2025 Surron Ultra Bee HP – Desert Brown

The 2025 Surron Ultra Bee HP in Desert Brown introduces a major evolution in electric off-road motorcycle performance. This upgraded model features a 21kW peak motor, improved MTPA/MTPV controller, and enhanced thermal efficiency through a redesigned hairpin motor structure. With increased torque delivery and refined handling characteristics, the Ultra Bee HP is engineered for demanding off-road environments.

Equipped with a 74V 60Ah lithium battery, the Ultra Bee HP provides consistent power output and extended range. Turbo Mode delivers full acceleration on demand, while Sport Mode maintains 18kW of continuous performance for sustained riding. The 2025 model also includes a new crawling function for precise low-speed control on technical terrain.

The suspension system has been reinforced with a 50% stronger front fork featuring improved wall thickness and upgraded hydraulic buffering. The rear suspension delivers stable damping through a redesigned shock system. The primary drive has been enhanced with a carbon-fiber belt and forged pulleys coated with tungsten carbide for triple the wear resistance of previous generations.

With a practical riding range of up to 70 miles depending on speed and terrain, and a charging time from 20% to 80% in approximately 2.5 hours, this model offers both endurance and convenience. The Desert Brown edition features updated aesthetics including gold-accented components, revised graphics, and a new 18-inch rear wheel configuration.

Specifications:
Motor: PMSM with MTPA/MTPV Controller
Peak Power: 21 kW (Turbo)
Continuous Power: 18 kW (Sport)
Torque at Wheel: 376.9 ft-lbs
Battery: 74V / 60Ah lithium-ion
Top Speed: 59 mph
Range: Up to 70 miles depending on terrain
Seat Height: 35.8 in
Ground Clearance: 12.4 in
Wheelbase: 54.3 in
Frame: Forged aluminum alloy
Front Tire: 80/100-19
Rear Tire: 100/90-18
Front Suspension Travel: 9.4 in
Rear Suspension Travel: 3.3 in (9.4 in wheel travel)
Throttle Settings: Three adjustable profiles
Rider Weight Capacity: 220 lbs
Dry Weight: 195 lbs

Smart Features:
SRTC traction control
BERS regenerative assist
Adjustable ASR anti-slip system
Full system diagnostics
Multi-mode power customization

Settings and ASR Setup:
To enter settings mode, power on with the kickstand down and hold the Ready and ASR buttons for three seconds until the display shows a configuration code. Tap ASR to navigate and tap Ready to adjust. ASR can be activated or deactivated by pressing ASR three times, with strength levels displayed as one to three bars. To adjust ASR strength while riding, hold ASR and double-press the reverse switch.