Spokes for hub motor bike conversion kit

Q: I ordered a 750W hub motor last month. Now I am going to fix a 20 inch bike motor wheel. Are there standard spokes with nipples I can order on leaf motor online anywhere as order bike conversion kit ? If so- where ( what ’s the standard, exact measurements ) ? If I order from you, what would be the price? A: It's very difficult to replace spokes for hub motor ,there are not standard ones. The length of spoke is lie on the dia.of hub motor and bike rim. Ours are double alloy rims,20" rim: eyelet to eyelet is 360mm. If you order rim and spokes with nipples,just costs $30USD,but the shipment costs $100USD Because the vol. of bike rim is very large. If you don't order bike rim, just order spokes with nipple, it’s very hard to done your bike kit. Why not order bike conversion kit directly ? Another way, you order 20 inch bike motor wheel with rim and hub. But without rotor winding. When you receive this hub wheel, you should disconnect your hub motor, take the rotor winding out of your hub, and put into this 20 inch wheel. This is the best choice. Cost less, easier to solve your issue. Q: I tried to take out a spoke and I was successful. I then tried to put the spoke back into the bike rim and I succeeded again. So I would like to order a set of spokes without the rim. How much would it cost? A: The price of 1 set of spokes is $10USD; The price of shipment by EMS is $50USD (USA or Europe) Total price:$60USD Q: Yes, I'd like to go ahead and purchase it. To double check : - Are nipples included? - Spoke (nipples) are for 20" rim (750W motor)? - How can I pay for it – PayPal ? What's PayPal ID (email)? A: I am not sure you can install them. We will send you a set of spokes (more than 36 pieces with nipples) You could pay on our website directly. www.leafmotor.com Q: I just sent you $60USD directly via PayPal (Transaction ID#28L39717XW247817D,date 25-May-2012)I couldn't do it from your website, so you will only see PayPal payment (may not see any order) A: Could you tell me your correct address and telephone that for shipment. We are going to ship out your products in 24 hours. You will receive below goods: 1.36 pcs spokes with nipples for 20" 750w hub motor bike conversion kit Bike conversion kit, hub motor, bike motor supplier: Leaf Motor Technology Co., Ltd

20 inch hub motor electric bike conversion kit

Q: Do I need to drill holes in my bike？I don't want holes in my bike that bike is expensive now I want the pedal assist will it come with bike conversion kit . A: If you do need our bottle style electric bike battery, you should drill two holes on your bike frame then can install this lithium battery. If you order our bike conversion kit, we can offer you 1 set of pedal assist for free. Q: Can I return it if it doesn't fit? I meant the 20'' rim with the hub motor .The bottle style lithium battery doesn't fit. The 48v 10ah electric bike battery fits. I am going to use zip ties. I downloaded the drawing but dimensions doesn't say inches or mm. Can you please tell me what are they inches or milliliters? A: We aren’t agree with return after we shipped electric bike kit . Because the shipping fee is too expensive, we will update these data with inch. What type of drawing did you download,20 inch rim or hub motor ? We can note more dimensions on this drawing. 1 inch=2.54cm 1cm=10mm 1 gallon=3.785 liters 1 liter=1000 milliliters Q: Also you didn't answer my question about the pas, will it come with the bike kit if I click pedal assist on your website. Or do I need to buy it separate. If I do how much does it cost? I downloaded the drawing the one you send me. I don't understand that because it doesn't say inches or milliliters. When are you guys going to update the hub motor ′s drawing. The rear electric bike kit tire has a coaster brake with a thick silk tire that's what the tire says on it and it has a thick hub on it. I think a 20'' electric rim with hub motor wont fit on it. Can you send me a picture of a 20'' electric rim with hub motor. I am going to print the picture and show it to the bike mechanic where I bought my bike to see if the 20'' front hub motor or the 20'' rear electric bike kit will fit my bike. Everything fits on my bike what I am worried about is the rims with the hub motor. A: If you order bike kit, we can offer you a pas for free. Your rear frame fork can't install our 20" rear hub motor. Because the spacing of your rear frame fork is 120mm (4.7") or 125mm(4.9").If install standard rear hub motor, the spacing must be 135mm(5.3").All dimension on our drawing should be "mm". We have all pictures and drawings about hub motor, electric bike conversion kit. But we only send your drawings. If you do want to convert your bike, you must convert 20 inch front wheel. That is best choice. Q: I am going to order bike conversion kit in the summer. Are you sure the front 20'' rim casting hub motor will fit my fork, how long will the electric bike battery take to be delivered to my house. That's it no more questions if I have another question ill email you thank you it was pleasure talking to you. A: It's no problem. We are sure our 20" front rim casting hub motor that can fit your fork and also only convert 20inch front bike kit. If we ship goods on Monday, Tuesday and EMS express doesn't delay. It takes about three days to deliver. Electric bike battery should take about 7 days to customize and deliver it takes about 3-5 days. Bike conversion kit, hub motor, electric bike kit, bike kit supplier: Leaf Motor Technology Co., Ltd Website: https://www.leafmotor.com

18 inch hub motor bike kit

Q: Are these dimensions inches or centimeters about hub motor ? Can I pedal with this bike kit . What about the torque arm? Does it come in the conversion bike kit . These pictures are from my bike do you think that everything that need to go on the handle bars will fit, including the twist throttle, it looks small my handle bars they are thick. Do you think the 18" bike motor rim will fit on this tire, does the torque arm come with the bike conversion kit. Do you think it will fit on the tire. Do you think the battery will fit on the frame . If I order the LEP-4810 48v 10AH+charger that's the battery blue plastic packing I am going to get. if I buy the bike conversion kit everything I need comes with the bike kit I don’t need to buy something separate if for some reason I doesn't fit can I return it and get a 20'' front hub motor wheel kit how many years of warranty do I get and what does it cover. Sorry for so many questions I just need to find the right bike kit. What are the dimensions of the controller long, wide and height.

A: We have rack. If possible, controller and battery can be put on this rack.

It takes about 10s to install this rack. Your tire is fit for our 18" hub motor. Install front bike motor is easy. It takes about 2 minutes to install. Your handle bars are thick, but can't control speed. We can offer you a pas for free, when pedal, it will work. How to install this pas? Don't worry, everything you buy will be fit for your frame.20" front wheel can't be install on your front fork. Install 18inch wheel is the best choice. Can I get a question, img22mm enclosed? What size of your aluminum tubes,φ22 or φ25? Standard dia. is φ22.It's install our throttle, brake levers..

Q: But I don't like the rack is there a way do put the battery and the controller on to the frame. My friend told me I need carbon fiber stands. How can I tell if the handle bars are 22s or 25s. I measured them but it’s hard to get the actual thickness they are round. I think they are 22s, but still can you help me figure it out. Does the bike kit have a warranty. Do I need the pass how do I install it do I take off the pedal then I put in, what about the torque arm does it come with the kit, that is important, also how fast do I pedal or I just twist the throttle and it goes. What are the dimensions of the rim with the bike motor, I just need the thickness to see if it is ok. Does the battery and the controller heat up do they need to breathe, because I don't like the rack I’m thinking of mounting the battery and the controller with duct tape, I don't want to burn them they are expensive.   

Hub motor, bike kit, bike motor supplier: Leaf Motor Technology Co., Ltd

Website: https://www.leafmotor.com

How to build a geared hub motor for bike kit

These days 250w hub motor wheels are popular with European. Nearly all of hub bike motor are brushless geared. Because there are several gears inside hub. It has more powerful than 250w brushless geared motor. Order 1 set 12" 14" 16" 18" 20" 24" 26" 700c 28" inch hub motor bike kit , convert your common bike to e-bike is so easy. Directly front or rear drive your bike. The important part is an engine -hub motor. How to build this? There are some differences with brushless gearless hub motor. Step 1: winding Calculate motor power, speed RPM and confirm what type of copper wire would you use, wind copper wires by handwork or machine, each notch should be separated by insulating paper so that not shot circuit between the coil. It takes about 1 hour to done it by handwork. And should use rubberized fabric to wrap your fingers. Nipping copper wires will break your fingers. Step 2: fix axis into motor Put axis into rotor winding and use a key to fix axis. Use A-B glue to paste three hall sensors on hub motor rotor, put 9-pin (three pin/each hall) into PCB and use insulated wire to fix it. Put 8-pin cable inside the axis and heavy yellow, blue, green wires to connect the three copper wires(Phase A,B,C) separately. Thin red, black wires are be weld to PCB + and - . Step 3:soak paint After winding should soak paint in order to be insulated. Use brush to put the insulated paint on the winding and make sure be soaked everywhere. It takes about 24 hours. Step 4:press gear into hub Use presser to press steel 90-gear into hub. This hub with one side cover. Step 5:fix three gears Use retainer ring and key to fix three white nylon gears on one steel 21-gear. Step 6:fix magnet Fix magnet inside the hoops. Step 7:install rotor winding into this magnet hoops. Step 8:install there gears on the axis of this rotor winding and put inside of hub with 90-gears. Step 9:install the other cover. Use screw driver to tight screw nuts. Done it. Power on battery and use bldc motor controller to drive this hub motor. If no any strange noise. It's okay.Then according as the size of your bike to fit this geared spoke hub motor to 20" 24" 26" 700c 28" inch bike kit wheel. Hub motor, bike kit, bike motor supplier: Leaf Motor Technology Co., Ltd Website:https://www.leafmotor.com

How to build spokes on hub motor for electric bike ?

DIY electric bike conversion kit and convert your bike is funny. Sometimes we prefer to purchase spoke hub motor , bike rim and spokes. And build spokes on electric bike motor by ourselves.
If we want to convert 26inch front wheel, we should purchase 1 set of front spokes hub motor, 26inch rim and 36pcs of spokes. We can purchase them from leaf bike motor shop online.
Received goods and check them:
1. How many spokes you received. Generally we need 36 pcs spokes to built on hub motor and 12 gauge spokes for electric bike. 13, 14 gauge spokes are too thin, just for common bike.
2. There are 36 eyelet on bike rim and hub motor.
3. Check nipple and the dia. of eyelet on rim, make sure the nipple can put into eyelet.
Calculate the length of spoke :
If you use 205 leaf front hub motor, the eyelet to eyelet of rim is 511mm that is 26inch rim, spokes should be 155mm length.
You need below tools to install spokes on hub motor.
1.iron shelf
2.slotted screwdriver
3.nipple wrench
4.magnet
5.rubber hammer
6.tape measure
7.calipers
Done check, everything is okay. But we found the dia. of nipple is 4.5mm and the rim is also 4.5mm. These eyelets are too small. See pictures.
Get an electric drill and 4.8mm aiguille. Drill 36 pcs of eyelets on bike rim first. Adjust the iron shelf so that the dia. is 100mm. Because standard front fork is 100mm. Then put the rim inside the iron shelf, hold on the hub motor. Make the first spoke wear into hub from left side, the next from right side. One by one from left side to right side. Done install all 36 pcs of spokes, please check them whether correct. See pictures.
If no problem, we should hold spokes on rim by nipples First hold one spoke on left side, then cross to fix another spoke on left side. Next step, cross two spokes on rights side and fix them. Left side, right side, a group of four spokes. See pictures.
Fix all spokes, we should use wrench to tight spokes a little, please don’t be too tight. Use hand to turn wheel, make sure there is no noise from friction of rim and nipple. Use rubber hammer to knock rim when the wheel is running so that the rim will be not jumping up and down. Still to tight spokes a little. See pictures.
Turn wheel, you will find the rim from left side to right side. In order to make the wheel running in the middle. We use calipers to measure and get the data. Then use a magnet to hold a pin. See pictures. If rim to the left, we tight right side spokes or loose left side spokes. See pictures.
It takes about 1 hour to build an wheel.

The Displayer Operating Manual for LCD motor controller

When you received leaf motor 's bike motor kit with the LCD motor controller .Don’t know how to handle it.
For example: 36V LCD motor controller
1. Power switch
Supply battery, press power switch once, the LCD panel will display total mileage, speed , battery capacity and the time (time will be recounted once the power is on).
Voltage ≥ 36V four cells
36V > Voltage ≥ 34.5V two cells
33V > Voltage ≥ 31.5V one cell (flash every 0.5 second)
Voltage < 31.5V no cells (flash every 0.5 second)
2. → Next button
Users may adjust freely between different levels of assistant functions by this button.
3. Set button
3.1 Press set button once, “KM” light is on. At this status, the single mileage will be shown in this area. You may reset it by → button.;
3.2 Press “SET” one time under the status of single mileage, total mileage will be shown. Press it again , it will display single mileage;
3.3 Press “SET” for 5 seconds, the light is on. At this status, you may set with → the size of wheel diameter from 10inch to 30inch in speed display area.
3.4 Fault code
Eight status of fault instruction from 01~05, 07~09 will be displayed in speed area when the light is flashing.
01: Abnormal connection between displayer and controller;
02: Excessive current is detected in controller. If the status remains the same after restarting, it is certain that something is wrong with the controller internal power devices.
03: Motor three-phase power lines are fallen off, or motor is stocked for more than 2 seconds. If the status remains the same after restarting, it is caused by undesirable contact of three-phase lines.
04: Battery is at the status of voltage protection;
05: Hall cables are not connected, or incorrectly connected.
07: It is wrong with the brake lever cable when system is running.
08: The controller internal current will detect if the circuit element is damaged. The status will be displayed if it is abnormal.
09: The battery voltage is measured all the time under the working state. If it is > 47V，the system will enter into high-voltage protection mode, stop working.
Bike motor, motor controller supplier: Leaf Motor Technology Co., Ltd
Website:https://www.leafmotor.com/

How-to-build-a-hub-electric-bike-motor

These days hub electric bike motor wheels are used for e-bikes widely. Nearly all of hub bike motor are brushless gearless. Because of low noise, high efficiency, long life are popular with riders.
Order 1 set 12" 14" 16" 18" 20" 24" 26" 700c 28" inch hub motor kit, convert your common bike to e-bike is so easy. Directly front or rear drive your bike.
The important part is an engine -hub motor. How to build this electric bike motor?

Step 1: winding
Calculate motor power, speed RPM and confirm what type of copper wire would you use. Next is fix a rotor on the steel shelf, wind copper wires by handwork or machine. It takes about 1 hour to done it by handwork. And should use rubberized fabric to wrap your fingers. Nipping copper wires will break your fingers.
Step 2:soak paint
After winding should soak paint in order to be insulated. Use brush to put the insulated paint on the winding and make sure be soaked everywhere. It takes about 24 hours.
Step 3:press axis into rotor
Put axis into rotor winding and use a key to fix axis. Use A-B glue to paste three hall sensors on hub motor rotor, put 9-pin (three pin/each hall) into PCB and use insulated wire to fix it. Put 8-pin cable inside the axis and heavy yellow, blue, green wires to connect the three copper wires(Phase A,B,C) separately. Thin red, black wires are be weld to PCB + and - .
Step 4:paste magnet
Paste magnet inside hub, one N pole, next S pole ..one by one. More magnet, higher torque, more power. The height of our magnet is 30mm,6mm higher than other hub motor. In market,24mm high magnet only build max 500w electric bike motor. So our bike motor works at 36V can reach 750w.
Put the rotor winding inside the magnet hub, be careful hand. It has powerful magnetism.
Step 6:install two covers
Before installing both covers, we should press bearing into cover. Use hexagon wrench to tight screw nuts. When you hear "poop" from electric bike motor. That means install correctly. Done it.
Power on battery and use bldc motor controller to drive this hub motor. If no any strange noise. It's okay.
Hub motor, electric bike motor, bike motor supplier: Leaf Motor Technology Co., Ltd
Website:https://www.leafmotor.com