Category Archives: bike conversion kit - Page 3

High power motors

Posted by on January 29, 2022 Comments Off on High power motors

I have tested the new wheels and the performance from them is perfect.

I have tried them in my bike that has the 24″ 48v1000w rear wheel that I bought from leafmotor in July 2010. This bike has 48v Lifepo4 battery and max speed is 36km/h with the July 2010 motor.
When I put the new 26″ 48v1000w wheel in this bike max speed is 50 km/h.
Then I tried the 26″ wheel in another bike also with another 48v Lifepo4 battery and the performance is also good.
I am interested to find the answer. I dis-assembled the new 26″ hub and the old July 2010 24″ hub and swapped the axle and windings from each motor, re-assembled them and tested again. The 26″ wheel now has 39km/h max speed and the old 24″ is 46km/h.

This tells us that the axle windings in each of the new wheels have much higher power capability than the older wheel.

Actually old hub motor and new hub are the same cost.
Everything is no changed,the same hub,the same rotor,the same magnet,except coil wires.
Change the gauge of the coil wires and/or the turns number of the coils can adjust motor speed,power etc.
Old hub motor is standard motor,it’s fit for US transportation law.26″ 36V 750W, the speed is 20 miles/hour.
If need extra speed,power etc..We can customize as your need.

I am also satisfactory with my bicycle.
18″ 48V 1000W hub motor speed:17 miles/hour

High power performance motor doesn’t depend on speed or power,but customers’ need,law allowed.

My 48V 15-MOS-FET brushless controller drive 700c 48V 1000W electric bike motor,has enough power to climb hill.

This is a reliable hub motor,never meet any problem in 1 year.

I ordered the same motor(hbl 36V 750W hub motor) last month and repeat testing it,perfect.

Not surprising.This electric motor is ripe product and used for e-bikes widely in China.Anywhere you can find this kind of hub motor in China.
You did make a good choice and ordered ripe motor.It’s better than internal control motor.That kind the controller is built inside the motor,because of high temp,easy to break controller.If the internal controller is broken,all system is dead,should replace controller and motor together.

After repaired this hub motor by myself as instructions shown on this forum.I am much better to like this motor,like leafmotor’s forum.

Received my 700c 48V 1000W electric bike kit two weeks ago and took 1 day to done installation.Ride it per day,be satisfying with motor powerful

This is brushless gearless high speed motor, compare to brushless geared motor.The second one has more powerful,but with a little gear noise.Now 750w and 1000w brushless geared hub motors can’t find in market.Most of geared motors are 250w.

We always think faster,better.But because of local law for ebike so that we can’t ride high power motor bike.
I received 36V 750W hub motor,then make a label ” 36V 500W” on it.

From you test,you think faster speed motor is more powerful,actually you are wrong.
Estimate motor performance:faster speed,less powerful,slower,more powerful.

About motor speed,power,I think leafmotor can customize it according as customers’ actual need.

electric bike motor

Posted by on January 27, 2022 Comments Off on electric bike motor

Hub motor,bldc motor,brushless motor,gasoline motor..Any kind of motor,used for electric bike,we call bike motor.

In North America and Europe,gasoline motor is still used for electric bike.Picture enclosed.It can’t received by most of people.

Electric gasoline motor bike,call it an electric bike?But it makes pollution.Call it motorcycle?But it more dangerous than motorcycle, they both have high speed.But the tyre of gasoline motor bike is the same to common electric bike.

Be tired for one week work,please be far from pollution – choose electric motor bike.

Our electric bike motor:
1.14″ 16″ 18″ 36V 750W & 48V 1000W front & rear casting hub motor;
2.20″ 24″ 26″ 700c 28″ 36V 750W & 48V 1000W front & rear spoke hub motor;
3.12″ 16″ 18″ 36V 250W & 24V 250W front & rear casting hub motor;
2.20″ 24″ 26″ 700c 28″ 36V 250W & 24V 250W front & rear spoke hub motor;
Speed from 5~30miles.

Welcome to customise.

Convert electric bike motor kit isn’t too difficult.You need below tools:
1.1 pcs of open-end wrench
2.1 pcs of phillips screwdriver
3.1 pcs of voltmeter
4.some zip-ties

How to install electric bike kit?
1.Make your bike upside down;
2.Use open-end wrench to loose both nuts and remove the front or rear wheel;
3.Find out the direction of motor runs;
4.Fix motorized wheel on your bike;
5.Use open-end wrench to tight both nuts;
6.Connect wires;
7.Make your wheel in the air,power on battery and test;
8.If it can’ work.Please use volt-meter to measure.

Electric bike kit does not work

Posted by on January 25, 2022 Comments Off on Electric bike kit does not work

Q:Received electric bike kit and assembled it according to the instructions,but nothing happens as turn the key and press the throttle. No sound, no movement. Every cable is connected as it should be. Tested the battery with a multimeter,it’s okay.
A:If the battery is no problem.Please test it as below:
1.Disconnect all external wires from brushless controller,except battery power wires and motor wires(blue,yellow and green three thick wires) and hall sensor wires(red,black,blue,yellow and green five thin wires);
2.Make your hub motor wheel in the air;
3.Find a three-pin throttle connector from motor controller,there are red,black and green three wires.Use a wire to jump red and green wires.

If your electric motor and controller are okay,it can run as the fastest speed suddenly.
If not,use your hand to turn your motor,be careful.Motor may run.
If work,problem may come from throttle wire connecting.

Solve:Check throttle connector and wire connecting.

Q:If still can’t work.
A:Should use voltmeter to test motor hall sensor(five wires):
1.The voltage of red and black wires is approximate 4.5V
2.The voltage of blue and black wires is approximate 4.5V or 0V(use hand to turn motor,it will change from 4.5V-0V)
3.The voltage of yellow and black wires is approximate 0V or 4.5V(use hand to turn motor,it will change from 0V-4.5V)
4.The voltage of green and black wires is approximate 4.5V or 0V(use hand to turn motor,it will change from 4.5V-0V)

If can’t get voltage from these wires,controller may broken or motor hall sensor is broken.

Received DIY kit does not work

Posted by on January 15, 2022 Comments Off on Received DIY kit does not work

I received your DIY electric bike kit about three weeks ago. 750W 36V with brushless controller. I have assembled it according to the instructions on your site, but one issue have arisen.Nothing happens as I turn the key and press the throttle. No sound, no movement. Every cable is connected as it should be. I’ve tested the battery with a multimeter,and the output is 36V, so there is nothing wrong there. I also tried connecting just the battery and the controller with no results.
I have tested the connection to the controller from the battery, and the multimeter reads 36V. The cables have been checked for bad connections,so I would think that the controller is faulty.

Answer 1:
The same problem to mine.At last I solve it.The problem comes from the wrong connecting.

Answer 2:
Remove all wires,except throttle and power wires.Twist your throttle,if still not run,please check the voltage from throttle.
The voltage of green and black wires is about 2.3V;
The voltage of red and black wires is about 4.5V.
If no any voltage from this throttle,check battery.If do have voltage input the controller,but no output from throttle.This controller may broken.Re-check wire connecting whether handle brake is hold off.

Answer 3:
Yeah,do it as Joe Horn said.
BTW,if your e bike kit is brushed,not brushless.
It’s easy.Connect two wires from your motor to the battery directly,the motor will run as the fastest speed at once.

Answer 4:
If the battery is no problem.Please test it as below:
1.Disconnect all external wires from brushless controller,except battery power wires and motor wires(blue,yellow and green three thick wires) and hall sensor wires(red,black,blue,yellow and green five thin wires);
2.Make your hub motor wheel in the air;
3.Find a three-pin throttle connector from motor controller,there are red,black and green three wires.Use a wire to jump red and green wires.
If your electric motor and controller are okay,it can run as the fastest speed suddenly.
If not,use your hand to turn your motor,be careful.Motor may run.
If work,problem may come from throttle wire connecting.
If still can’t work.Should use voltmeter to test motor hall sensor(five wires):
1.The voltage of red and black wires is approximate 4.5V
2.The voltage of blue and black wires is approximate 4.5V or 0V(use hand to turn motor,it will change from 4.5V-0V)
3.The voltage of yellow and black wires is approximate 0V or 4.5V(use hand to turn motor,it will change from 0V-4.5V)
4.The voltage of green and black wires is approximate 4.5V or 0V(use hand to turn motor,it will change from 4.5V-0V)
If can’t get voltage from these wires,controller may broken or motor hall sensor is broken.

Answer 5:
Re-check wire connecting and connectors,most of problems come from wrong wire connecting and loose connectors.
One in a thousand products’ fault.Any goods should test more than 2 times before we received.

Answer 6:
Thanks,all.I found the problem.The three pin male and female connectors can’t connect well.Re-made these two connectors,motor worked well without any noise.Perfect.

Answer 7:
Before ride your bike on road,had better to fix these connectors firm,if not,sometimes your e-bike will stop sudden when everything works well.

Answer 8:
I met this problem before,bike conversion kit can’t work,but shook cable,the system run as the fast speed.

Answer 9:
I re-made all connectors since received my first e bike kit.And connected all wires as leafmotor instruction,no any installation trouble.

BEST ANSWER:The fourth

36V 250W electric bike kit

Posted by on January 15, 2022 Comments Off on 36V 250W electric bike kit

There is also one of the most popular this days that is riding a bicycle is a great non-polluting way to get exercise and get around, but a steep hill or a long commute can turn into an unpleasantly sweaty affair. Converting a bicycle into an electric bicycle can create a vehicle with all the advantages of a regular bike, but with a little power assist to get past the disadvantages. You can assemble a set of components on your own or buy a matched electric bike conversion kit!

Standard Europe type: 26″ 36V 250W electric bike kit,15 miles per hour

Compare to buy a new electric bicycle,order an electric bike conversion kit to convert your existing common bicycle to be electric,less cost.

Leafmotor has all size of 36V 250W Europe type bike conversion kits for e-bikes,such as 12″ 16″ front/rear casting hub motor wheels and 20″ 24″ 26″ 700 28″ front/rear spoke hub motor wheels.

More info about key products:
1.Motor:36V 250W brushless geared motor,it’s more powerful than 250w brushless gearless motor.
Front motor can be installed disc brake on motor and is fit for standard 100mm front fork,rear motor can be both installed disc brake and freewheel that is fit for stardard 135mm rear fork.
2.Controller:36V brushless controller working with LCD.It’s a new product that can display speed, mileage,battery gauge etc.
3.Throttle:twist throttle or thumb throttle(Default is twist throttle)
4.Brake lever with low voltage switch off
5.Three button ON/OFF switch is used to control front&rear lights,horn,cruise…

electric bike kit for e-bike

Posted by on January 15, 2022 Comments Off on electric bike kit for e-bike

Q:I want to buy for my Merida cross 5100:
-Front bike hub motor 48 V/ 1000W
-48V Thumb Throttle
-Battery LEV-High Speed 4812
– wires to throttle and battery.

But I have the questions:
1.I need spokes for 28″ wheel. Are they attached to motor, and how much are they if not?
2. The battery could be fixed only on trunk or on frame too?
3. I`m living in St. Petersburg, Russia. What type of delivery is most economic and how much it will be?

Answer 1:The most economic is that ship by international parcel.It’s much cheaper than EMS.We often use this way to ship packages to Russia.But It takes long time to ship and hard to track the status of package.
About your order,I want to give your some suggestion:
1.This 48V/1000W motor is good.Most of our customers have used this motor more than 3-5 years and never meet problem.
2.Thumb throttle,No problem
3.Li-Battery costs expensive,but its life is short.Though many battery companies called their batteries have high quality,it’s not true.Most of Li-batteries will meet problem in 1 year.For example:your notebook PC’s li battery.
Do you have brushless controller to drive this 28″ hub motor?

Answer 2:spokes may in attachment hub motor
please email to leafmotor:sales@leafmotor.com
You also order electric bike conversion kit on leafmotor’s internet shop.
And DIY your favorable bike kit.

16 inch 36V 250W front electric hub motor kit

Posted by on January 15, 2022 Comments Off on 16 inch 36V 250W front electric hub motor kit

With the price of gasoline rise and pollution,a bicycle is good for an environmentalist.

Riding a bicycle is a great non-polluting way to get exercise and get around, but a steep hill or a long commute can turn into an unpleasantly sweaty affair. Converting a bicycle into an electric bicycle can create a vehicle with all the advantages of a regular bike, but with a little power assist to get past the disadvantages. You can assemble a set of components on your own or buy a matched electric bike conversion kit!

Compare to buy a new electric bicycle,order an electric bike kit to convert your existing common bicycle to be electric,less cost.

Leafmotor has one new type of e bike kit for old men and children.
It’s a 16″ front 36V 250w electric bike kit that includes:
1.16″ 36V 250W front casted brushless gearless hub motor is fit for 100mm front fork.
2.36V 250W 6-MOSFET brushless motor controller working with LCD,display speed,mileage,battery gauge..
3.Twist throttle or thumb throttle(default is twist throttle)
4.Brake lever
5.Three button ON/OFF switch is used to control front&rear lights,horn,cruise…

This hub motor is make up of aluminium hub,cover,magnet,rotor, winding,axis etc.The net weight is about 5.13kg,use 16×2 1/4″tyre. Motor speed,we can customize according as your actually need.

check your electric bike conversion kit system

Posted by on January 15, 2022 Comments Off on check your electric bike conversion kit system

Received electric bike kit,but it doesn’t work.How to test this system?

When you put on your li battery,three leds on throttle should light together.If only red led is on,please check your battery.If your battery shows 59 volts and three leds is also on.But when you turn your throttle,only red led is on.The problem is from this EV battery.

Use a voltmeter to measure,supply power to your controller and measure as below:

1.Six-pin hall sensor connector(red,black,green,blue,yellow wires)
..The voltage between red and black wires is about 4.5V;
..The voltage between green and black wires is about 4.5V;(use your hand to turn the wheel,the voltage will change from 4.5V~0V)
..The voltage between blue and black wires is about 0V;(use your hand to turn the wheel,the voltage will change from 0V~4.5V)
..The voltage between yellow and black wires is about 4.5V;(use your hand to turn the wheel,the voltage will change from 4.5V~0V)

2.Three-pin connector to throttle(black,red,green wires)
..The voltage between red and black wires is about 4.5V;
..The voltage between green adn black wires is about 2.3V;

3.Two-pin connector to handle lever(white and black wires)
..The voltage between white and black wires is about 4.5V;

4.Two-pin connector to crusie(brown and black wires)
..The voltage between brown and black wires is about 4.5V;

5.Three-pin black SM connector is used for PAS.
6.1 pcs of purple wire should be connected to the positive of battery(It seems a lock)
7.Two grey wires are used for HALF/FULL speed.

If you can get these data,the system NO Problem.

order a bike kit from leafmotor

Posted by on January 14, 2022 Comments Off on order a bike kit from leafmotor

Oct 12th,2011 Order a bike kit from leafmotor’s Internet shop.
Detail:Bike Conversion Kit Item# 700c 701kit -1 -36F
Product list:
1.700c 36V 250W HBM-011 brushless geared bike motor front wheel,more powerful than others in the market
2.36V brushless controller working with LCD can display speed,milage,battery gauge..It’s very cool.
3.twist throttle looks nice
4.brake lever
5.three-button switches
6.PAS
Oct 14th,2011 Leafmotor shipped my package to ××× CA,USA
EMS tracking number:EE266×××718CN
Oct 17th,2011 Monday morning received my package.
Very surprize with quick and nice service.
See my package:

your choose of bike kit

Posted by on January 14, 2022 Comments Off on your choose of bike kit

The interest in electric bicycles and other Light Electric Vehicles (LEVs) is exploding as gas prices rise across the globe. LEVs are perfect for those who are tired of sitting in traffic or being cramped into crowded public transportation. But with any major purchase, be sure to do your research. Here are 3 things you should keep in mind before making your purchase.

As gas prices rise across the globe, so does the interest in electric bicycles and other Light Electric Vehicles (LEVs). These LEVs are perfect for those who are tired of sitting in traffic or being cramped into crowded public transportation. But like any major purchase, it’s worth doing right. Here are three things you should keep in mind before making your purchase.

Bike Motor Kit?

One of the first questions you’ll face when upgrading to an electric bicycle is whether to buy a separate bicycle or upgrade your current one. To upgrade your current bicycle, you can purchase a motor kit designed for this purpose. This might seem intimidating – but don’t let it be. All the best electric bicycle motor kits come with easy-to-follow installation instructions. Installation is quick, too. You could get your kit and be riding your new bike in the same day. For those who prefer to be hands off, there are plenty of options for buying ready-to-go bicycles. Both of these options function just like a normal bicycle except with some extra battery assistance. You won’t be getting the same speed and power as you would from a motorcycle.

Know Your State’s Law

If you’re planning to purchase an electric bicycle to use in the United States, you need to be aware of your own state’s laws. Most states hold up the national policy that electric bikes must operate under 20 mph and have a limit of 750 watts. However, the companies who produce these bicycles are not regulated. This means they could produce a bicycle or motor kit that could be illegal. Also, most states don’t require you to get special insurance for your electric bicycle as you would need for a regular company. But you’ll want to check the Internet for any changes in policy that might occur. Since electric bicycles are relatively new, the laws and regulations around them could change very quickly.

Choosing a Battery

When purchasing an electric bicycle or a motor kit, you’ll come across various options for the battery power. More than anything, the choice of battery depends on how you will be using your bicycle. Riding in hilly areas or adding additional weight by pulling a trailer will drain battery power faster. Your best selection would be a Lithium Ion (Li Ion) battery as it surpasses all other battery types in the number of recharge cycles it can go through. Basically this means that you can go longer without having to purchase a new battery. Also, just like all other batteries, these batteries come in different voltages. Though the higher voltages will cost you more money, they will last longer and perform better, we offer you including financing assistance.

Purchasing an electric bicycle for the first time can be a confusing experience. However, deciding whether you want a new bike or a motor kit, knowing your local laws, and choosing the best battery for your needs will help you make the best purchasing decision possible.