Torque sensor 48V 350W electric bicycle middle motor kit with high torque for mounting ebike kit

Quick information for this motor:

Voltage:	36V/48V	Power:	250W/350W
Wheel size:	20-29''	Weight:	4.2kg
Max torque:	80Nm	Chain wheel:	38T/42T/52T
Max speed:	30km/h	PAS sensor:	Torque sensor inside
Controller inside

Reference Structural Drawing:

ou should make sure the size of your Bottom bracket is 68mm:

Usually most of the regular bike's size is 68mm.

What is torque sensor and what is the strength?

Torque sensor means the motor works as long as there is strength on the pedal.

The speed sensor means the motor will work only when the pedal move.

Which makes a big difference on hilling, when you face a high mounting, you can even not make the pedal move, so the speed sensor wont work , but if you are with the torque sensor, the motor will runs without any problem.

In one word, this torque sensor system is very good at hilling/mounting.

Wiring diagram:

We will pack motor kit in one carton with very good protection:

The shipping cost for one sample is about 60-100$ according to your locataion.
We can give sample cost refund when you order in batch after the sample testing.
20inch container can contain about 1000 kits
40inch container can contain about 2000 kits
Will be more quantity if you dont need the rims and spokes assembled.

For samples we can only delivery by express like DHL,UPS,FEDEX and so on.

(battery delivery in separate pack)

Warranty:
Motor---3 years
Battery--2 years
The others--1 year
You only need to send us the video or pic to show the problem and the series number ,we will ship the new one or the repair
parts together with the next shippment. Also will be post by air if need urgent!
Accordning to your experience , the defective pecentage is only about 1‰.

OEM&ODM:
You are welcome to send OEM and ODM request to make your products competitive !

Changzhou Suring motor technology co.,Ltd