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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

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)

Bike kit=bike motor+motor contorller?

With gasoline price ↑ day by day,more and more bike fans from Europe and North America would like to convert their bicycle into electric bicycle, because of some reasons,it’s necessary to convert by their selves:
1.Ride a common bicycle for a long distance is very tired,hope have an electric bicycle
2.Buy an electric bicycle,it’s too expensive and single type is not everyone likes;
3.Buy a bike kit,the best choice.Cost less and still can use common bicycle

1 set of bike kit includes: 1 pcs of bike motor with rim,1 set of brushless motor controller,1 set of throttle,1 set of brake leaver,1 set of switch,1 set of battery and front&rear lights,freewheel,disc brake…

Leafmotor has all kind of bike kits are fit for Europe and North America.
Eg:20″ 24″ 26″ 27.5″(650b) 700c 28″ 29″ 27″ rim front & rear wheel with 36V 750W&48V 1000W motor,these 36V kits work with 12-MOSFET motor controller and 48V works with 15-MOSFET brushless controller,have thumb throttle and twist throttle for customers to choose.Front kits are fit for standard 100mm front fork,rear kits are fit for standard 135mm rear frame fork.Speed:20m/h.Rear motor can be install disc brake and front motor should use V-brake.These kits are fit for North America,but now more and more Europe fans like these powerful kits.

If you are in Europe,we still suggget you order 250W motor that is fit for your local law.
Eg:20″ 24″ 26″ 27.5″(650b) 700c 28″ 29″ 27″ rim front & rear wheel with 24V 250W&36V 250W motor,these kits work with 6-MOSFET controller,LCD.This LDC can display speed,battery gauge,milage..Still have thumb throttle and twsit throttle to choose.Both of front and rear motor can be installed disc brake.And both fit for standard fork.Speed:15m/h

Bike kit>bike motor + motor controller..

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:

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.

Electric Bicycles for Sale Electric Folding Model

Electric bikes are a favourite as well as an ecological means of transport, being currently implemented and encouraged to use as much as possible, etc. If you’ve got a few errands to run on the weekend, or a short commute during the week, it’s worth taking a look at electric bicycle for sale. E-bikes are merely a few pence daily to keep going, and are completely rechargeable in a few hours. You just plug up your bike to a charger for the night, and you are able to run it in the morning. Vehicles like this are totally pollution-free, and are an excellent way for you to help save your planet, apart from saving oodles of money being that you aren’t paying a fee to ride public transport. Keep reading to hear more about a fantastic e-bike that we have just heard about, the Bronx electric folding model. Then if ever you need to apply for a loan for your future use, and know more on how you can get the loan you need.

Electric Bicycles for Sale: Major Components of the Bronx Electric Folding Model.

For the price of close to £900.00, an e-bike crammed with tons of top attributes can be yours. It folds efficiently and closely, making it ready to go without much forewarning. This bike is manufactured to apply confirmed technologies to supply consistent and cost-effective functionality. you can purchase it thru cash or credit card. another way is to loan on banks like in much much more easy way. another thing for the e-bike is that, It has a durable steel frame, and a lithium ion rechargeable battery, yet weighs just 20kg, including the battery. The bike motor has a strong 160 watt brushless motor that is completely maintenance free, yet offers the maximum in electrical efficiency.

Electric Bicycles for Sale: Additional Information on the Bronx Model.

Though it is a little bike, the motor offers ample reserve power to transport you to your designated location at the appointed time. Electric bicycles for sale offer 3 operational modes: pedal assisted, full manual, and full electric. To receive the greatest range out of your electric bicycle, always aid the motor by performing some pedalling. In addition, it will add to your camper van, providing you own one. Due to the fact that it’s a folding model, you can take it with you if you’re commuting on the train. The battery is very lightweight at a mere 1.5kg, plus the battery pack is uncomplicated to remove to change or for storing purposes. The bicycle can entirely recharge in as little time as 25 minutes; however, it could be as long as a number of hours, dependent upon how much the power has run down.

Electric Bicycles for Sale: A Few More Fine Points on the Bronx.

The same as the frame, the handlebar folds too. The bike includes a 3 speed hub gear, plus a 45cm wheel diameter. Similar to additional electric bikes in its class, the Bronx holds numerous certifications, like PSE, CE, CSA, and UL. Its top speed is 23kph. If it short circuits, the bike will automatically shut off. Its size is 110 x 60 x 30mm (L x W x H). With an entire charge, this bike features a range of as much as 20km, depending on the issues spoken about previously. The bike is fitted with a patented APT® actuator that provides an exceptionally smooth and powerful ride, regardless of speed.

Figure out how to Get Huge Savings in bike accessories

There are numerous positive aspects to using nitrous oxide in a race auto, but there are some points to be electric bike of as nicely. Though it is non-toxic and relatively stable at room temperature, it can generate a huge amount of energy when combined with a electric bike motor fuel injection technique. When the gas is injected into the intake manifold or appropriate prior to the cylinder in the vehicle, adequate energy can be made to destroy the engine if the mechanical structure is not reinforced for the big burst of electrical power. Although a appropriate temperature must also be maintained to stop excess levels of heat, this program for making more rapidly vehicles for the race track is located to be useful for a far better possibility of winning.

Mahindra 2 wheelers are one particular of the proud makers of the very first funky hunting sports bike. Mahindra mojo is a combination of style, raw electrical power, adrenaline and speed. All a single can say is that mahindra has rocked the Indian motorcycle marketplace with its debutant Mojo.

Mojo is a mixture of raw electrical power, royal looking, cozy seating and muscular appear.

Mahindra Mojo is 1 of the rarest bikes with lots of functions. When compared to other bikes in the segment of 300cc, Mojo truly stands out of the crowd with its globe class features and Italian design. There are ample of functions present in Mojo.

Electric Bike Motor Dismantling Method

Electric bicycle industry, generally refers to the electrical motor assembly, including electrical heart, slow organizations. The following are talking about the electric bike motor means the motor assembly. First, remove the motor

Dismantling the motor before the motor and controller should first unplug the wire, then be sure to record the electrical lead wire color and the color of the correspondence between the controller.

Open the motor cover should be clean as a venue before, in order to prevent debris being sucked inside the magnet on the motor. Wheel well cover and the relative position of the mark. Note: Be sure to loosen the screw on the corner, so the motor casing.

Rotor and stator air gap is called the radial clearance (air gap), usually the motor air gap between the 0.25-0.8mm, when the demolition excluded bike motor complete motor failure, be sure to mark the original cover for assembly This can prevent the sweep chamber after the second assembly of the phenomenon.

Second, the motor gear lubrication

If there is brush and brushless motor have a gear wheel hub motor gear noise began to become larger, or replace the motor in gear, all the gear tooth surface should be painted with grease, grease or 3 general use specified by the manufacturer lubricants.

Third, the motor assembly

In assembling the brush motor, check the flexibility of the spring inside the brush holder, carbon brush and brush holder check whether there is grazing, check the carbon brushes in the brush where it can hold the maximum travel, pay attention to carbon brushes and commutator of the correct positioning of the to avoid carbon brushes or brush card bad grip.

When installing the motor, motor parts should first clean the surface of the impurities, so as not to affect the normal operation of the motor, and a certain firm fixed to the hub body, so as not to install due to the powerful magnet to attract, causing parts hit each other, damage.

AC traction bike hub motor

July 21, will service the Shenzhen Metro Line 5 of the urban rail train, in the CSR Zhuzhou Electric Locomotive Co., Ltd. (hereinafter referred to as “CSR bike motor“) success off the assembly line. According to technical personnel, the Shenzhen subway train is the first time the use of domestic market traction electric bike motor, equipped with a CSR Zhuzhou bike hub motor Co., Ltd. successfully developed independently of the traction bike hub motor products. Reportedly, the bike hub motor than similar foreign products, cost 20% less cost.

Construction cost of about 80 percent of foreign imports

CSR bike hub motor propaganda minister Zhu Jianfei told reporters the South, according to a long, high-strength technology validation test, the company’s traction electric bicycle hub motor of the technical indicators and very similar products imported, the cost is equivalent to the latter 80% follow-up maintenance costs only about 50% of the latter.

As a subway train the “heart”, traction bike hub motor is the core technology elements of the train, the train is pushing the cost of acquisition and maintenance of key components. According to the CSR bike hub motor to the source, every subway train by a total of 16 installed traction bike hub motor calculations, the cost of similar imported products equivalent to 80% of the standard means cost savings for each train at least 30 million, saving maintenance cost of $ 1.6 million. The Shenzhen Metro Line 5 quantities of eight trains, the subway operator side in one fell swoop to save the purchase and maintenance cost of more than 15 million yuan.

“China-made new subway excellent traction bike hub motor design, the technical indicators have reached international level of similar products, and by virtue of small size, light weight, excellent insulation properties, etc., more cost-effective than the international product.” CSR bike hub motor Publicity Minister Zhu Jianfei told reporters.

It is understood that the Shenzhen line 5 using Y Q-190-5-type asynchronous traction bike hub motor developed in November last year. “Our bike hub motor to meet the environmental climatic conditions in Shenzhen and lines, power supply and gauge conditions, reached the world advanced technology level.” Zhu Jianfei said. In addition to the quality of clearance, CSR bike hub motor with similar products, compared with a clear price advantage, is expected to slightly better in terms of competition.

Break the international monopoly of imported brands

Since 1984, successfully developed China’s first YQD -300 electric locomotive with AC traction bike hub motor has CSR bike hub motor in the year to promote technological breakthroughs in recent years, metro bike hub motor to speed up the localization process. And Shenzhen Metro Line 5 electric bicycle hub motor of similar products YQ -190-3 type bike hub motor landing in Beijing in December last year Fangshan Line subway. This year, the CSR Zhuzhou bike hub motor to provide traction electric bicycle hub motor project as well as Shanghai Metro Line 1, Shenyang Metro Line 2, Chongqing and Guangzhou Subway Line 6, 1,2,8 subway line.

“This year also includes the first major breakthrough into the European market, Izmir, Turkey to sign the light rail project, and volume manufacturing to 16, which is representative of the South China car bike hub motor bike hub motor subway traction vehicle with the European debut . “CSR bike hub motor to the reporter concerned. In addition, exports of CSR electric bicycle hub motor vehicles to maintain Singapore’s subway project supporting the development of electric bicycle hub motor, has achieved mass production, breaking the foreign giants for high-end metro and light rail traction system monopoly.

According to reports, South car sales this year expected to reach last year’s 2.5 times. And gradually replaced by a single manufacturer to create a combination of physical transformation and investment.

How to disconnect the bldc hub motor for electric bike?

Spring come,nice days to ride e-bikes.But when you take out of your old e-bike from warehouse and are going to ride it.Suddenly you would find there is strange noise from hub motor .
These days the electric bike motor are brushless gearless and used for electric bike widely.It was made of rotor-winding,magnet,hub,covers,axis,bearings…
If this bike motor has strange noise,generally it’s from rotor-winding rub magnet or the bearing is broken.It’s easy to solve it.The important is to disconnect this electric hub motor.
You should prepare some tools:
1.Hexagon wrench (Necessary)
2.Hammer (Necessary)
3.Screwdriver

Disconnect hub motor Step 1:
Take off nuts and gasket on axis and use hexagon wrench to loose 16 screws.

Step 2:
Make the hub motor stand and cable is bent inside.Left hand hold the hub motor and use hammer to knock the axis.

Step 3:
After some knock,the cover will take off hub.

Step 4:
Use the same way to knock the other axis,the other cover will also take off hub.

Step 5:
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 6:
Check magnet around inside hub,if there is some metallic impurities stick on magnet.Please remove it.If no,but found some friction trace on magnet.Please check around the rotor-winding and remove some glue around the steel.If not,please check the bearing inside the cover.Use a little finger hold inside the bearing,use the other hand to turn cover,faster,better.If you hear some noise.Please replace bearings.

By now,you have solved problem.