Tag Archives: hub motor - Page 11

Electric bike kits for e-bikes

Posted by on December 7, 2022 Comments Off on Electric bike kits for e-bikes

Convert original bike to e-bike should purchase one set of electric bike kit.In market,there are two kinds of electric bike kits.One is electric motor wheel with accessories,the other is bldc motor with chain drive.The second one is hard to convert,so most of people like the first type of e bike kit.

About first hub motor wheel kit,European like 250w electric bike kits,but 750w and 1000w e bike kits more popular in North America.

Leafmotor has below electric bike kits:
1.16″ 18″ 20″ 24″ 26″ 700c 28″ 24V 250W electric bike motor kit
2.16″ 18″ 20″ 24″ 26″ 700c 28″ 36V 250W electric bike motor kit;
3.14″ 16″ 18″ 20″ 24″ 26″ 700c 28″ 36V 500W electric bike motor kit;
4.14″ 16″ 18″ 20″ 24″ 26″ 700c 28″ 36V 750W electric bike motor kit;
5.14″ 16″ 18″ 20″ 24″ 26″ 700c 28″ 48V 1000W electric bike motor kit;

Now we talk about three type classic e bike kits:

1.20″ 36V 750W rear electric bike kit
Model: 601 Kit-1 bike conversion kit
①.20″ 36V 750W rear electric bike motor
②.36V brushless motor controller working with LCD ( New )
③.LCD (Display speed,voltage,mileage…)
④.Twist or thumb throttle with battery guage — optional
⑤.Brake lever
⑥.Three-button ON/OFF Switches
⑦.PAS (Pedal Assist) — optional
Net Weight: 7.86kg — Gross weight: 9.48kg (after packing)
Install: It’s fit for standard 135mm rear frame fork.
Used for: Convert your original bike to electric bike.

2.20″ 48V 1000W rear electric bike kit
Model: 601 Kit-1 bike conversion kit
①.20″ 48V 1000W rear electric bike motor
②.48V brushless motor controller working with LCD ( New )
③.LCD (Display speed,voltage,mileage…)
④.Twist or thumb throttle with battery gauge — optional
⑤.Brake lever
⑥.Three-button ON/OFF Switches
⑦.PAS (Pedal Assist) — optional
Net Weight: 7.98kg — Gross weight: 9.68kg (after packing)
Install: It’s fit for standard 135mm rear frame fork.
Used for: Convert your original bike to electric bike.

3.28″ 36V 250W rear electric bike kit
Model: 701 Kit-1 bike conversion kit
①.28″ 36V 250W rear electric bike motor
②.36V brushless motor controller working with LCD ( New )
③.LCD (Display speed,voltage,mileage…)
④.Twist or thumb throttle with battery gauge — optional
⑤.Brake lever
⑥.There-button ON/OFF Switches
⑦.PAS (Pedal Assist) — optional
Net Weight: 5.72kg — Gross weight: 7.35kg (after packing)
Install: It’s fit for standard 135mm rear frame fork.
Used for: Convert your original bike to electric bike.

want to order electric bike kit

Posted by on November 21, 2022 Comments Off on want to order electric bike kit

Q:
Want to order 1 set of electric bike kit
Detail:
1. brushless hub motor with 36V 500W,no matter if front or rear configuration
2 .suited 16″ wheel (rim+tire)
3. matching controller – capable of reverse direction
some questions:
1. does the motor/controller can effectively brake the wheel or need outer brakes?
2. are the system is ready for adding disk-brake in the future (or even v-brake), if so, do you supply brakes (disk+clipper)

Answer 1:
1.16″ hub motor doesn’t include tyre;
2.Motor control support backward;
3.Brake lever can cut off power and you need outer V-brake or disk brake.
Rear motor can be installed disk brake now,but front motor only use V-brake.

Answer 2:
We suggest you order:16″ 36V 500W rear brushless hub motor kit
The product list about this kit:
1.1 pcs of 16″ 36V 500W or 36V 750W rear hub motor(casted hub+16″× 2 1/4″ tyre)
2.1 pcs of 36V 500W or 36V 750W brushless controller with LCD display speed,mileage…
3.1 pcs of 36V twist throttle with battery gauge
4.1 pcs of brake lever
5.1 pcs of three-button ON/OFF switch that used to control front & rear lights,horn…
6.1 pcs of adapter disk tool that can be mounted on motor and used to install disk
7.1 pcs of φ140mm disk+adapter
The answers for other questions:
1.This LCD controller support reverse;
2.Pull brake lever,it will cut off power,but you still need to install V-brake or disk brake.We suggest disk brake;
3.Our rear hub motor can install disk brake now,but front motor only use V-brake;
4.About motor speed,we can customize as your need;
5.This rear motor is fit for 135mm frame fork.
If have more questions,please free to ask.Thanks.

Answer 3:
This hub motor is more powerful,very nice and casted hub is much better than spoke wheel.Don’t worry spokes will be loose.

Answer 4:
New 36V 500W electric bike motor controller works with LCD.
It’s cool.

The best answer:the second answer

BMX 20 inch 1500W rear hub motor kit

Posted by on October 17, 2022 Comments Off on BMX 20 inch 1500W rear hub motor kit

Q: I will be purchasing the your BMX 1500W rear hub motor kit. Before I go ahead could you please help with the following information.

1. What is the expected delivery time to the UK with the current covid 19 pandemic in the UK in terms courier entry to the UK?

2. What amp battery would I require?

3. Would my Saracen amplitude (steel frame) need re-enforcing to handle the power? ……In your opinion as I understand this is a difficult question to answer. 

A: 1. about 10 days now. (It’s faster than last month)
2. 40amp or 50amp battery
3. if install hub motor on frame very strong,very well..No looseness — No problem (We will make wheel works in the line. Shake is less than 0.5mm from left & right.. shake is less than 1mm from up to down)

Q: Okay well my best option is to purchase a customized battery from you, as you best know the requirements for the kit you sold me…..

1. For clarity the following battery is the product I need to order? – 
52V 12ah lithium battery –
Item ID #LBB521B
£335.75?
& You will customize as per your knowledge of my requirements?

1b. This battery is designed to attach to the Bottle holder screws I believe? As it’s being attached to the Top Bar of the BMX (under the riders knees) laying from back to front of bike,  A BMX does not have these bottle holder screws.
 
Do you sell a bracket that I can use to attach the battery without using Bottle holder screws? 

Or know if possible to add those type of screws to the frame of my BMX?

2. Also my precious kit purchase added around £150 for important fees…..
Will this battery have added import fees? —as not added until final till checkout on site. 

3. Do you sell a Torque arm that is compatible with my BMX hub because I want to further secure the wheel hub to the frame? 

4. Could you offer my any additional discount? on battery and (Torque arm + battery bracket if you can supply) as offering repeat business associated with Hub purchase. 

Thank you for excellent customer service I will be sure to leave an amazing Review on your website. 

20 inch 48v 52v front hub motor diy bike conversion kits question

Posted by on October 16, 2022 Comments Off on 20 inch 48v 52v front hub motor diy bike conversion kits question

Q: Hello! I have been viewing your various 20″ 48v/52v front hub motor diy bike conversion kits and I have a couple of questions.

1) Is there a way to install a disc brake rotor somehow next to the hub motor and still function properly? If so, can you tell me maximum rotor size allowed for these kits?

2) What type of battery would you recommend for a 48v/52v front hub motor kit like this?

Thank you very much for your time and assistance regarding this matter. 

A: 1.) Can install a disk on this 20 inch 1000w or 1500w front hub motor… but the front dropout should be 105mm or 110mm..
    Standard front dropout is about 100mm..

So if the dropout can’t be larger, can’t use disk on front motor.

2.) We recommend 52v 20ah lithium battery.
https://www.leafbike.com/products/lithium-battery/52v-20ah-1500w-electric-bike-battery-triangle-battery-1225.html

Q: Thank you very much for your quick response. Do you know what the maximum disc brake rotor size I would be allowed to install next to motor? Thank you again.

A: We installed max 160mm

Below picture. 
The dia. of two holes for disk is 44m…
If your 180mm 203mm,  aslo 44mm… You can install 180mm, 203mm disk

Q:
I forgot to ask you one last thing before making a final decision on a front hub motor kit. I know you said you are not able to ship the recommended 52v 20ah battery to Japan, but can you recommend a charger to go with this type of battery? Thank you again for all of your help and assistance. 

I just noticed the charger that comes with the 52v 20ah li battery, so I can look for battery/charger here in Japan. But, do you have in stock just the frame bag for holding this type of battery?

26 inch 2000W HUB SNOW BIKE KIT – FOR 190MM DROPOUT

Posted by on May 17, 2022 1 comment

Q: Could you tell me the spec of the most powerful hub motor you sell in the 26 inch fat bike kit that will fit a 190mm rear dropout please?
I am looking to buy the hub motor pre-laced in a rim, can you also advise on what battery to go with it.

A: 190mm dropout..
We can make 26 inch 48V 1000w or 26 inch 48V 1500w hub motor
We recommend 48v or 52v 20ah battery.

Q: Thanks for the reply. Can you quote me for a 1500w direct drive hub wound for torque on a 26″ 80mm rim with cassette and place for rim brake with 190mm dropout please?
Here is the bike I want to install it on

A:We have 26 inch 80mm rim
but don’t have cassette version shaft for 190mm hub motor.
ONLY shaft for freewheel sprocket.

Q:Freewheel will be fine.How much to order please?

A:Click below site.  Check out… check out..
choose your country, will get shipping cost & total price.
Leave message: 190mm 26 inch 80mm
(190mm is very important, or send an email to us after paid, need 190mm shaft,  default: 170mm )
https://www.leafbike.com/products/beach-snow-fat-bike-kit/26-inch-48v-52v-1500w-rear-hub-motor-beach-snow-fat-tire-bike-conversion-kit-1081.html

Q:One more question do you have different windings available? Bike will be climbing lots of hills.

A:Yes, we have different windings available..
Just tell us max speed, we can make windings as your max speed.
We can make fastest: 22 x 3T just for e-motorcycle
Also, can make 16 x 4T – fast
13 x 5T
11 x 6T – popular
9 x 7T
8 x 8T – stronger and not too slow
7 x 9T
6 x 11T — slow
5 x 13T
4 x 16T 
…

Q:Which winding works well for long hill climbing without overheating?

A: 11 x 6T is not too slow,also strong.
Don’t worry motor overheating.
ONLY make sure controller is not overheating.. motor will not overheating..
** Don’t pack controller inside bag.Had better to hold it on the frame directly.It’s easy to cool controller in Summer.
** There pairs of heavy yellow,blue,green phase wires must connected well. Had better to use electrical tape winding.

Q: I saw you have a 2000w hub motor model fat bike wheel how fast will that go?
I think that may be my last question
Sorry also does hub motor have a temp sensor or can you add one please?
Hi saw this new model and had questions:
https://www.leafbike.com/products/beach-snow-fat-bike-kit/26-inch-60v-2000w-rear-hub-motor-beach-snow-fat-tire-bike-conversion-kit-1231.html

Your 26 inch 2000w snow bike kits says it can come in 190mm rear dropout, is that correct?

How many amps is the controller?

Can you supply as a thumb throttle instead of twist throttle?

Does motor come mounted inside the wheel?

What windings can you offer on this 2000w version?

What’s the difference between 36V 500W,36V 750W and 48V 1000W hub motors

Posted by on May 11, 2022 Comments Off on What’s the difference between 36V 500W,36V 750W and 48V 1000W hub motors

Q:What’s the difference between 36V 500W,36V 750W and 48V 1000W hub motors

A:36V 500W,36V 750W and 48V 1000W hub motors are all used for electric bikes,also called electric bike motors.They have the same figuration.These three motors are all made of the same hub,covers,
axis,bearings,hall sensor.So they look the same,but they have different magnet and rotor-winding.

36V 750W and 48V 1000W are the same hub motors,just work at different voltage,has different watts.

But for 36V 500W × 36V 750W（48V 1000W）
The difference between them is that gauge of the coil wires,turns number of the coils and height of magnet.

The height of 36V 500W hub motor’s magenet is 24mm,but 750W hub motor reach 30mm.Picture enclosed.

In market,36V 500W is easy to find it,but difficult to find real 36V 750W hub motors.

In China,36V 500W(48V 600W) motors are very popular and used for electric bikes,these motors seem to ours,but No.The height of our magnet is 6mm more than as usual,reach 750w or 1000w.North America like them,more like high speed motors,we can customize motor speed as customers’ actual need.

Now 26″ 36V 750W bike wheel reaches 20m/h and the speed of 48V 1000W is 27m/h.It’s standard speed.

1500W Leaf Motor with 20″ x 4″ wide “Fat Bike” wheel

Posted by on May 11, 2022 Comments Off on 1500W Leaf Motor with 20″ x 4″ wide “Fat Bike” wheel

Q:Do you sale 1500w or higher hub motor laced into wheel that is 20” diameter by 4” wide for fat tire bike? If so, what are the dropout width options for axle? Can axle dropout width be 150mm wide or even wider? I have a bike frame with 170mm dropout width. I can use torque arms and spacers to fill some of this space, but not too much.

If available please quote price for:
~1500w newest model hub motor with 20” diameter x 4” width wheel (pre-laced service)
~Need motor/wheel laced with 1 cross pattern. Radial lacing is acceptable but not preferred. Black spokes preferred.
~Need 150mm or wider axle dropout width.
~Need turn count which contains HIGHEST AMOUNT COOPER FILL
~Need temp sensor pre-installed in bike motor
~Need single speed freewheel (11 or 12 tooth preferred) pre-installed
~Need SHIPPING to U.S

Also, can you sale with 750W sticker or engrave on bike motor?

A: We can make this 20 * 4 wide Fat Bike wheel.
Please click below site. This is our 20 inch 48V 1000w Fat bike wheel – It’s 20 inch bike conversion kit for fat snow bike.

We also can make 1500w bike motor.
* 1500w with 20 * 4 — Okay. (If your tire is 20 * 4 “, 20 * 3” rim is much better fit for 20 *4” tire. Also,we have 20 *4” rim)
* Please click above site. Wheel looks the same this one.
* At least the dropout 170mm or more
* With temp
* Can use single speed.But min 16 tooth can be installed on this motor. (Can’t use 11 or 12 tooth,only no motor hub use this 11,12)
* Ship to USA is okay.

Q: The tire is “Stingray tire” type. 20″ * 4 1/4″. If you think 3″ wide wheel will fit better ok. 16t freewheel is ok. Rather 1500w if motor will handle more power. Which turn count do you recommend for speed 35mph?

A: We recommend leaf 13 * 5T winding rotor.

1500w rear hub motor with bike rim

Posted by on May 11, 2022 Comments Off on 1500w rear hub motor with bike rim

Q: I’m looking for a powerful direct drive rear hub motor for a 26″ MTB.
I’ve been looking at this motor:
1.Is this the best 26″ rear hub motor you have or do you recommend any other bike motor?
2.Can this hub motor be delivered with a temp sensor installed?
3.What type of gear cassette will it be able to fit with a 135mm dropout? (How many gears)
4.Can this bike motor run higher than 48 Volts? 52 Volt maybe? Or 72 Volt?

A: 1. We have 26 inch 48V 1500W rear hub motor. We recommend this one
2. With temp
3. Max 7 speed and fit for 135mm dropout. Default for screw on sprocket.(If you need to install cassette sprocket, should leave message when you order.
4. We recommend work at 48V battery.(Max 60V)

Q:Can this same rear hub motor also be delivered with a 27.5″ x 50mm tubeless rim?
I will install a 7-speed cassette sprocket, so very good that it supports this.

A: 27.5” and 26 inch are different rim.
If 27.5” rim is smaller than 700c and larger than 26 inch rim?
* If you need to install your 7-speed cassette sprocket. Please Note when you order.

Q: I want to use the newest 1500w hub motor in this bike:
If you press the green + (View all components) on the page you can see that it has 27.5 INCH x 50mm, tubeless ready rims and 142x12mm (Ai offset lacing) rear drop out.

So I’m wondering if you can deliver the hub motor with a rim that’s the same dimensions as the original rim?

A: We have some sample of 27.5 inch rim in stock. Looks the same to the one on your site.
We only ship two 27.5 inch hub motor kits to USA one time two month ago.(ONLY one customer need this 27.5 inch by now)
This 27.5 rim is smaller than 700c and larger than 26 inch.

Q: This sounds good. Thank you for even taking pictures.
How wide is the 27.5″ rim you have? (How many millimeters)

replace hall sensor for 750w hub motor

Posted by on May 11, 2022 Comments Off on replace hall sensor for 750w hub motor

The hall sensor is a transducer that varies its output voltage in response to a magnetic field. Hall sensors are used for proximity switching, positioning, speed detection, and current sensing applications. Three phase bike motor has three hall sensors inside that are used for electric bike widely.

36V 250W brushless geared motor is popular in Europe, but in North America, people like 36V 750W hub motor more. More and more people order and enjoy these two types of DC hub motors that are called classic electric bike motors. Now they have received by most of customers because of good quality.

But when ride this hub motor bike and climb hill for a long time. Sometimes over current or over head will break motor controller’s MOSFET or hall sensor.

Hall sensor is broken. The hub motor can’t work. Unless your controller can drive sensor-less motor. Buy a new motor, cost more.

Replace hall sensor, cost less. Below we first instruct one type of 750w electric bike motor .

If hall sensor is broken, power on battery, you will find battery gauge works, horn works, lights work, everything is good, except when you turn your throttle, the hub motor wheel can’t run.

Step 1:
Retest this hub motor and make sure it does be broken. Do you have voltmeter?
Still connect all wires and power on.

First measure 6-pin hall sensor plug, the voltage as below:
1.The voltage of red and black is about 4.5V;
2.The voltage of yellow and black is about 4.5V or 0V;(use hand to turn hub motor, the voltage will change from 0V-4.5V)
3.The voltage of green and black is about 4.5V or 0V;(use hand to turn hub motor, the voltage will change from 0V-4.5V)
4.The voltage of blue and black is about 0V or 4.5(use hand to turn hub motor, the voltage will change from 4.5V-0V)
If you can get above data it’s no problem with bike conversion kit system. If the voltage of Item 2 (yellow and black wires)can’t change from 0V-4.5V,Please replace this hall has a yellow wire connect.

You should prepare some tools and material:
1.Hexagon wrench (Necessary)
2.Hammer (Necessary)
3.Screwdriver
4.electric iron
5.A-B glue
6.insulated paper, insulated wire
7.scissors
8.New hall sensor

Step 2:
Take off nuts and gasket on axis and use hexagon wrench to loose 16 screws.

Step 3:
Make the electric bike motor stand and cable is bent inside. Left hand hold the hub motor and use hammer to knock the axis.

Step 4:
After some knock, the cover will take off hub.

Step 5:
Use the same way to knock the other axis, the other cover will also take off hub.

Step 6:
When both side covers are off hub, next we should take out the rotor-winding. Make the axis stands on the ground, both hands press hub motor, the rotor-winding will out of hub.

Step 7:
There are three hall sensor in three grooves around the rotor.
Use scissors to remove insulated wire and insulated paper. You will find 9-pin(three hall sensor)connect to PCB on rotor-winding. Each hall has three pin: 1:+ , 2:- ; 3:signal
For example:
Hall A: 1:+ , 2:- ; 3:Yellow wire
Hall B: 1:+ , 2:- ; 3:Blue wire
Hall C: 1:+ , 2:- ; 3:Green wire

Step 8:
Just now had known yellow wire hall sensor was broken. Please use electric iron to remove Hall A and use A-B glue to fix new hall sensor. Use insulated paper, insulated wire to fix PCB. Then re-build this hub motor.

Step 9:
Test as step 1.If can get the data from each hall sensor. Congratulate.

Power on battery, the hub motor wheel works.

I have a 16 hub motor with leaf bike on the rim

Posted by on February 7, 2022 Comments Off on I have a 16 hub motor with leaf bike on the rim

I need to know what voltage is used by the 16 inch hub motor. When it was running on a trike that I no longer have, I think it was a 24v hub motor. 
Can you confirm that it is a 24v hub motor or is there someway to determine what the voltage and wattage is?
If so, would you be able to sell me the appropriate controller for that hub motor?  
MY SECOND MESSAGE slightly expanded:

I need to know what voltage is used by my 16″ hub motor.

Is there someway to determine what the voltage and wattage is? Also, is
that hub motor brushless and gearless?

Given that it is a Leafbike.com/Leafmotor.com hub motor, would you be
able to sell me the appropriate controller for that hub motor?

On your
16 inch 48V / 52V 1000W front scooter motor kit Item ID #LBCK16481000FNL page you show a controller for the 16 inch hub motor. What would be the
cost of the controller – the controller only? I do not want or need the
other parts.

Please tell me how to pay using VISA or PayPal. Kindly send me an invoice for 24V 250W electric bike motor controller, and I will pay with a VISA debit card.

I thought that I ordered a 24v controller for $112.00 which included a faster delivery, BUT when I tried to find the order on “My Account” I could not find it. Your “Live Chat” link would not work. If it had, I would have used it. Please advise regarding my order for the 24v controller. 

Will you kindly tell me what color wires are wired to the thumb drive?
I am using a 24v front hub motor
 
I am so pleased you answered so promptly. However, I am having trouble understanding your description. Would it be possible to send my a drawing or diagram showing all the wires from the controller and where they are going?

All I need is the color of the wires going to the 16″ front hub motor, the battery, and most important, to the thumb throttle.
I am attaching and embedding modified photo from your website. I you could simply label the wire colors and return to me?