Category Archives: brushless motor

26 inch 48V 1500W bike conversion kit info request

Posted by on April 4, 2025 No comments

Q: I was contacting you in hopes of getting some more information about a conversion 26 inch kit that you offer on your leaf bike website. I’m interested in the Item:LBCK26481500FN and Item:LBCK26481500RN, my question is do you offer the 26 inch 48v 1500w bike conversion kit with both the front and rear 26 inch hub with rims instead of having to purchase both kits, basically a one sole complete kit. I was hoping that 48V 20Ah lithium battery would be compatible with the kit as well. Please contact me when available. Thank you for your time and assistance.

A: Yes,can use LBCK26481500FN and LBCK26481500RN on one bike.
Need below parts:
* 1 set of throttle — use to drive two controllers
* 1 set of brake lever — use to drive two controllers
* 1 set of switch — use to control cruise
* 1 set of LCD — — use to drive two controllers
* 2 sets of 48V 1500W brushless controller
* 1 pcs of front 48V 1500W 26 inch hub motor
* 1 pcs of rear 48V 1500W 26 inch hub motor
* 1 set of lithium battery — — use to drive two controllers

Install 48V 1500W rear 26 inch bike motor on rear fork and 26 inch front hub motor wheel on your front fork.Fix controller,install throttle,brake lever,switch,LCD,also these parts all have two plugs for both controllers.Then connect rear 26 inch hub motor wheel to one controller.The other front 26 inch hub motor wheel to the other motor controller.Use 48V 20ah lithium battery to drive these two controllers. Power on and Press “sw” from LCD more than 2 seconds,then LCD will display. Turn throttle,electric bike works.

leaf 20 inch 48V 1500W rear hub motor – bike conversion kit

Posted by on April 3, 2025 No comments

Q: Regarding: Newest 20 inch 48V 1500W rear hub motor – bike conversion kit works on any bike.

What is the max current of the hub motor controller at 48V?
Is the controller programmable to other max current settings?
Does the LCD display show power either in watts, or volts and amps?

A: It’s max 40A
This bike motor controller can set other max speed.
Yes,LCD display power

Q: If I order just the hub motor, can the 1500W rear hub motor have a 10K NTC thermistor installed in it?

A: This 1500w hub motor with 10k themistor (It’s default)

Q: I have a 135mm fork. Can the Shimano Freewheel, 7 Speed, 14-28T be installed on the hub motor and still fit within 135mm?

A: Shimano 7 speed screw-on sporket can be install this hub motor.(TZ-21) – It’s default. Also,fit for 135mm fork.
If other shimano 7 speed cassette sprocket,need to modify hub motor.(We still can make.)

Q: Thanks. Do you sell a Shimano sprocket with an 11 Tooth (11T) that would fit the 1500W rear hub motor?
Q: Can you list the description of each wire in the hall/temperature connector pictured below?
red – ?
black – ?
yellow – ?
white – ?
green – ?
blue – ?

A: Red +
Black –
Yellow – W
White – Temp
Green – V
Blue — U

Q: What parts is includes on this 20 inch 48V 1500W rear bike motor kit?

Package Content:
1 x 20 inch Newest 48V 1500W rear hub motor wheel
1 x 48V 1500W 12-MOSFET motor controller
1 x LCD ( display speed, mileage, battery gauge.. )
1 x Twist throttle — Cable length: 1500mm
1 x Brake levers — Cable length: 1500mm
1 x Three button switches ( control cruise, regen brake, reverse .. ) — Cable length: 1500mm
1 x Pedal assist — Cable length: 1500mm

Net Weight: 11.0 kg / 24.2 lbs
Package Size: 50cm L x 23cm W x

50cm H / 19.7″ L x 8.7″ W x 19.7″ H
Package Type: Cardboard Box

1500watt ebike hub motor question

Posted by on April 1, 2025 No comments

I am searching for electric hub motors that I might be able to use for my device, far different than a bike.
Your 1500 watt hub motor caught my eye, and I am wondering what the outside hub diameter is?If this might work for me, I’d modify it to work for my situation, so the measurement I am looking for is the outside of the drive hub itself (the hub holding the magnets, magnets located on the inside of the hub) I’d eliminate the shield stuff on each side, to help us get the heat shed better.

Do you manufacture these hub motors, or are they purchased? Are they made in the US?

Our equipment is currently powered with 3-Phase AC motors, but I can get more power for less weight with dc motors. Unfortunately, my target rpm is around 140, probably using near 1000 watts at that speed.BUT,if these motors could come close, I’d want to explore what we might do with them.A perfect diameter for us would be less than 6 inch, but this likely isn’t the case.So, getting one or two in hand will let me contemplate things.

I was able to see the charted details for the motor! I note it is max efficiency at 550 rpm, which is too fast for my equipment.I wish to find a direct drive hub motor with decent efficiency at 120 to 200 rpm.As pointed out, my equipment is for a good purpose, and we have potential for 20,000 units per year, and more, reaching that in 2 to 4 years.

Would they consider making a bike motor running at slow speed (adding more poles)? Or is it possible with a step style bike motor? Because these run 24-7, and are built to run for years at a time. I am seeking to have reasonable life expectancy of the motors to be around 8 to 12 years.This is why I am seeking to have direct drive.This bike motor gets installed in a water-tight container, and operates underwater. Cooling will be provided by direct contact to the underwater container.It is very allowable to have a longer length, but if they can hold the 150 mm diameter as a maximum, the length could be almost 310 mm if this would help. I can go up to a weight of 50 kg, if the controller doesn’t weigh very much.

Thank you for following up on this.I would really like to find a bike motor supplier for us so we can go to a direct drive unit and avoid the use of a gearbox.

electric bike motor rear vs front wheel confusion

Posted by on March 31, 2025 No comments

Your E-bike company may just be what I’ve been looking for a while now, though I have a least another set of questions before I attempt to make a purchase to ship over.
I’m still having some troubles deciding on your website exactly the difference between which hub motors are for the front vs the back wheels.
I only want to get the front bike motor wheel set up at the moment, though ultimately the rear hub motor . I’m guessing should have a little more power than the front wheel,
or should it be eventually an equally balanced between the front and the back wheel ? (maybe I should go for a 24 to 36 volt in the front and a 36 to 48 reserved for the back.

You’re right when you point out that I should have the necessary kit set-up to go with the front hub motor, such as a battery which I hope to mount somewhere
in between the bike’s triangle bars, which I will also need a mount bracket for the battery I assume., along with a speed controller and If my existing gears won’t do the trick,
then maybe special gear shifts added to the package. I don’t know if I want get the entire front and back conversion kit at this time, unless it would be a bit cheaper and easier
to buy the front and the back as a whole set with the parts, as I can always leave the back wheel mechanism in my closet for a time and just install the front hub motor.

You say most of your hub motors are fairly rain proof but not exactly mud puddle proof ? Same I guess would go for the Battery cases.

I will check things over again on your site along with the shipping arrangements, but I may still have to call you to confirm my slight back vs front wheel confusion.

Interested In Buy This Hub Motor

Posted by on March 31, 2025 No comments

Q: I am very happy in viewing your electric bike rear direct drive with
26 inch hub motor wheel item ID # LBM26481500RN. My e-bike setup is 60 volts. Do you
manufacture 26×2.0 inch wheel with 60 volts 1500W rear direct drive
hub motors?
Secondly, also can you fit the bike motor in a fully BLACK rim without any
silver around the rim so it can match with my front wheel because I
use hydraulic disc brakes?
If there is anything that you need to ask me that I am missing, please
feel free to ask, that the purchase moves smoothly and correctly.

A: This 26 inch 48V 1500W rear hub motor wheel can work at 60V.Also,we can spoke this hub motor with all black color rim.

Q: Just a few more questions before I buy, because everything needs to be correct.
Can this bike motor fit any size frame bike?
Is it suitable for regenerative braking?
Does it have three phase hall sensors?
Can it fit 8 gear cogs? Which I am using at the moment with my old motor.
Please tell me the total length of the motor axle from end to end
because I’m using a rear rack ?

A: This 26 inch bike motor is fit for 135mm rear dropout. If your motor controller with regenerative braking function, will have it. It’s three phase with three hall sensors. One cable with 9 wires: heavy yellow, heavy blue, heavy green wires are motor phase wires. Thin red +5V, thin black / GND. Thin yellow, blue & green three wires are connected to three hall sensor.
It can fit for max 7 speed for 135mm dropout. If your frame can be larger, about 140mm,install 8 speed on this rear hub motor is no problem.
Total length of this shaft is 210mm.

question about one of your front hub motor for my electric bike

Posted by on March 31, 2025 No comments

Q: I am interested in the 20 inch 48V 1000W hub motor electric bike kit – front wheel but I need to know what the front dropout size this hub motor wheel will fit. I have a small folding bike that has a front dropout of 74mm and need a 20 inch hub motorized wheel that can fit it. Any help you can give me would be great.

A: One of our 20 inch 48v 1000w hub motor (all black color bike motor) is fit for the spacing of 100mm front dropout.
The other 20 inch electric bike motor 48v 1000w (black color with silver motor) is fit for the spacing of 90mm front dropout.

Q: Do you have anything that can fit a 74-80mm dropout? It does not have to be 1000w. I am now looking for a 36v 250w electric hub motor kit?

A: Generally nearly all standard front fork is 100mm dropout. So all of our front electric hub motors are fit for 90-100mm.

Does your front fork is 80mm dropout?
Sometimes,when your wheel is on the bike,if you measure it the dropout may 80mm, because of two side screw nuts are be tighten.If you remove this front wheel from front fork,the dropout may be bigger,actual it also standard 100mm dropout.

Could you take a picture with your bike?

missing thread of hub motor shaft

Posted by on March 31, 2025 No comments

It took a little work since spacing was tight, but I get the hub motor wheel inside of my forks. When I went to put the nuts on the axle, I saw that the bolt on the wired side is cracked. It is missing almost all of its thread which means I cannot but the nut on to hold the wheel in place. Essentially, I cannot use it at all. Please see the picture of the cracked bolt.

I was wondering if you know how I am able to repair this hub motor ‘s shaft or if I can somehow get some help on this? I spent a lot to get it all here and it is a little upsetting that a small chip is preventing me from using it at all. I’m not asking for a whole new electric hub motor wheel to be sent, just hoping I can get this bike conversion kit up and hub motor running. Please advise.

If possible, add some washers,then can solve it.

Do it as below:
Disconnect that white big plug,then can take off screw nut and add some washers into.
*. Look for a pin
*. There are five wires in this white big plug
*. Press each wire’ s pin, then the pin will out of white big plug.

I had thought I got bike conversion kit to work but there just is not enough room to to secure the nut properly. Please let me know what will be the best way to have this resolved. Sorry for the inconvenience on this.

Add washer or torque arm or lock washer.

electric hub motor power cut out and nothing powers up

Posted by on March 31, 2025 No comments

Did you ride it or never ride your electric bike?
1. If never ride,please check if has “-O-“ on the top/middle of LCD screen.. if have, just make brake levers be back or disconnect brake lever’s plug.. then “-O-“ will off, throttle will work.
2. If have ridden 1-2 times,suddenly hub motor Not work.. please smell electric bike motor controller,if has smell from electric bike motor controller.

3. Also, disconnect throttle,brake lever’s plugs from electric motor controller, always press “down” button from LCD, if LCD screen display a “walk person”, aslo hub motor works as walk speed.

This may have helped a little since the hub motor wheel is spinning smooth again, but the unit will still not turn on. Twisting the throttle still does not spin the wheel and the LCD screen still does not power on.

I saw that you left a post on your website about using a volt meter to test the electric bike battery, hub motor, and bike motor controller. I can use mine to test these to help see where the issue might be.

I have not rode it, but the LCD and hub motor only ever turned on once. As soon as I spun the throttle, everything shut off. The LCD does not turn on at all.

I think I sent this video before which shows the wheel slightly spinning, then it just stops. It has not turned.

But right before I did this, the hub motor wheel did spin for a longer time, but the bike motor wheel did not spin smoothly. Then when I tried to show you what was happening in the video, all of the power cut out and nothing powers up.

I used the voltmeter and connected it to the black and red wire from the battery, it says 53V as expected.

Question about 26 inch 36v 750w rear hub motor – bike conversion kit

Posted by on March 31, 2025 No comments

Question about 26 inch 36v 750w rear hub motor bike conversion kit
1. Is the 750 watt hub motor good bike conversion kit for hill climbing? If not what would you recommend?
2. Is the electric bike motor controller current limit set to keep from burning out the hub motor when loaded?
3. I see the hub motor spec sheet is quite old 2013. Is there an up to date one?
4. What is the full old current of the motor at rated N-M load or torque?
5. Any service places for your parts in the US?
6. What size electric bike battery is recommended for your motor and controller? 36v 15ah?

1.We can make hub motor with low speed,will good for hill up.
2.Hub motor controller max 26A,so that electric bike motor max 26A
3,4.Only tell us max speed,we can customize motor…lower speed,stronger torque
5.no service place now
6.recommend 36v 15ah or more ah

Yes, I would like a lower rpm hub motor for hill up if the cost of the bike conversion kit does not change. Maybe 25 mile hour max speed flat ground or about 311 RPM. What would you recommend? What do you have that is close to that?
I need to order shortly to not miss the special on shipping that is coming to an end on Dec 28th.

Yes.We have.
When you order,only leave message: 25mph or about 311 RPM.
Then we can make this hub motor as your message.

Would it be possible to get the hub motor data for this different motor like you have on your other motors? I really like that data as I can see what the electric bike motor is capable of.

I don’t understand this phrase “Mechanical brake: Default Disk or V (If need to install drum brake,please tell us in advance)

I have not heard of drum brakes on a bicycle. I don’t have disk brakes right now but would prefer the motor be capable of adding that even though I have V brakes on the bike right now. So what should I ask for?

I forgot to add that I don’t want a geared 26 inch electric bike motor wheel. the gears are plastic and won’t last long on the hills. I hope that does not cause a problem.

question about 18 inch rear hub motor

Posted by on March 31, 2025 No comments

Regarding your product 18 inch rear dc hub motor for electric scooter Model:HBL-18″R 36V 750W / 48V 1000W
Is says in product details that “This rear hub motor can be mounted disk brake that is fit for standard 135mm frame fork”
My electric scooter motor fork size is measured to be around 177mm, please see attached picture. Can this hub motor be mounted on to my frame, or is the size incorrect?

This kind of 18 inch hub motor isn’t fit for you.
Our other Motorcycle motor or snow fat bike motor are fit for your the spacing of 177mm fork.
Please tell us your tire size.(There is some words on tire)
Then we will check if have hub motor fit for you.

My current electric scooter motor hub wheel fits a tire size of 18″ by 2.5″ (or 3″)
My battery is currently 48v and the bike motor controller outputs about 22-23 amps max. I’m trying to find a 1000 watt hub motor that can potentially reach a speed of 42-50 km/h if possible.

I am interested in buying your electric hub motor.
Here is a picture below of my current disk brakes- will these be able to fit on your hub motor?
Also what would the cost be for just the hub motor? I don’t need all the extra accessories or controller included with the conversion kit.