Category Archives: bike conversion kit - Page 5

How to choose a hub motor kit for your bike?

Posted by on April 3, 2025 No comments

Hope to convert bike to e-bike. Often don’t know how to choose a hub motor kit ?

Just do it as below,very easy.
1.wheel size, 2.wheel width 3.Motor power 4.front or rear

1. Please check your bike tire size first.There is some words on your tire.
* If 26 * 2.5″ — Should choose 26 inch hub motor kit (2.5 is tire width)
* If 24 * 1.95″ — Should choose 24 inch hub motor kit (1.95 is tire width)
* If 20 * 1.75″ — Should chosse 20 inch hub motor kit (1.75 is tire width)

2. About tire width & rim with.
* The width of rim is 25mm — It’s fit for 1.5″, 1.75″, 1.95″ bike tire
* The width of rim is 32mm — It’s fit for 1.75″, 1.95″, 2.1″, 2.2″, 2.5″ bike tire
* The width of rim is 80mm — It’s fit for 4″ fat snow tire

3. About motor power. Please choose a legal motor for your bike.
* 250w bike motor, speed less than 25kmh that is fit for UK,Germany,France..other European Countries.
* 36V 750W hub motor, speed is less than 20mph that is fit for US

4.Covert front or rear wheel?
* All of our standard front hub motor kits are fit for 100mm dropout.
* All of our standard rear hub motor kits are fit for 135mm dropout.

If possible,please measure your fork first.

Convert front wheel is very easy.
Convert rear wheel is also easy,should install sprocket on rear bike motor. — What kinds of sprocket would you bike use,cassette case sprocket or screw on sprocket? Our rear hub motor Default fit for screw on sprocket. If yours is cassette case sprocket,we also can make this rear hub motor so that fit for cassette case sprocket.

https://www.leafbike.com
This is our new site.There is more product info.

20 inch 48V 52V 500W 750W 1000W front beach snow fat bike hub motor conversion kit

Posted by on April 2, 2025 No comments

20 inch 48V 52V 500W 750W 1000W front beach snow fat bike conversion kit

More info about this 20 inch fat bike conversion kit

>. Engine: Hub Motor
>>. Voltage: 48V / 52V
>>. Power: 500 / 750 / 1000W
>>. Efficiency: 90.5%
>>. Max speed: 33.9 kmh — 20.8 mph Default (Optional other speed:15mph…)
>>. Mechanical brake: Disk or V
>>. Cable location: shaft end, Right
>>. Cable length: 90cm / 35″
>>. Install: spacing of 135mm front fork
>>. Noise: < 60 db >>. Surface: Black painted

>. Driver: brushless controller
>>. MOSFET: 12 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 / 52 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Casing material: aluminium
>>. Maximum Current: 26 A ± 1 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 105 mm L × 72 mm W × 38 mm H

With LCD, More function:
* Cruise – Green switch to control
* Kmh & mph (Optional)
* Max speed ( 0 ~ 100 kmh / 60 mph )
* Speeds ( 0 – 5 ) – “0” is off. “1” is the slowest. “5” is the fastest.
* Battery gauge
* …

This 20 inch snow bike kit can work with a 48V battery.

I want to purchase one of leaf hub motor kits

Posted by on April 2, 2025 No comments

I have done a lot of research and leaf motor and services keep coming up as a fine choice.

My original choice was the 3000 watt hub motor but I have already spent a lot of money on the electric bike and so that will have to come later but from what I have read this one may do just fine.

I currently run a 6T hub motor with a 48V 20A battery pack in a GT bike frame I build a few years ago and really like the way the hub motor runs but would like more speed so I ordered a new Raptor 76r frame and plan on using leaf motor in that setup so my questions are as follows:

The frame has 150mm dropouts in the rear.
From the previous build I already have a premium 48V 20A rated up to 50A output lithium battery pack that I paid 900.00 to have built so I will have to base the new hub motor and brushless controller around this for now.

AT first I was just going to get the 26 inch 1500 watt 4T leaf hub motor kit but then read it was better to have these in the 17” or 19” motor rim for this frame

Do you offer the hub motor with the 150mm axle?

I want this to run at close 40mph / 60kph the 4T should do that but I also would like the upgraded controller over the standard. What is the best motor controller you offer with the 1500 watt motor?

I also noticed you had a 2000 watt motor in the motorcycle section. Is this hub motor available for the bicycle kit and what are the specs on it?

What controller does the 2000 watt motor use?

I am going to buy at least 2 of these. One in the next week +a bare spare and another in a month or so and then probably 2 or 3 after that. I have several friends that want a bike like mine so after I get mine done will be building theirs as well.

At the least I will order the standard 1500 watt hub motor kit in either the 26 or 24 or 20 rim and then I will just pick up a spare bare hub motor and lace the rim myself.

700c 48V 1500W rear hub motor – bike conversion kit

Posted by on April 2, 2025 No comments

Q: 700c 48V 1500W front hub motor – bike conversion kit
Item ID #LBCK700C481500FN

Newest 700c 48V 1500W rear bike motor – conversion kit
Item ID #LBCK700C481500RN
What is the difference between these 2 bike conversion kits?
Can I get them with black spokes?
What is the winding (such as 12T, 8T, 6T, etc)?
Does it come with sprockets (rear cogs, or cassette)? If not, what kind do I order for it?
How much does it cost and how long does it take to ship to California, USA?

A: 1.They are the same motors.
LBCK700C481500FN is fit for 100mm rear dropout. Fit for front fork. Can’t use disk brake. ONLY use V brake on rim.
LBCK700C4815000RN can be installed sprocket on this motor. Fit for 135mm rear dropout. Fit for rear fork. Can install disk brake on rear motor. Also can use V brake on rim.

2. Black spokes ,, okay.. But it takes about 3 days to wait for this black spokes (Please leave message when you order)

3. Default: 5T. But we can make 6T, 8T … (Please leave message when you order)

4. LBCK700C481500FN can’t use sprocket.
LBCK7004815000RN can install sprocket. But Not come it. You can install yours on our hub motor. (Please leave message when you order rear cogs or cassette, then we can make motor as your sprocket. If No message, default: motor with screw thread for cogs

Q: You said:”3. Default: 5T. But we can make 6T, 8T … (Please leave message when you order)”
I have not read about an odd number such as 5T. Is this correct that your default is 5T?
Also, Do you have a right half twist throttle available for this instead of the right full twist?

A: Generally 700c 48V 1500W hub motor,use 5T.
If you leave message: 5T when you order (or send an email to us after paid) – It must 5T.
Yes. We also have other throttle. Please click below site. All throttles are fit for this bike conversion kit LBCK700C481500RN.

Also, leave message: what throttle. We will ship it instead of that full twist.

Motor controller with LCD-003 from Leaf Bike

Posted by on April 2, 2025 No comments

48V 1000W-1500W-2000W, 36V 250W-500W-750W, 24V 250W Motor controllers with LCD-003 from Leaf Bike are used to drive 8-9-10-12-13-14-16-17-18-20-22-24-26-27.5-700C-28-29er inch hub motor bike wheels.

How to set max speed?
If you feel 20 inch or 24 inch,26 inch, 700c, 28 inch, 29 inch hub motor kit is too fast,please set it to be low speed.
* Press “sw/middle button” from LCD more than 2 seconds,then LCD will display.
* Press “up & down button” together more than 2 sconds until 72 is flashing ( 72 is kmh, if you hope works 20mph / 32kmh, press “down” to be 32)
* Press “sw/middle” button one time to save,then 24 is flashing.. (24 is hub motor wheel size. Don’t set)
* Press “sw/middle” button one time to save,then kmh or mph is flashing..
* Press “sw/middle” button one time to save,then press “sw/middle” button more than 2 seconds until be back.

Turn throttle,motor will work max speed as your setting.

—————
There is a “ 5 or 4 or 3 or 2 or 1 or 0” on the Left side of LCD.
* Be “0” – throttle & pedal assist NOT work.
* Be “1” – throttle works (If install pedal assist, pedal about 3 circels,then can drive motor to work)
* Be “2” – throttle works (If install pedal assist, pedal about 2.5 circels,then can drive motor to work)
* Be “3” – throttle works (If install pedal assist, pedal about 2 circels,then can drive motor to work)
* Be “4” – throttle works (If install pedal assist, pedal about 1.5 circels,then can drive motor to work)
* Be “5” – throttle works (If install pedal assist, pedal about 1 circels,then can drive motor to work)

If NOT install that pedal assist,ONLY use throttle to drive motor. But Should be 1 or 2 or 3 or 4 or 5.(Be 0,turn off throttle)

——————————–
How to use three button switch?
1.We cut off that blue wire.It’s for reverse. If reconnect this blue wire.
This yellow button be left / middle,29 inch bike motor kit works forward. Be right side,hub motor works bacwkard / reverse…

2.Green button is used to control cruise, while electric bike motor is running,also over some speed,example: over 1/3 max speed,at this time,press green button one time,then loose throttle,LCD display “C”,motor will works the same speed. Re-press this green button one time or press brake lever or turn throttle to max, electric bike motor will stop.

3.Red button be up,regen on. Be down,regen off. This regen is not strong.Only while braking with a little regen.

Questions regarding your DIY conversion kits

Posted by on April 2, 2025 No comments

Q:I assume your electric hub motor bike conversion kits are speed limited, consider for example your 250W 36V hub motor bike conversion kits. Usually it seems the speed limit it set to something like 25 kmph, or so.

I building a custom bicycle and I am interested in knowing if this speed limit can be configured to be higher. I guess I am thinking this possibly is the case if one can simply enter a lower wheel size when configuring the controller. Could this be there case, or is there may be some other way to do this using your kit?

Also, are you by any chance the same company as leaf bike? And if so, does this answer also apply to the e-bike conversion kits sold under that name, e.g. their 250 W 24 V conversion kits?

A: Yes, our controller has speed limit.
There is max speed display on our leafbike.com site.
We set LCD as wheel size.For 12inch,14inch,16inch,18inch,20inch,24inch,26inch,27inch,27.5inch,700c,28inch and 29 inch..
For example: our site write: max 70kmh ( You can limit max speed under 70kmh,from min 6kmh to max 70kmh)
our site write: max 24kmh ( You can limit max speed under 24kmh,from min 6kmh to max 24kmh)

Q: Thanks for the info. Just so that I understand correctly, let me ask these questions:

For example, considering your DIY e-bike kit 700c hub motor kit front wheel, Item ID #LBCK700C24250FM”. Our your web-site, says that it is speed limited to 36.1 kmh (actually used to say something like 25 kmh, you increased it?). Though this speed seems sufficient (now) I still wonder if I can modify this speed limit in some way. Say, if I configure the controller to a wheel size smaller than 700c. If that it possible I am thinking the max speed would be increased. Is that something that is user configurable, or it is hard coded into the controller that it is for a 700c wheel?

Is it also maybe the case that the controller that one get if one buys, say , this kit also works with some more powerful motors? But maybe it is limited to the operating voltage of 24 V?

Do you have recommendations as to if one should go with, say, a 24V or a 36V system?

Finally, I note on the web-site I list above, seems that you are showing the motor performance table for a 36V motor. Could it be that it should show the performance of the attached motor data for a 24V motor?

Just another question here.

For your 36V 250W front wheel DIY kit, the max speed is listed as 26.3 kmh or 16.4 mph. This seems that it can be a bit limiting for some jurisdictions. Is it maybe the case that you have increased this max speed also to 36.1 kmh as listed for the 24V version? And, also, here, can I configure it for a lower bike speed to make it go faster or is there some other way to increase this speed limit?

By the way, I see the advantage with the 36 V systems. You get more watt-hours in your battery. Seems like better choice for my use case.

24 inch 36V 750W rear hub motor kit

Posted by on April 1, 2025 No comments

24 inch 36V 750W rear hub motor kit

More info about this 24 inch hub motor kit

Main Features:
>. Rim A: 24 inch double wall Alloy (Rim Fit For: 24 × 1.5″ / 1.75″ tire)
>. Spoke: Black 12 gauge / 130mm Length × 36 pcs

>. Rim B: 24 inch double wall Alloy (Rim Fit For: 24 × 1.95″ / 2.0″ ~ 2.5″ tire)
>. Spoke: Black 12 gauge / 135mm Length × 36 pcs

>. Engine: Bldc hub motor
>>. Voltage: 36V
>>. Power: 750W
>>. Efficiency: 87.5%
>>. Max speed: 61.3 kmh – 38 mph
>>. Mechanical brake: Disk or V
>>. Freewheel / Cassette: space for 6 or 7 gears
>>. Cable location: shaft end , LEFT
>>. Cable length:100cm / 40″
>>. Install: spacing of 135mm fork
>>. Noise: < 60 db >>. Surface: Black painted

>. Driver: brushless controller
>>. MOSFET: 12 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 36 Volts
>>. Min. Voltage: DC 30 ± 0.5 V
>>. Rated power: 750 Watts
>>. Casing material: aluminium
>>. Maximum Current: 26 A ± 1 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 171 mm L × 82 mm W × 42 mm H

With LCD, More Function:
* Cruise
* Forward & Backward (Optional)
* Kmh & mph (Optional)
* Set Max speed ( 0 ~ 72 kmh / 45 mph )
* Pedal assist ( 1 – 5 )
* …

This 24 inch bike motor kit can work with a 36V battery.

24 inch 48V 1000W rear hub motor kit

Posted by on April 1, 2025 No comments

24 inch 48V 1000W rear hub motor kit

More info about this 24 inch hub motor kit

Main Features:
>. Rim A: 24 inch double wall Alloy (Rim Fit For: 24 × 1.5″ / 1.75″ tire)
>. Spoke: Black 12 gauge / 130mm Length × 36 pcs

>. Rim B: 24 inch double wall Alloy (Rim Fit For: 24 × 1.95″ / 2.0″ ~ 2.5″ tire)
>. Spoke: Black 12 gauge / 135mm Length × 36 pcs

>. Engine: Bldc hub motor
>>. Voltage: 48V
>>. Power: 1000W
>>. Efficiency: 90.5%
>>. Max speed: 73.2 kmh — 45.4 mph Default (Optional other speed: 35mph or 25mph,15mph…please leave message)
>>. Mechanical brake: Disk or V
>>. Freewheel / Cassette: space for single speed… 6 speed or max 7 speed Default: Fit for Screw on Sprocket (If install Cassette Sprocket,please leave message)
>>. Cable location: shaft end, LEFT
>>. Cable length:100cm / 40″
>>. Install: spacing of 135mm fork
>>. Noise: < 60 db >>. Surface: Black painted

>. Driver: brushless controller
>>. MOSFET: 12 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Rated power: 1000 Watts
>>. Casing material: aluminium
>>. Maximum Current: 26 A ± 1 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 171 mm L × 82 mm W × 42 mm H

With LCD, More Function:
* Cruise
* Forward & Backward (Optional)
* Kmh & mph (Optional)
* Pedal assist ( 0 – 5 )
* Battery gauge
* …

This 24 inch bike motor kit can work with a 48V battery.

hub motor selection and rim width.

Posted by on April 1, 2025 No comments

I am looking to build an e-bike, starting with the Mongoose Dolomite. 5000W is probably too much, I see you offer 1500W hub motor kits, but I did not see any information about 4inch wheels for the fat tire bikes.
Do you have a 26 inch bike motor kit for the 26 inch fat tire bikes, rear drive, 1500W or more?
With a 9 speed cassette is there enough room for the hub motor in a 135mm drop out ?
I see now that my Shimano 9 speed rear cassette should be the same width as a Shimano 7 speed. It is the spacing of each gear that is different. However, if I am to purchase your kit, I would need you to supply the 9 speed freewheel because I assume your hub motors use freewheels and not cassettes. Right now my bike is a cassette.

Unless it is possible to supply this bike motor in the kit instead:

I should be able to mount my cassette to this motor. Can we do that instead?

This is no longer for fat tire bike so please ignore the first email about the fat tire kit.

It is for a regular mountain bike so no need to worry about 3 or 4″ tires. I have regular mountain bike tires, 26 x 2″ right now. Once I do the electric bike conversion kit, I may switch to more narrow road tires like 1.5″ or 1.75″ so the regular double wall mountain bike rim is fine.

So I made a new order with the individual parts and I excluded the brakes because I do not need them. However, it came out to be a little more expensive than selecting the kit but, I would like a double walled 26″ rim added to the hub motor please.

Just wondering what type of connectors come on the motor controller? I am ordering my battery and need to know what kind of connectors it has. Do you have any pictures or description?

28 inch 48V 52V 1500W rear wheel electric hub motor kit

Posted by on April 1, 2025 No comments

28 inch 48V 52V 1500W rear wheel – electric hub motor kit

More info about this 28 inch hub motor kit

Main Features:
>. Rim: 28 inch double wall Alloy (Rim Fit For: 28 × 1 1/2″ tire)
>. Spoke: 12 gauge / 184mm Length × 36 pcs
>. Default: Black spokes
>. Optional: Silver spokes — Please leave message.

>. Engine: Bldc hub motor
>>. Voltage: 48V / 52V
>>. Power: 1500W
>>. Efficiency: 90.5%
>>. Max speed: 75.0 kmh — 46.6 mph Default (Optional other speed: 35mph or 25mph,15mph…please leave message)
>>. Mechanical brake: Disk or V
>>. Sprocket: Freewheel or Cassette
>>. Cable location: shaft end, LEFT
>>. Cable length:100cm / 40″ — Update “3mm phase wires” & “Newest version hub”
>>. Install: spacing of Min 135mm to Max 155mm fork
>>. Noise: < 60 db >>. Surface: Black painted

>. Driver: brushless controller
>>. MOSFET: 18 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 / 52 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Rated power: 1500 Watts
>>. Casing material: aluminium
>>. Maximum Current: 40 A ± 1 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 155 mm L × 72 mm W × 38 mm H

With LCD, More Function:
* Cruise — Green button Control (While motor is working,press green button one time,it will be “CRUISE” – running as the same speed)
* Reverse — Yellow button Control (“Left side & Mid / forward — “Right side / backward”)
* Kmh / mph
* Throttle speeds ( 0 – 5 ) — “0” is off throttle. “1” is the slowest. “5” is the fastest.
* Pedal assist speed ( 0 – 5 ) — “0” is off pedal assist. “1 ~ 5” is the fastest. ONLY one max speed. If hope pedal with 5 kinds of max speeds, please choose the other controller of ours. Please click below link:
https://www.leafbike.com/products/diy-bike-conversion-kit/28-inch-48v-1500w-rear-electric-hub-motor-kit-1465.html
* …

Package Content:
1 x 28 inch 48V 52V 1500W rear hub motor wheel
1 x 48V 52V 1500W 18-MOSFET motor controller
1 x LCD
1 x Twist throttle — Cable length: 1500mm
1 x Brake levers — Cable length: 1500mm
1 x Three button switches ( control cruise .. ) — Cable length: 1500mm
1 x Pedal assist — Cable length: 900mm

Net Weight: 11.7 kg
Package Size: 66cm L x 66cm W x 25cm H
Package Type: Cardboard Box

This 28 inch bike motor kit can handle with a 48V or 52V battery.