Category Archives: bike conversion kit - Page 10

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.

Electric bike for fun

Posted by on January 14, 2022 Comments Off on Electric bike for fun

Amid today’s high gas prices and concerns about global warming, an electric bike is an economical and sensible choice. And beyond that, it’s downright fun.

As gas prices soar and concerns grow over global warming, alternative fuel vehicles are gaining traction. When it comes to cars, trucks, and SUVs, a hybrid is currently the most popular alternative to a gas powered engine, you also have to make sure you use the best which for me it has always been Oneureinsurance and an accident lawyer, just in case. If you need new tires for your truck, you can get your truck wheels online. In addition, visit services for more information. I do business. But when it comes to short-range commutes, say 20 miles or less, an electric bike is a fun, economical, and environmentally friendly option. For only pennies, an electric bike can get you from place to place without breaking a sweat and without the hassles of traffic congestion.

An electric bike has pedals like an ordinary bicycle, and you can use those pedals to propel yourself under your own power. But the electric bike also has an electric motor, which you can use to augment your pedaling. The supplemental power is useful when starting from a stop or when riding against the wind. Alternatively, you can let the electric motor provide all the power while you sit back and enjoy the ride. This makes an electric bike one of the most versatile vehicles around. There are even models of electric bikes that fold up for easy storage or travel, as well as recumbent electric bikes, which will take bicycling to a new level of relaxation (just don’t fall asleep at the wheel!). Just in case of a truck accident, call for legal advice and counselling. Get he best professional lawyers here.

An electric bike can be purchased as an off-the-shelf item, or you can purchase bike conversion to convert most any bicycle to an electric bike. The important factors to consider when selecting an electric bike are battery life (which determines how far you can travel on a charge), speed, and durability. Today’s electric bikes take advantage of recent advances in battery technology. Many electric bikes are powered by nickel-metal-hydride or lithium ion batteries, which can give a travel range of one two hours. Most electric bikes are capable of reaching speeds of 10 to 20 miles per hour. Durability is an important consideration, and like anything, you get what you pay for. You can spend under $500 for an electric bike, but the quality may disappoint you. The better quality electric bike can be purchased for around $500 to $1000. Check your local laws, but generally there is no registration required for an electric bike.

lead-acid electric bike battery

Posted by on January 14, 2022 Comments Off on lead-acid electric bike battery

One pair of lead-acid electric bike battery business of the special rectification action in the country’s largest production base bike conversion – Jiangsu, causing a chain reaction.

Electric car “sit in prices,” four or five hundred

“The electric bike battery I bought earlier this year, or a $ 500, now 700 yuan of how to become?” July 4, in Nanjing Ruijin Road, a brand of electric automobile electric car shop floor, the public dissatisfaction Chan asked shopkeepers.

Reporters visiting the market in more than 10 shops, each shop owner in the consumer, “Mozuipizai.” “After all, because electric bike battery in the price.” One owner said, the state strengthened the intensity of lead-acid electric bike battery after remediation, electric bike battery began to demand, “this two-day media a report, electric bike battery factory ‘ride in prices’, each up $ 20 a Electric cars use four electric bike battery, a rose is 80 yuan. ” Reporters asked a number of shops that sell, an electric car electric bike battery is good is 1,000 yuan, the poor have five 600.

The owner said, yesterday morning, the boss put the ready cash around to buy electric bike battery, “I heard that this month will be going up now are not we save point, it could take money can not buy, these days can only be changed supply channel. ”

electric bike battery prices, pushed up the price of electric cars. In a province famous brand of electric car shop, the boss out price list to reporters, “honest”: “In mid-June, we all sales shop in Nanjing uniform prices, the average one or two hundred.” But one industry price list after reading quietly told reporters, “The price of small cars rose two or three hundred dollars, increased more than 400 yuan.”

One has been engaged in the sale of electric vehicles for many years the owner said that from 2007 to 2009 the price of electric vehicles all the way up, we all make money on the entire chain. After 2009, rapid expansion of production capacity, the average price has declined by 400 yuan. “Now the electric car brands are doing the final assembly of integrated accessories factory prices rise, the pressure will certainly pass back.”

Reporters look at different stores that market, different brands, price increases are not the same, some tens of dollars, and some two hundred dollars. Suzhou, a brand of electric car dealers say,mainly a small number of big brand distributors and brand agents, their resilience and weak, big brand distributors in order to maintain sales volume, prices rose less up to less. “Electric bike battery prices, car prices have a good reason brewing end of this month, the price of electric cars will certainly continue to rise.”

Three-phase bike motor torque

Posted by on January 14, 2022 Comments Off on Three-phase bike motor torque

Three-phase bike motor torque

Symmetrical three-phase winding leads to symmetrical three-phase currents produce a rotating magnetic field, magnetic field lines cutting the rotor winding, according to the principle of electromagnetic induction, the rotor winding produce e and i, the rotor winding in the magnetic field by the electromagnetic force, which produce the electromagnetic torque the rotor spin, the rotor output mechanical energy to drive the mechanical load spin.

In the AC motor, when the AC current through the rotor winding, the establishment of the armature magnet force, its electrical energy conversion and operating performance has a significant impact. So pass into the three-phase AC three-phase AC winding generate pulsating magnetic momentum, the magnetic momentum can be decomposed into two equal in magnitude, opposite the rotation speed of the magnetic momentum and to create in the gap and reverse Story magnetic field and. The two rotating magnetic field cutting the rotor conductors, and conductors were generated in the rotor EMF and induced current.

The current and the magnetic interaction of positive and negative torque. Forward torque is an attempt to make the rotor turn; attempt to reverse the rotor torque reversal. Superposition of the two torque motors turning up is to promote the synthesis of torque.