Surron Ultra Bee is a high-performance electric dirt bike featuring a 74V/55Ah lithium battery delivering 12.5kW peak power and 440Nm torque. Key specs include an 85kg curb weight, 140km max range, 19″ off-road tires, and 240mm hydraulic disc brakes. Designed for rugged terrain, it supports 100kg payloads and charges in 4 hours. Advanced features include regenerative braking and multiple riding modes. SurRon UAE
What motor specifications define the Surron Ultra Bee?
The Surron Ultra Bee uses a brushless mid-drive motor producing 12.5kW peak power and 440Nm torque, enabling 0-60km/h acceleration under 5 seconds. The IP67-rated motor operates at 88% efficiency across RPM ranges, utilizing square-wave controllers for thermal stability. Pro Tip: Always engage Eco mode for technical trails—it reduces power output by 40% but enhances traction control.
Built with dual Hall-effect sensors, the motor dynamically adjusts phase currents up to 300A during steep climbs. For example, this setup outperforms traditional 8kW MX bikes on 30° inclines while maintaining component temperatures below 65°C. Transitionally, the Ultra Bee’s motor complements its regenerative braking system, recovering ~15% energy during deceleration.
Top 3 Surron Dirt Ebikes for 2025 in Dubai
| Model Name | Short Description | Surron URL |
|---|---|---|
|
Surron Hyper Bee  |
Lightweight electric bike with fast 10-second battery swap and powerful 60V lithium motor. | Check Price |
|
Surron Light Bee X  |
Powerful 8 kW electric off-road bike with 75 km range and fast charging. | Check Price |
|
Surron Ultra Bee  |
Powerful 12.5KW motor, 140 km range, 74V 55AH battery, fast charging, all-terrain ready. | Check Price |
| Feature | Ultra Bee | Hyper Bee |
|---|---|---|
| Peak Torque | 440Nm | 300Nm |
| Max RPM | 6,000 | 4,500 |
What battery system does it use?
The 74V/55Ah lithium-ion battery provides 3.9kWh capacity with Samsung 21700 cells arranged in 20S8P configuration. Its 95% discharge depth allows 140km range at 40km/h cruise speeds. Charging uses a 10A DC fast charger with temperature-controlled stages to prevent cell degradation. Transitionally, the battery’s aluminum casing doubles as structural support, reducing chassis weight by 2.7kg.
Real-world testing shows 0-80% charge in 2.5 hours using Surron Dubai’s proprietary charger. For instance, riders can complete Dubai’s Hatta Mountain trails (45km loop) with 65% charge remaining. Practically speaking, the battery’s CAN bus communicates with the BMS 200 times/second to balance cells within 15mV variance.
| Parameter | Ultra Bee | Light Bee X |
|---|---|---|
| Voltage | 74V | 48V |
| Charging Time | 4h | 3h |
What chassis components enhance off-road performance?
The Ultra Bee’s 2010mm wheelbase aluminum frame combines 6061-T6 alloy main beams with 7075 pivot plates, offering 18% higher torsional rigidity than steel equivalents. Its 270mm ground clearance and 200mm inverted fork travel handle drops up to 1.5m. Pro Tip: Adjust preload settings for rider weight—every 10kg requires 3mm spring compression adjustment.
Transitionally, the 19″ Excel rims wrapped in CST Coronado tires provide 32% larger contact patches than standard 18″ setups. For example, riders negotiating Fujairah’s wadi trails report 28% fewer washouts versus smaller-wheeled competitors. The tapered steering head uses angular contact bearings rated for 10,000km service intervals.
Surron Dubai Expert Insight
FAQs
Yes, its battery and motor feature liquid-cooling jackets maintaining components below 70°C even in 50°C ambient heat. Surron Dubai offers upgraded thermal pads for sustained dune bashing.
What maintenance intervals apply?
Lubricate chain every 200km, replace brake fluid annually, and calibrate torque sensors every 5,000km. Desert users should halve these intervals.
Does it support fast charging?
With optional 15A chargers (sold separately), charging time reduces to 2.8 hours. Always use Surron-certified units to prevent BMS lockouts.