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Your Professional High-speed Electric Motorcycle Series manufacturer!

 

 

Since its establishment, Taizhou Zhongdong Technology Co., Ltd. has been committed to the research and development and production of tricycle export motors, forklift logistics motors, high-speed mid-mounted side motors, and garden motors.Our is one of China top professional center-mounted direct drive motor manufactures.

 

Why Choose Us

Our Factory

Our company has 20 technical research and development personnel, 100 employees, four assembly lines, an annual output of 800000 units, and a total area of 10000 square meters.

Our Certificates

We have more than 30 independent intellectual property rights, including domestic invention patents. Our products have passed IS9001 certification, CE certification, RoHS certification, and 3C certification, and are exported to domestic and foreign markets, receiving unanimous praise from the industry.

Production Management

With independent research and development as our mission, excellent quality as our guarantee, we strictly control the details and adhere to high standards of production management.

 

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Types of High-speed Electric Motorcycle Series

 

The high-speed electric motorcycle series produced by our company mainly include the following types:
ZD087F Mid Mounted Motor
A Mid Mounted Motor is situated near the Motorcycle8's crankset, where it directly powers the pedals.This motor type is generally favored by severe cyclists and those who ride on rugged terrains. Unlike hub motors, mid-mounted motors leverage the Motorcycle's existing gear system, allowing for more efficient power distribution.

Rated voltage

48V-72V

Rated power

3000W

Peak power

6000W

Rated speed

3500rpm

Peak torque

70N.m

Maximum efficiency

≤92%

Protection level

IP65

Insulation level

B

Position Sensor Type

GMR

Temperature sensor model

KTY84-150

Gear ratio

/

Transmission form

/

Cooling Method

Natural cooling

Motor weight

10.6kg

Application scenarios

Electric two-wheeler

 

ZDL-01 Hub Motor
A hub motor, often located in either the front or rear wheel, is a self-contained unit that powers the bike directly through the wheel. Because of its simplicity, it's one of the most common types of motors used in e-Motorcycle.

 

Wheel size

10inch

Applicable Voltage

48V-96V

Rated power

1000W-2500W

Top speed

35KM-70KM

Blocking torque

70N.M-140N.M

No-load speed

600rpm-880rpm

Wheel rim

Iron wheel

Detent

Drum brake/disc brake

IP

54

Insulation class

B

Motor shaft opening

200mm

ZD044 Small ATV Center Gear Motor
In the vast landscape of electromechanical devices, small gear motors emerge as quintessential elements for applications where space is at a premium yet efficiency cannot be compromised. These marvels of engineering seamlessly combine an electric motor with a gearbox, resulting in a device that adeptly reduces speed and amplifies torque.

 

Rated voltage

48V-72V

Rated power

350W-500W

Peak power

1000W

Rated speed

1600rpm

Peak torque

30N. m

Maximum efficiency

≤85%

Protection level

IP54

Insulation level

B

Position Sensor Type

HALL

Temperature sensor model

KTY84-150

Gear ratio

3.4:1

Transmission form

Gear drivers

Motor weight

4.8kg

Cooling Method

Natural cooling

Application scenarios

ATV

 

Advantages of High-speed Electric Motorcycle Series

 

Advantages of ZD087F Mid Mounted Motor

 
01
 

High efficiency and high torque

The biggest advantage of a mid mounted motor over a hub motor is its gear ratio. Riders can power the rear wheel through the same chain and gear set as the pedals, so they can choose low gear for power on steep hills or accelerate from a stop with high torque.

 
02
 

Reasonable center of gravity distribution, suitable for sports vehicles

The center of gravity of the mid mounted motor is in the middle of the vehicle, and the load-bearing is relatively balanced. Therefore, it can maintain the balance of the electric bicycle to the maximum extent. It will not affect the shock absorption when traveling quickly. The motor will also bear less road impact and has a higher degree of integration. It reduces the exposure of wire pipes and is superior to vehicles equipped with in-wheel motors in terms of off-road handling, stability, and passability.

 
03
 

Small resistance

As the power of the wheel hub motor continues to be consumed, the electromagnetic resistance generated by the motor will continue to increase, making riding without power more difficult. There is no reluctance in the mid mounted motor, and the internally designed clutch ratchet can make riding without power the motor is completely detached from the bottom bracket ratchet, so even if the power is exhausted, you can ride as easily as a mechanical bicycle.

ZD087F Mid Mounted Motor

 

Advantages of ZDL-01 Hub Motor

 

 
 

Simplified Design:

Hub motors boast a simplified design with fewer moving parts, resulting in quieter operation and ease of maintenance.

 
 
 

Ease of Installation:

The straightforward integration of hub motors makes them a preferred choice for manufacturers, streamlining the manufacturing process.

 
 
 

Silent Operation:

Hub motors operate almost silently, contributing to a tranquil riding experience, especially in urban environments.

 

 

 

Advantages of ZD044 Small ATV Center Gear Motor

 
 

Compact Power:
They deliver high torque while occupying minimal space, ideal for tight spaces.

 
 

Efficiency:
These motors use energy effectively, reducing operational costs.

 
 

Versatility:
With various types available, they suit numerous applications, from precision devices to industrial machines.

 
 

Low Noise:
Their operation is quieter, important for environments where noise is a concern.

 
 

Durability:
Despite their size, they are designed for longevity and reliability.

 
 

Easy Integration:
Their compact size facilitates easy incorporation into systems without extensive modifications.

 

 

 

Comparison between hub motor and mid-mounted motor

 

 

 
Power distribution

Regarding power distribution, the contrast between hub and mid-mounted motors becomes evident.
Hub motors distribute power directly to the wheel, bypassing the bike's chain and gears entirely. This makes them highly efficient on flat surfaces but less effective when the terrain becomes hilly.On the other hand, mid-mounted motors use the bike's gear system, which helps distribute power more evenly.

 
Efficiency and performance differences

The performance of hub motors vs. Mid-mounted motors varies depending on the riding environment.
Hub motors perform exceptionally well on flat terrain, where the need for gear shifting is minimal. They offer a consistent, direct push to the wheel, allowing for a smoother ride in urban settings.Mid-mounted motors, in contrast, excel in hilly or rugged environments. They can optimize performance across different terrains since they work with the bike's gear system.

 
Cadence and power efficiency

Hub motors operate efficiently at medium to high speeds, making them ideal for road and city bikes.However, their power assist can feel weaker at lower speeds, such as when starting from a standstill. Conversely, mid-mounted motors excel at low-speed performance because they can utilize the bike's gears, offering more consistent power even at lower cadences. This makes mid-mounted motors particularly beneficial for steep climbs and off-road cycling.

 
Weight distribution and impact on ride

Hub motors add weight to the wheel, making the bike feel slightly heavier, especially when climbing or accelerating.Mid-mounted motors, positioned centrally, provide a more balanced weight distribution. This enhances handling and improves the overall riding experience, especially when navigating tight corners or riding at high speeds.

 

 

 

Working principle of a hub motor

 

The working principle of a hub motor is an electronic phase changer (switching circuit). According to the position sensor signal, it controls the sequence and time of energizing the stator winding to generate the rotating magnetic field and drive the rotor to rotate.

ZDL-01 Hub Motor
ZD087F Mid Mounted Motor

Working principle of a mid mounted motor

 

The mid-drive motor is positioned on the bike's bottom bracket, which serves as the connection between the pedals and the frame. By being situated in this central location, the mid-drive motor is capable of efficiently transferring power directly to the chain, resulting in an effortless and efficient riding experience. As the rider engages in pedaling, the motor seamlessly provides assistance, thereby creating the sensation of possessing extraordinary physical prowess.

Working principle of a Gear Motor

 

At its core, a gear motor consists of two main components: an electric motor and a set of gears. The electric motor generates rotational motion or torque, which is then transmitted to the gears. The gears serve as mechanical amplifiers by increasing or decreasing the speed and torque output.The key principle behind gear motors is the concept of gear reduction ratio. This refers to the ratio between the number of teeth on the driving gear (connected to the motor) and those on the driven gear (connected to the load). By altering these ratios through different combinations of gears, it is possible to achieve varying levels of speed reduction or increase.

ZD085B2 Electric Motocross Motorcycle Center Gear Motor

 

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Packaging and Shipping

Generally, we pack our goods with small box ,then some small boxes in one carton which suitable for shipping containers.
DHL, UPS, FedEx, TNT, EMS, China Post,Sea are available.The other shipping ways are also available.

 

 

Our Certificates

 
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FAQ

 

 

Q: Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.

Q: How about the lead time?

A: If no stocks, it takes 7 to 15 working days to manufacture after receiving the advance payment. If in stock, 2-4 working days are
possible. But it depends on the exact products and quantity.

Q: Which payment can be acceptable ?

A: We could accept the payment by T/T, Paypal, Western Union,L/C, etc.

Q: Where is the gear motor used?

A: Gear motors are used in a wide range of industrial and commercial sectors, where efficient power transmission, high torque and speed control are required: automation, robotics, medical, military, aerospace, automotive, logistics, food and beverage, fitness, gaming and more.

Q: How to control gear motor speed?

A: Speed is typically controlled by manual operation on the driver or by an external switch, or with an external 0~10 VDC. Speed control systems typically utilize gearheads to increase output torque. Gear types range from spur, worm or helical / hypoid depending on torque demands and budgets.

Q: How many types of gear motor are there?

A: The two most common gear motor types are right-angle gear motors that use worm, bevel, or hypoid gearing and inline gear motors, which typically use spur gears or planetary gear sets. Worm, spur, and planetary gear technology is most frequently used in many gearmotor designs.

Q: Can you adjust motor speed?

A: By modulating or changing the timing of these pulses, the speed of the motor can be controlled. So, the longer the pulse is “ON,” the motor will rotate faster, while conversely, the shorter the time the pulse is “ON,” the slower the motor will rotate.

Q: How long do mid-drive motors last?

A: Mid-drive motors are generally compatible with belt drives and may be able to provide up to 5,000 miles of riding without needing to be replaced.

Q: What is the lifespan of a hub motor?

A: The life expectancy of an e-bike hub motor can vary depending on usage and maintenance. With proper care, a quality hub motor can last for several years or thousands of miles. Regular maintenance, such as keeping the motor clean and dry, can help extend its lifespan.

Q: What is the use of hub motor?

A: Electric Bicycles and Scooters: Hub motors are commonly used in electric bicycles and scooters, providing direct drive to the wheels. They are compact and lightweight, making them suitable for these portable and energy-efficient modes of transportation.

As one of the leading high-speed electric motorcycle series products manufacturers and suppliers in China, we warmly welcome you to buy cheap high-speed electric motorcycle series products made in China here from our factory. All customized products are with high quality and competitive price. For quotation and free sample, contact us now.

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