatible
- Compatibility: Tubeless-ready, supports 28–50mm tires and both road/gravel bikes
- Manufacturing Standards: ISO 4210-7 tested, REACH-compliant
- Warranty: 24-month manufacturer coverage, crash replacement included
How it Compares
| Feature | Bola PRM 50G | Performance Model (e.g., HUNT 50 Carbon Disc) |
|---|---|---|
| Rim Depth | 50mm | 50mm |
| Internal Width | 28/30/32mm | 22–25mm |
| Spoke Type | Blade carbon, straight-pull | Stainless steel, bladed |
| Wheelset Weight | 1250–1290g | ~1450g (claimed, broader range) |
| Hub Engagement | 54T ratchet (6.7°) | 36T ratchet (10°) |
| Compatibility | Road, gravel, CX, 28–50mm tires | Road, gravel, 25–55mm tires |
| Testing | ISO 4210-7, REACH, QC inspected | Not always specified |
Recommended Use Cases
- Upgrading endurance and training road bikes for improved aerodynamics and reduced rotational weight
- Building high-efficiency gravel bikes with tire compatibility from 28mm to 50mm
- Cyclocross racing and mixed terrain events requiring both stiffness and compliance
- OEM/ODM solutions for bike shops and performance-focused brands
- Adventure and bikepacking rides where strength, low weight, and 24-month global warranty are priorities
Frequently Asked Questions
Are wider 50mm deep carbon gravel wheelsets good for both road and cyclocross riding?
Yes. The Bola PRM 50G offers 50mm aerodynamic rim depth with 28–32mm internal width, making it stable and efficient for both road and cyclocross. The broader profile adds tire stability on mixed terrain while maintaining speed on paved routes. Supports 28–50mm tubeless tires to adapt to different cycling scenarios.
How does a lightweight carbon wheelset with blade spokes compare to alloy wheels for climbing performance?
At 1250–1290g, the carbon rim and blade spokes significantly reduce rotational mass versus most alloy wheels, enhancing climbing acceleration and responsiveness. Riders report noticeably improved stiffness and direct power transfer, especially on extended climbs or sprints, compared to standard aluminum wheelsets.
What’s the best tubeless ready carbon wheelset for gravel bikes with 28mm to 45mm tires?
The PRM 50G’s wide internal rim options (28–32mm) are optimized for modern 28–50mm tubeless tires, providing a stable platform and lower rolling resistance. If you ride mixed surfaces or require pressure flexibility, this design supports safe bead lock and easy tubeless setup.
Will a 50mm carbon disc wheelset improve speed and stability on long road rides?
Yes. The 50mm rim depth improves aerodynamic efficiency and crosswind stability at higher speeds, while the low overall mass reduces fatigue over long distances. Real-world riders note a tangible benefit in cruising speed and handling versus shallower or heavier options.
Is 30mm plus wide carbon bike wheel better for gravel and CX cycling?
For gravel and cyclocross, a 30–32mm internal width allows tires to run wider and lower pressure, increasing comfort and grip on rough terrain. PRM 50G provides these options for maximum adaptability without sacrificing stiffness.
