ULT ULTRA BEE HP

Inheriting the lightweight DNA, igniting the pure desire for ultimate control, the 2025 Ultra Bee takes a comprehensive leap forward. Meticulously designed inside and out, it delivers upgraded power and features, elevating off-road performance and handling to an entirely new level.

Power performance undergoes a substantial upgrade
Equipped with the all-new second-generation high-performance mid-mounted motor, the peak power has surged to 21 kW, an increase of over 68% compared to the previous generation! The maximum torque of the drive wheel has increased by 16%, reaching an astonishing 377ft-lbs. A new Turbo riding mode has been added, allowing acceleration from 0 to 31mph in just 2 seconds! Bursting with power, ready at your fingertips!

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 filling 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.

ΜΤΡΑ/ΜΤPV 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.

Surron Traction Control System
The ASR off-road traction control system can be used in various off-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
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.

The battery cells used in the battery packs of the Surron products are provided by high-quality suppliers around the world, and all of them have passed the US UL certification.
Automotive-grade BMS (battery management system) accurately detects and ensures that the battery pack operates in strict accordance with the safety range of the power map, taking into account the safety and performance of use.

Motor

Rated Voltage 74v (DC)

Rated Power / Peak Power 21KW

Direct Drive + Chain

Torque 511nm

Mounting Position Centre Frame

Cooling Method Air Cooled

Controller

TypeFOC

Peak Efficiency92%

Battery

Max Range *85 Miles

Battery 74v 60Ah

Speedometer TFT Digital

Charging Time **2.5Hours

* Range is dependant on speed/weight/braking and other factors

** Charging time is from 20-80%

Chassis

Max Load 100kg

Net Weight 88kg

upside down, 200mm travel, fully adjustable

Wheel Type Spoke Wheels

Dimensions (LxWxH)2010mm x 850mm x 1180mm

6082 aluminum extruded, forged, CNC machined and steel frame.

Rear Shock Travel/Wheel Travel: 3.3in / 9.4in

Front Tyre Size 80/100-19

Rear Tyre Size 10/90-18

Chassis Surface Anodizing Paint Treated

Headlight LED

Tyres CST MX

Minimum Ground Clearance 318mm