
This is to certify that Wuxi Muodou Intelligent Technology Co.,Ltd is a subsidiary of Jiangsu Dalong Jianhao New Energy Industry Co.,Ltd, fully responsible for the company's foreign trade affairs.

Q1: Do your company provide sample service?
A: Yes, we can provide sample service.
Q2: How long is the sample leading time?
A1: If you accept the features of our goods in stock, we can send the sample within 7 days.( because we need 7 days to produce the right charger to suit your market)
A2: If we have no this model in stock or if you want customized service, we may need 30 days.
Q3: How much does the sample cost?
A: Before quoting sample price, we will quote you on bulk quantity order. For example, the price is $325.
- If you accept the features of our products in stock, the sample cost is $325. (in Ex-works).
- If we have no this model in stock or if you want customized service, the sample cost is $325+ $200 (in Ex-works).
- Most important: Sample cost will be all returned after bulk order confirmed. Every 50pcs you purchase, we will return the cost of one sample.
Q4: Which points can be customized?
A1: We can customized the battery, motor, controller, brake system, max speed, climbing ability as you want.
A2: Logo and color can be customized as your request.

Generally speaking, there are 4 different package methods, CKD, SKD, DKD and Whole assembly package. Among these 4 different packages,CKD and DKD are mostly widely used.

The plastic coating on the surface of the plastic shell is a very important part in the production process of electric vehicles, which will directly affect the quality of the finished electric vehicles.
1. Normally, it has two different plastic coating: PU coating and UV coating.
2. The difference between PU coating and UV coating:

1. Change to a larger capacity battery. Compared with an electric vehicle using a 60V 20AH acid battery, another electric vehicle using a 72V 20AH acid battery can ride longer.
2. The smaller the load of the electric bicycle, the longer the riding distance. A person of 100kg and a person of 60kg have different mileages when riding the same electric bicycle under full power.
3. The gentler the rider's riding habits, the farther the range of the electric bike. The vehicle maintains a medium-speed and constant-speed driving, which can increase the mileage. Frequently sudden braking or high-speed driving can also lead to increased power consumption.
4. The electric vehicle has a longer driving range when the tire pressure is sufficient. Insufficient tire pressure will increase the friction between the tire and the road and increase power consumption.
5. Don't drive too fast, the power consumption of electric vehicles at the highest speed is amazing.Ride twice as fast, the power consumption is 3 to 5 times faster! High power consumption means that the whole distance of the electric bike is short. While driving at low speed and constant speed, not only the driving distance is longer, but also an effective way to protect the battery.

Nowadays, electric vehicle is the main means of transportation in family, peopleare generally concerned about electric vehicle batteries. In case the battery can not work, they will replace the battery in time.But the attention to the tires of the electric vehicle is very low, It is considered that tire just make sure they can ride, unless the tires can not be filled, or the tires wear out, they will think about changing a tire.

Disc brake:
The disc brake is that disc pushes the brake caliper through the hydraulic pump, and grasps the brake disc. Different from the hub brake, more linear and It doesn't stop all of a sudden.

Generally speaking, the climbing ability of an electric motorcycle is reflected by the size of the climbing angle.
The meaning of the climbing angle:
This slope is not the angle of the slope we usually understand, but the ratio of the height of the slope to the horizontal distance, which is generally expressed as a percentage.
That is, slope = (height of the slope/horizontal distance of the slope) * 100%.

According to the national standard "speedometer for automobiles" (GB15082-2008), the speedometer indicates that the speed of the vehicle must not be lower than the actual speed.
Considering the tolerance errors on the speedometer, in order to prevent speeding, we manufacturers usually make the displayed speed higher than actual speed.
But meanwhile, the following relationship should be satisfied between the displayed speed and the actual speed:
1. Displayed speed ≥ Actual speed
2. Displayed speed ≤ Actual sped + Actual speed/10 + 4km/h
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