Description

2025 Sur-Ron Ultra Bee Electric Bike

The 2025 Sur-Ron Ultra Bee is a high-performance electric dirt bike engineered for riders seeking full-size off-road capability, powerful acceleration and precise control. Positioned between the lightweight Sur-Ron Light Bee X and the larger Storm Bee, the Ultra Bee delivers serious trail and track performance in a balanced, manageable platform.

Powered by a 12.5 kW electric motor and a high-capacity 74V lithium-ion battery, the Ultra Bee provides immediate torque, rapid acceleration and smooth power delivery. Its lightweight forged aluminum chassis, adjustable suspension and advanced rider-assistance systems help provide confident handling across steep climbs, technical trails and demanding off-road terrain.

Motor and Performance

The 2025 Sur-Ron Ultra Bee produces up to 12.5 kW of peak motor power and approximately 324.5 ft-lb of maximum rear-wheel torque. Its responsive electric drivetrain delivers strong acceleration without a clutch or manual gearbox.

The manufacturer lists acceleration from 0–31 mph in approximately 2.3 seconds and a maximum speed of up to 56 mph, depending on configuration, riding conditions and local restrictions.

Performance Highlights

• Peak motor power: 12.5 kW
• Maximum rear-wheel torque: Approximately 324.5 ft-lb
• Top speed: Up to 56 mph
• 0–31 mph acceleration: Approximately 2.3 seconds
• Motor type: Permanent-magnet synchronous electric motor
• Controller: Field-oriented sine-wave controller
• Drive system: Chain drive
• Power delivery: Immediate and responsive electric torque

Battery, Range and Charging

The Sur-Ron Ultra Bee is equipped with a removable 74V 55Ah lithium-ion battery designed to support sustained trail riding and demanding off-road performance.

Maximum advertised range is approximately 87 miles when travelling at a constant speed of 31 mph under controlled testing conditions. Real-world range will vary considerably according to terrain, speed, rider weight, temperature, elevation, tyre pressure and riding mode.

Battery Specifications

• Battery type: Removable lithium-ion
• Voltage: 74V
• Capacity: 55Ah
• Stored energy: Approximately 4.07 kWh
• Maximum stated range: Up to approximately 87 miles at 31 mph
• Charging time: Approximately four hours, depending on charger and conditions

Lightweight Full-Size Chassis

The Ultra Bee uses a forged aluminum-alloy frame designed to provide strength, stability and responsive handling. At approximately 187 lb, it is considerably lighter than many conventional full-size motorcycles while offering more substantial dimensions and performance than lightweight electric trail bikes.

Its centralized battery and motor placement create balanced weight distribution, helping riders maintain control during cornering, climbing, braking and technical maneuvers.

Fully Adjustable Suspension

The 2025 Sur-Ron Ultra Bee features long-travel, adjustable suspension designed for trails, jumps and uneven off-road surfaces.

The front inverted fork and rear linkage shock can be adjusted to suit different rider weights, terrain conditions and riding styles.

Chassis and Suspension Features

• Forged aluminum-alloy frame
• Fully adjustable inverted front fork
• Adjustable rear linkage shock
• Long-travel off-road suspension
• Wheelbase: Approximately 54.3 inches
• Seat height: Approximately 35.8 inches
• Ground clearance: Approximately 12.5 inches
• Off-road wheel and tire configuration

Hydraulic Braking System

High-performance hydraulic disc brakes provide controlled stopping power on steep descents, loose surfaces and technical trails.

The Ultra Bee also features adjustable regenerative braking, allowing riders to control the level of deceleration produced when releasing the throttle.

Braking Features

• Hydraulic front disc brake
• Hydraulic rear disc brake
• Adjustable regenerative braking
• Large off-road brake rotors
• Responsive electronic throttle control

Advanced Ride Modes and Rider Assistance

The Sur-Ron Ultra Bee includes multiple riding modes and electronic assistance systems that help riders tailor the bike’s performance to different terrain and experience levels.

Rider-Control Features

• Eco riding mode
• Daily riding mode
• Sport riding mode
• Reverse assistance
• Adjustable regenerative braking
• Sur-Ron traction-control system
• Digital multifunction display
• Battery and riding information
• LED lighting system

Dimensions and Capacity

• Curb weight: Approximately 187 lb
• Seat height: Approximately 35.8 inches
• Wheelbase: Approximately 54.3 inches
• Ground clearance: Approximately 12.5 inches
• Maximum carrying capacity: Approximately 220 lb

Quiet, Low-Maintenance Electric Performance

The Ultra Bee delivers strong off-road performance without petrol, engine oil, exhaust fumes or conventional gear changes. Its electric drivetrain requires less routine servicing than a combustion-engine motorcycle and operates with substantially less noise.

Maintenance is still required for components such as the chain, gearbox oil, brakes, suspension, tires and bearings.

Why Choose the 2025 Sur-Ron Ultra Bee?

The 2025 Sur-Ron Ultra Bee electric dirt bike combines full-size off-road performance with lightweight electric-bike handling and advanced rider-control technology.

It is an excellent choice for riders seeking:

• Up to 12.5 kW of peak electric power
• Strong rear-wheel torque
• A removable 74V 55Ah battery
• Rapid off-road acceleration
• Fully adjustable suspension
• Hydraulic disc brakes
• Multiple riding modes
• Traction control
• Quiet and responsive electric performance
• Trail, track and recreational riding capability

With its powerful drivetrain, lightweight forged chassis and advanced electronic controls, the 2025 Sur-Ron Ultra Bee offers an exciting balance of speed, agility and serious off-road performance.