Building on its lightweight heritage and driven by the pursuit of precise control, the 2025 Ultra Bee advances significantly. Thoughtfully engineered in every aspect, it offers enhanced power and advanced features that raise off-road capability and handling to exceptional heights.
Power Performance
Featuring the all-new second-generation high-performance mid-mounted motor, peak power has risen to 21 kW—over 68% more than the previous model. Maximum torque at the drive wheel has increased by 16%, reaching an impressive 377 ft-lbs. The addition of a Turbo riding mode enables acceleration from 0 to 31 mph in just 2 seconds. Delivering explosive power instantly at your command.
POWER SYSTEM
Hairpin motor x MTPA/MTPV
Hairpin Motor
The second-generation motor of the ULTRA BEE serves as a powerful power core, utilizing a new Hairpin winding technology that significantly increases the motor's filing factor, resulting in higher efficiency and improved heat dissipation.
Additionally, the embedded permanent magnets in the rotor maximize the magnetic reluctance torque at low speeds, enhancing torque density, with better weak magnetic performance, the motor achieves higher speeds, with a maximum rotational speed of 7.000 rpm, and maintains peak power output from 2,000 rpm to 7,000 rpm.
MTPA/MTPV Controller
Independently developed and tuned by SURRON, this controller employs a brand-new MTPA/MTPV control strategy further optimizing the internal structure and circuit layout to fully leverage the performance advantages of the HairPin winding embedded permanent magnet motor.
Traction Control System
The ASR off-road traction control system can be used in various of-road scenarios, featuring three selectable levels for quick switching, minimizing rear wheel slip interference to the greatest extent, combined with multi-level adjustable energy recovery and a three-level adjustable throttle curve, you can determine how you want to rider.
Eco/Daily/Sports/Crawl/Reverse + "Turbo" 6 power modes can be switched at any time, allowing your Jifeng to be suitable for all weather conditions.
BATTERY SAFETY
High-performance Battery Pack
The all-new 74V60Ah lithium battery pack is equipped with a safe and efficient
battery management module, delivering abundant and stable power.
Featuring distributed temperature sensors and a microcontroller with CAN
communication protocol, it ensures high power load capacity and extended
lifespan, Weighing only 47lbs, the battery pack is easily removable,allowing for convenient charging anytime, anywhere.
Balance is Perfection
The ULTRA BEE adheres to the Surron's design philosophy of "Balance ls
Perfection", The frame is made of forged aluminum alloy, tailored to the ULTRA BEE's dedicated power system. The front-to-rear weight ratio is 50:50.The whole bike weighs merely 195lbs,making it easily liftable,even with bare hands.
The overall Human-to-Machine interface and flexible riding characteristics
configuration allow riders to find their personal favorite between daily commuting comfort and off-road capability, achieving a seamless harmony from inside out.
SUSPENSION SYSTEM
All-new custom suspension system
Comprehensively upgraded from the inside out.
Custom gold outer tube with enhanced internal sliding sleeves, providing smooth and silky compression rebound. The initial phase is soft, with greater load capacity in the mid to latter sections. Whether used in forest trails or on racing tracks, it offers stable support and precise handling.
Usable travel of up to 9.4in
Compression and rebound can be adjusted to adapt to more riding scenarios
External pipe upgrade 7 series aluminum alloy material, the overall strength and rigidity greatly improved
INTERSECT TR Rear Suspension System
A multi-link rear suspension system, combined with fully adjustable airbag rear shocks and high-strength alloy springs, integrates seamlessly with the overall shape and structure of the vehicle.
The shock absorption performance is tailored to the characteristics of the ULTRA BEE, ensuring that the tires maintain optimal grip at all times.
NO LIMIT TO THE FORM
Front 80/100-19 and rear 100/90-18 professional off-road wheelset
The widened rear wheel significantly enhances grip and stability, allowing the vehicle to maintain excellent traction across a variety of complex terrains. The high-strength wheelset structure and dense tread patterns provide ample confidence for getting out of tricky situations.
Enhanced braking system
The high-strength motorcycle braking system features a 90% increase in caliper rigidity. The braking feel is light and linear, allowing for precise control with just one finger, ensuring safety for your off-road adventures.
Newly upgraded primary Drive system
The new carbon fiber core belt has excellent load capacity per unit width, excellent wear resistance and low thermal expansion coefficient, and the ultimate strength is increased by 60%.
The surface of the pulley is coated with tungsten carbide, which is second only to diamond in wear resistance and hardness, greatly improves the strength and life of the pulley.
Does off-roading require traction control to be turned
The ULTRA BEE features a new generation of off-road ASR traction control system (SRTC), that can be used in various off-road scenarios. With three adjustable levels for quick one-button adjustments, combined with a three-level adjustable throttle power curve, it allows for better control of vehicle stability without compromising handling, making you an off-road expert in no time.
Carry the charger with you
A dedicated onboard storage space for the charger is designed under the seat, with reserved ventilation channels that support the charger's built-in operation. in the mountains or the wild, there's no need to carry the charger separately anymore. Charge it whenever you need, ensuring worry-free endurance!
PARAMETER
Specifications
| Dimension | 79.1x33.5x46.5in |
| Wheel Base | 54.3in |
| Seat Height | 35.8in |
| Curb Weight | 195lbs |
| Carrying Capacity | 220.5lbs |
| Ground Clearance | 12.4in |
| Front Fork Travel | 9.4in |
| Rear Shock/Wheel Travel | 3.3/9.4in |
| Max. Torque (on wheel) | 377ft-lbs |
Power System
| Power System | PMSM+MTPA/MTPV Controller |
| Maximum Power(Motor) | 21kw(Turbo)18kw(Sports) |
| Riding Mode | Eco/Daily/Sports/Crawl/Reverse + “Turbo” mode |
| Assistance Functions | SRTC+BERS |
| Battery Type | 74V/60AH Lithium-ion Battery pack |
| Throttle Curve | Three-stage Adjustable |
| Primary Belt System | Carbon fiber belt Forged pulley Tungsten carbide coating |
| Charging Parameter | Three different charging power Level-U1(425W)-U2(765W)-U3(1100W) |
Performance
| Top Speed | 59mph |
| WMTC road | 71.5miles@31mph |
| Charge Time（20%-80%） | 2.5h |
Frame&Tire
| Tires Type | Front-80/100-19 Off-Road Rear-100/90-18 Off-Road |
Frame Material
| Frame Material | Forged aluminium alloy |
Assistant Functions
| GPS Terminal | APP connection (if available) |
| Crawl mode | Three-stage Adjustable |
| Tilt Protection | Gyroscope sensor (Can be turned off in feature setting mode) |
| Color | Carbon Black（black&yellow）、Desert Brown |
*The range and top speed parameters will be affected by vehicle load, temperature, speed, terrain, and other factors. The above performance parameters were tested in a dry and flat road environment with a rider weighing 70kg, an ambient temperature of 27 ° C, and a constant speed of 40km/h.
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