Great catch—the 2025 Surron Ultra Bee (HP) is a much more formidable opponent with that jump to 21kW.1 However, the Bonnell 805 still holds a massive power advantage (42kW is exactly double the Ultra Bee’s peak).
Here is the updated, highly accurate comparison for your product page:
How the Bonnell 805 Compares
The 2026 market is more competitive than ever. Here is how the Bonnell 805 stacks up against the latest 2025/2026 industry leaders.
| Feature | Bonnell 805 | 2025 Ultra Bee HP | Stark Varg |
| Peak Power | 56 hp (42 kW) | 28 hp (21 kW) | 80 hp (60 kW) |
| Top Speed | 80+ mph | 59 mph | 75+ mph |
| Wheel Size | 21″ F / 18″ R | 19″ F / 18″ R | 21″ F / 18″ R |
| Suspension | 245 mm (Sirris) | 240 mm (KKE/Stock) | 310 mm (KYB) |
| Weight | 211 lb (96 kg) | 195 lb (88 kg) | 260 lb (118 kg) |
The “Double-Power” Advantage
Surron stepped up their game with the 2025 Ultra Bee HP, increasing power to 21kW.2 But the Bonnell 805 doesn’t just beat it—it doubles it. With 42kW of peak output, the 805 offers a level of vertical climbing capability and “whisper-quiet” roost that the Ultra Bee simply cannot match. While the Ultra Bee is a great play bike, the 805 is a dedicated racing weapon.
Full-Size Geometry, Mid-Size Weight
The Ultra Bee HP finally moved to an 18″ rear wheel, but it still runs a 19″ front.3 The Bonnell 805 goes full-scale with a 21″ front and 18″ rear setup.4 This gives you better rollover on technical obstacles and access to every professional-grade motocross tire on the market. You get the stability of a full-size bike with a weight profile that is 50 lbs lighter than a Stark Varg.
Smart Technology: The Pulse System
Beyond raw numbers, the 805 features the Pulse Control System. While competitors use basic traction control, the 805’s 6-axis IMU manages wheelie levels, lean-angle torque delivery, and a programmable electronic clutch.5 It’s the first mid-sized bike that actually “thinks” as fast as you ride.
The Bottom Line: If you want the nimbleness of an e-moto but the raw, bone-shaking power of a 450cc combustion bike, the Bonnell 805 is the only machine that delivers.