Leaf hub motor bike kit is working

Q: The bike conversion kit system is now working.
Still have some questions. It is about the brakes.
If we take the red and black wires from the scooter brakes and connect in parallel to the connection of the new hub motor controller, will this have a negative effect on the controllers? My friend thinks that this should not be a problem since this only brakes a circuit.

A: About that brake has two types.ONE is high voltage to brake.The other is low voltage to brake.
Ours is low voltage to brake,you should check your old hub motor controller whether that is low voltage to brake.
If you have volt-meter,you could get about 5V from red and black wires from your old hub motor controller.If it's 5V.That's no problem to parcellel.

Q: We finally got the chance to try the new bike conversion kit wheel after doing all the modifications except for the front brake which we still have to modify.

We have a new problem and I need your expertise. I tested the bike conversion kit wheel up the hill and on its own (without using the rear wheel motor). It went up the hill at about 17 km/hr……..which I think it is satisfactory.

However when I took it up a steeper but very short incline which is on my way home, the fuse connected to the batteries got blown (caput) and lost power (no electricity).

The fuse is gauged at 10A. What should I do to avoid blowing out the fuse? If I change the fuse to a different amperage, will this have negative consequences for the rear motor? Do you suggest anything different?

As always, appreciate your assistance.

A: When up the hill,the current will reach about 15A.If too steep hill,it will reach more than 20A.

20A-30A current is easy to break controller.

Sometimes 15A continuous current for about half an hour also can break controller that's because of too hot will break hub motor controller's MOSFET.

We suggest:

* Cool controller is important. 

* When you up hill,use two hub motors.On the flat road,use one motor.

Our hub motor bike conversion kit can't get any problem when your up any hill.But should cool controller.

Use 15A-20A fuse.Had better to use 15A.But if use 20A fuse,climb hill has more power.But we worry controller.

Electric Hub Motor | E-Bike Conversion Kit™: Electric hub motor and brushless dc controller inf...

Electric Hub Motor | E-Bike Conversion Kit™: Electric hub motor and brushless dc controller inf...: Q: We are interested in using your bike conversion kit in this project, however, due to specific project requests, we have the following q...

Electric hub motor and brushless dc controller information

Q: We are interested in using your bike conversion kit in this project, however, due to specific project requests, we have the following questions.

First question: Do you have any brushless DC controller which allows hub motor rotation inversion?

Second question: Could you send us some documentation containing information about the brushless DC controller for the 48V/1000W bike conversion kit ? (i.e. pin description) 

Third question: We have found two hub motor models over 1000W of output power (BLW-16B and BLW-20B) in your leaf motor website. However, in the performance datasheet of the BLW-16B, the maximum output power mentioned is 1037.32W. Is there any motor with output power of 2000W (we need to reach 60 Km/h)? Do you have a different brushless DC controller for these electric bike motors?  

Fourth question: We would like to use your LCD in our project. Is the LCD independent of the brushless DC controller? What are the inputs necessary to the LCD to display the information (speed, voltage, mileage etc.)?

A: We have 24V 250w, 36V 250w.36v 750w‚ and 48V 1000w LCD controllers to drive our brushless electric bike motors.

If you need 48v 1000w motor for e-bike. Generally, choice HBL motor.

That BLW-16B and BLW-20B are used for e-motorcycle, e-tricycle.

The power can reach 2000W, Speed:>60km/h    

The performance data you saw show Max 1037.32W.Because we test this BLW-16B through 48V 25A 9-MOSFET controller.

This hub motor had better to use 48V 15 MOSFET or 18 MOSFET controller to test.

Now we have 48V 15MOSFET BLDC motor controller to drive this hub motor, but no led.

BLW-16B and BLW-20B are the same hub motor, the difference between them is casted hub.

BLW-16B is 10 inch casted hub and uses 16 - 4.00 inch tire..

BLW-20B is 12 inch casted hub and uses 20 - 4.00 inch tire.

Our LCD must work with our BLDC controller, don't input anything. There is a signal wire to test speed. Just set the size of wheel.

When electric bike kit system works, LCD will display speed, battery gauge, mileage..

Q: Probably we are going to use the BLW-20B hub motor. We are designing an e-tricycle which should allow the driver to move back and forward. It means that we need a BLDC controller which allows the motor to rotate in two directions. Do you have a controller like this? In case you do not have, we are interested in using your LCD to a different controller (we have already found a controller that allows two direction rotation). Is that possible?

A: We have 48V 15-MOSFET brushless controller that can forward and reverse (two direction rotation),but No LCD now.

Now 48V 12-MOSFET can work with LCD, but it's hard to drive this BLW-20B when power more than 1000w hub motor.

Now few customers order this 48V 15MOSFET controller for bike conversion kit.

front spoke bike motor for electric bicycle - 36V 750W

https://www.leafmotor.com

36V 750W front electric bike motor

New 20 inch 48V 1000W front hub motor electric bike conversion kit

https://www.leafbike.com/
The conversion kit combines the full E-bike technology: direct drive Brushless Gearless high torque hub Motor to change almost every bicycle into a personal electric bike. Save energy, protect environment and save money with a lot of fun.
Main Features:
Rim : 20" Alloy ( tire : 20 × 1.5 “ , 20 × 1.75" , 20 × 1.95" )
Hub motor: brushless gearless dc motor
Controller: LCD display
Speed: 20.5 miles / hour
Mechanical brake: Disk-brake / V-brake
Install: spacing of 100mm fork
Package Content:
1 x 20" New 48V 1000W front hub motor wheel No tire
1 x 48V 1000W 12-MOSFET motor controller
1 x LCD ( display speed, mileage, battery gauge.. )
1 x Twist throttle No battery gauge
1 x Brake lever
1 x Three button switches
Net weight: 10.5Kg   /  23 lbs
Package Size: 52cm L x 22cm W x 51cm H  /  20.5"  L x 8.7" W x 20" H
Package Type: Cardboard Box
20 inch 48V 52V 1000W hub motor electric bike kit - front wheel

Electric Hub Motor | E-Bike Conversion Kit™: How to connect wires with leaf 1000W hub motor ele...

Electric Hub Motor | E-Bike Conversion Kit™: How to connect wires with leaf 1000W hub motor ele...: I have wired up some items to my bike, but I am unsure how to wire certain things up. Please view the pictures to see what I mean: Attachme...

How to connect wires with leaf 1000W hub motor electric bike conversion kit

I have wired up some items to my bike, but I am unsure how to wire certain things up. Please view the pictures to see what I mean: Attachment called - Controller Wires - Which color to which color of the hub motor do I connect to ? There are three thick wires on the BLDC Motor Controller that look like connectors to they connect to the motor. Unfortunately, I do not know what color to map them to. I did connect blue to blue and green to green, but the wheel responded briefly, then the LCD screen shut off.. I would have to switch the power off and on again for it to come back. I have not gone any further as it gave me the impression I could do some damage if I continued. Attachment called - Bike Motor - Which colors connect to the colored wires of the brushless hub motor Controller This is the connectors on the hub I need you to identify for the Controller, which wire connects to what? Connecting the green to green, black to black, there is another yellowish/greenish wire on the motor that has no equivalent colored wire on the controller. The controller has a black think wire - does this yellow/green wire connect to the black? Attachment called - Light Switch & wire I do not know what this is and what it is used for - I presume a light to work from the battery. Where do I wire this to? Does it connect to the BLDC motor controller? if so, where. I found your video's quite difficult to follow as it is difficult to work out what is connected to what and how and I do not see anyone triggering anything to start the electric bike motor wheel when it starts working. Would you be able to send me some diagrams or written instructions on setting this up from scratch? See attachment ‘BLDC Motor Controller Wires’: The green and blue wires are present on your diagram, but the thick black one isn’t – where is it supposed to go? The other attachment ‘Motor Wires’: There is a Dark green wire, Dark Blue wire and a Yellowish Wire (I say yellowish as it seems to have a hint of green in it – in other words it is not too clear).. The green and blue I can match to the green and blue on the brushless hub motor controller, but what about the Yellow/green wire? I have attached these wires in various combinations, with the power coming on and empowering everything other than the wheel. The electric bike motor wheel will ‘shudder’ when I slightly twist the throttle but the whole thing will shutdown and I will have to turn off and on again to get it back. I did this a few times with the same result. I rearranged the wires again, with all items turning on, but the bike motor wheel did not respond. I eventually realised the controller wire heating up and turned everything off. I have left it for a while, but when I tried it again the power did not come on any device.