This series is fascinating. I'm a mechanical engineering student, so I know a bit of stuff, but I'm definitely outside my realm with electricity, lol! Luckily, I am required to take a couple electrical classes, so I'll be sure to annoying the heck out of my professor with questions as much as possible :)
If you can understand the logic behind mechanical systems, electrical systems will come naturally. They're really almost the same, well they actually are since they both just operate on a principled understanding of physics. You'll get it no time.
The motor I used on the motorcycle was a Permanent Magnet DC Motor. Those work very well for regenerative braking. However, the controller I used does not support that as a feature. There are some other motor controllers that do.
Ran across this video in my research for trying to design a Spyder type autocycle. The motor I would have in the front to provide FWD as I live in a northern state that does get a fair amount of snow so I want it to pull me along other than trying to push me through the stuff. Great information.
Cool Vid,i subscribed . i like brushed motors and projects, wich doesnt cost so much. life got more importend things than to put all my money and time into new stuff.
I'd like to build a motorcycle using a golf cart motor 4 12v batteries. Is there a way I can also wire it so it will recharge the batteries if i have a back up gas engine?
You would basically just be running a generator to top off the batteries. Take a look at my DIY Hybrid car project for some more ideas. ruclips.net/video/xXVi-g4jWqI/видео.html Search for "Revolt DIY Hybrid" on this channel for more.
Nice series, thanks for putting this together. Extremely helpful. I notice that you didn't discuss brushless motors...curious if there's a reason for or against using them?
No. There is a wide number of styles of motors out there. In this series, we were just sticking with the basics, and talking about motors similar to ones I used in this project. There are other videos out there that do a good job of describing brushless DC motors. I have a few videos showing how 3 phase AC motors work demonstrating a Nissan Leaf motor.
I was having an idea I would like you to consider. If you built a Sterling engine, how big would it need to be to produce enough electricity to charge the batteries. I know Trains use a diesel generator and electric motor setup. I was thinking of trying to use the Sterling engine for that sort of application
I m very much confused which motor should be used for my gasoline bike. I need 60-80km\hr speed. Motor should be waterproof and small size.high efficiency and chief . I see some motor in aliexpress and bit confuse to order. Please guide me. I will send u link if u provide me email address. I calculate torque rpm wheel rpm gear ratio but could not decide that motor give such speed or not. Please guide me. Mk from nepal.
Hi my name is Alice and I would really like to build my own motorcycle, but I don't know much about it, thank you for helping me out but can I ask you one more question? I want my own to be fast max speed: around 120kmh what motor should I use? I would also prefer it if it was brushless...
Hi Benjamin, Thanks for the great videos. My question is how is you electric motor affected by rain and some suggestions on how to weather proof for wet conditions. Thanks
Arlin Sansome this video is from a project I originally built in 2007. Certainly technology has progressed since then (especially in the realm of batteries.) Brushless motors and controllers are now cheaper and more available than before, but there are still plenty of great conversion projects which used brushed motors. A later project I did was upgrading the batteries on a Vectrix, which used a brushless hub motor. If you have a nice conversion project which showcases a brushless motor, and teaches people about them, please share it and show it off!
Quite right, I can't see, waiting on a petrol station forecourt while your mate fills up his ICE powered bike, as safe with a brushed motor or a paint shop or any place with a combustible atmosphere.
Yes, thats just what I was thinking. Why would you put a motor that will break down when the brushes wear out. Use PMG but have the magnets on the rotor side and control the power, torque and RPM with a VSD. Also if you roll down a hill and the VSD is disconnected, you can re capture some power that the rotor is putting through the stator windings.
For AC motors for vehicles, do a search for electric vehicle components suppliers. EV West, for example, sells AC motors and drives, as do many other online suppliers. evwest.com/catalog/ Keep in mind that some of those motors cost more than I paid for this entire project.
@@BenjaminNelsonX thanks for the link. Im just having a hard time finding them. The link you just sent is literally just the second link I have ever found to where I can buy the motors from. How can I find more places to buy them from? I want to know all my choices before I lay money down
Use web search. Also, other people who have done conversions can be a good resource. Post questions to forums such as www.diyelectriccar.com and www.elmoto.net
Thanks for a great video Benjamin, I was weighing the possibility in a hub motor to convert a Honda 350 about the size of your 440 Kawasaki. This would also leave more room for batteries. What are your thoughts on the hub motors?
Hub motors tend to cost more, there's a smaller selection of motors available, and you can NOT change gearing. They DO give you more room for batteries, since the motor doesn't have to be in the center of the cycle. Take a look around, if you find a hub motor that suits your project, go for it.
Ok it’s June 2021 where can I buy a strong electric motor and battery to put in a Dirtbike frame. I want the strongest and most power I can buy that will fit in a full size dirtbike frame
The two motors look the same because they were both designed by Cedric Lynch - they also have 8 outer mounting holes - the motors have different builds depending on use from i think 90 summit to 140 poles - both motors can exceed 90% efficiency - The Lemco is built in UK and the Agni in India
Hi Benjamin, thank you for all great videos. May be you can give me a suggestion. I am choosing the DC motor and battery pack to make a motorcycle. I got the motor data sheet showing the currents, RPMs and torques in 'open load' conditions. I would like to know what will be the current for the system '75 kg passenger + 75 kg motorcycle/ batteries' running steadily at 70 km/h in a no steep road. I guess I need to estimate the load torque in the motor shaft in the specified conditions so I can calculate the actual current. Do you have any suggestion for estimating the load torque? thank you
Do an online search for HORSEPOWER CALCULATOR. One horsepower is approximately 746 watts. Current (amps) times Potential (Volts) is Power (Watts). Knowing that and using a horsepower calculator should be able to answer most of your questions.
Probably not. A motor from a household appliance, like a washing machine, will generally be less than a maximum of 15A @ 120V here in the United States. That's 1800 watts, or about 2.4 horsepower. Besides the lack of power, you would also need to invert the Direct Current (DC) from batteries to Alternating Current (AC) to power that style of motor.
Hi Mr. Benjamin. I am a first time or prospective electric bike builder. I am interested in doing the conversion using the MARS motor. But I have a question. Would I be correct in using the original gear set? I would like for my bike to have and use the normal gear lever to select different drive speeds over different terrains. It is a DR650. Kindly help me out
Motorcycles don't have much space in the frame. Having a traditional transmission takes up space. On top of that most motorcycle engines and transmissions are mated in a way that makes it difficult to use the one without the other. Most electric motorcycles use single-speed gearing, just by selecting appropriate sprockets connected by the chain to get the power and speed combination you are looking for. Electric motors have high torque at low speeds, so you don't need a transmission to get torque that the low gears provide. Make sure to use a high enough system voltage for the maximum top speed you are looking for. My cycle only used a 48V system, and was designed for about a 45 MPH top speed. I usually suggest that people want at least a 72V system for their DIY electric motorcycles.
@@BenjaminNelsonX Thanks, Nelson. I am hoping to get an average of 80 Kph (I do not know how much mph that translates to), but I think the 72V system will do. As for the space< I think the DR650 has plenty of room in the frame after I remove the cylinder, cylinder head and cylinder-head cover (approx. 250mm height x 300mm length [front-to-back] x as wide as I can go from left to right).
Yes, but keep in mind that on a motorcycle, the engine and transmission are often built together as a single unit, and it's difficult to use one without the other. On this project, I simply chose gearing which was appropriate for my motor power and top speed desired, and then used a fixed single-speed gear by using custom front and rear sprockets.
@@BenjaminNelsonX I plan to build a Harley Chopper in electric. The transmission is separate and is joined to the motor via a plate and connected via a chain or a belt drive
@@ThomasShue Then that should work fine. However, the transmission will also take up more space in the bike than single-speed gearing would. That's space that might be better taken up by batteries. You might find that even with a transmission that you end up leaving it in a single gear anyways. Take a look at motorcycles on the EVAlbum to get more ideas so you can build your project in a way that's right for you! www.evalbum.com/type/MTCY
@@BenjaminNelsonX thanks, I have lots of room for battery's, I plan to build my own custom battery from small cells that look like fat AA batteries (with the proper chemistry of course) and this cell will be made to fit in where the long stretched gas tank would of been. This bike will be a bar hopper style. I hope it's range to be 75 to 100 miles. I am looking for about 150 to 200 rear wheel horsepower. It may be ambitious, but this is what I want. I used to own a motorcycle manufacturing businesses about 15 years ago. I have a complete roller and transmission. I just need to figure the motor and speed controller as well as my electronics as I think I want to tackle regenerative braking. I know that too may be ambitious, but why waste all that inertia when you are off the throttle. I want to be able to engage and disengage the inertial braking. I plan to use everything that a normal Harley would use except the motor and electronics.
@@ThomasShue Sounds like you know what you are doing on the mechanical side. Try making some new friends locally who have a knowledge of motors, controllers, and batteries. "Makerspaces" and the like are great places to meet new people and share skills! Good luck on you project!
Motors like the ones I show in the video are typically used for mobile DC powered machines. Anything from floor-buffers to go-karts. I've even seen small cars running with this type of motor.
So what if i modified the original gear box from the original bike to fit on the motor, would this increase top speed (other than added control by using the lower gears)
If your transmission includes a high enough top gear, to make the output to the rear wheel faster than the motor can spin, then you COULD get a higher top speed, but at the expense of higher current draw. Typically, you are better off saving the space, weight, and physical complexity by NOT having a transmission. The extra space can be used for a higher voltage battery, for a better top speed. A transmission wouldn't give you any better control at low speeds, as a modern electronic motor controller provides full torque and excellent speed control at even extremely low RPM. Few electric motorcycles have transmissions.
These motors are NOT salvaged or removed from some other piece of equipment. They are motors manufactured for use in go-karts, motorcycles, etc. and are available for sale to the general public, typically through internet/mail-order distributors. Do a web search for "Electric Vehicle components" and you will find plenty of suppliers.
There's nothing strange about that - it's a relatively common DC motor setup. Whether or not a motor has permanent magnets has nothing to do with if it has brushes or not. You may just be associating permanent magnets with a permanent magnet AC motor.
The current variations of this motor are produced by Motenergy: www.motenergy.com/brdcmo.html Here's a link to some general EV Parts Suppliers as well: 300mpg.org/projects/electro-metro/ev-parts-suppliers-links/
I don’t understand the formula you gave for figuring out what your top speed will be. You said measure the circumference of your rear tire and the gear ratio but then in the writing all you say is motor RPMs divided by just the gear ratio so not sure what your saying. Is the gear ratio between the front and back sprocket or back sprocket and back tire? Or what??
Speed of the motor, divided by the gear reduction, times the circumference of the tire. If in doubt, use an online gearing/speed calculator. www.gearingcommander.com
Motors like these are available from a number of retailers. Here's links to a few places you might be interested in. 300mpg.org/projects/electro-metro/ev-parts-suppliers-links/
hi. I have a Old motorcycle in my garage. But i dont have any Documents for engine or the chassis. Can i convert it into a electric motorcycle ? Is it legal ? Advance thanks for the answer.
Yes, of course you can use an AC motor on a motorcycle. The cost has come down and the availability of AC motors (and brushless DC motors) has increased since this video was originally produced.
It has been said, I don't want a pickle, I just want to build an electric motor sickle. Thanks for the info demo. I have a saying, LOW POWER IS BETTER THAN NO POWER. Ever car has a battery in it and the most available power supply.
PMDC motors are nice and compact, and easy to control. An AC induction motor, while powerful, will also be larger, more expensive, and more complicated to control. Motors with permanent magnets also tend to be more efficient than motors where electric current creates both magnetic fields.
The fork truck motor shown looks to be only designed to run in one direction. It's not worth the risk in trying to run it backwards. An interesting idea nonetheless.
Tea Time with Dr. Breen (find on youtube) made most likely by a teenager using nothing but ragdoll and explosion and a sense of humor. over 2 million views
in 2008 maybe, but not in 2018....the prices of e-bikes are coming down, new entries into the market all the time. I bought a 15Hp electric motor, controller and all the parts needed to build an electric dirt bike based on crf230 frame.....never found the time to get it finished - had the motor mounted, sprockets, etc, but stalled on where to put all 6 batteries for a 72volt system. after several years of not getting any progress, I realized the bike would be butt ugly even if I finished it. I'm no master fabricator, so i dont have the skills to make it work slick, smooth, and look good. A good question to ask yourself before you go to all the trouble I did: " do i really want to commit hundreds of hours in this or do i really just want to own and ride an electric motorcycle?" If the latter then i recommend buy one of the already great production bikes available now on the market or if budget is tight just wait a few more years - the prices will come down.
Yes! There are now lots of great electric motorcycles out there! The ZERO brand-name has been one of the most popular, and they make a range of models. If you have plenty of money, and just want to buy an EV motorcycle, I would definitely recommend Zeros. I built my own electric motorcycle for about $2,000 and LOVED every minute of both BUILDING it and RIDING it. Zeros cost considerably more than that... I also like the idea that if something breaks, I know how to fix it. There's always been the debate of "Buy vs Build" for all types of projects. As more things are commercially made, it's easier to simply buy, but some people still love the learning and the challenge of working on the project themselves. You can also apply all these same ideas to a mini-bike, a trike, a high-power go-kart, etc - vehicles which you might NOT be able to simply purchase.
Hi Donald, If watching this video feels like building your own electric motorcycle is too complicated or challenging for you, then GOOD! I've found that for any project, it's always best to know what you are getting in to. If something sounds like it is outside your technical skill level, that's fine. At least you know that AHEAD of time, rather than put a lot of money into a project you can't complete. Electric vehicles really are fun though. Maybe try something a little simpler like an electric bicycle or go-kart. There are all sorts of projects that are fun AND let you learn more. Good luck with whatever you are working on next.
put a generator right after the battery and motor and then put the motor on the lowest setting then connect the generator by a belt and then use a transformer to power another motor so that you increase the battery life from 10 to 100 times. it is the secret that is hidden by big oil for over a hundred years. wanna hear a joke use a 6 volt 2 amp accelerometer. it is basically a conveyor motor with a speed dial but to increase the value put on a big wheel on the accelerometer and take the wheel of the generator and just use a tiny little rod. then adjust for maximum output. i bet tesla is using a transformer afterwards but properly made generators will spin up off the gas pedal and the accelerometer.
Stephen Givens a hybrid system is a bit much to fit in a motorcycle frame. I did build a plug-in hybrid from a Geo Metro. It worked pretty well. Do a search for “Electro-Metro” on my channel.
Stephen Givens The Geo Metro used an LP (propane) generator to power a charger which would feed power to the battery. The generator would run continuously to always add energy to the battery whether the car was accelerating, cruising, or at a stop. It was sort of a low-tech Chevy Volt.
the six volt 2 amps version is a parts conveyor motor with a speed dial on it. and my friends out there say it will work but for the largest versions it takes up to 120 and 20 amps. it all depends on bearing tension, weight and is literally called a Near Zero Point Energy Step Up System. N.Z.P.E.S.U.S. it is what i thought up also.
Hi Dude! Part of the fun of building your own electric motorcycle is that you can design it any way you want! Mine has NO transmission, no shifting, and goes from 0-45 in a snap, but I live in a city, so 90% of all riding is in a 25MPH zone. I geared it for great acceleration and fun, but didn't need a high top speed. With a simple front sprocket swap, I could easily do freeway speed and faster.
A Dude its 45mph in that configuration, and thats gotta be at least a 60 tooth rear sprocket, if he dropped it down to a 44 it would double the speed easy
Mark Williams so much less fun and so many things you don’t get to learn in the process. I get that it isn’t for everyone but just buying it because it’s too hard isn’t the way I want to go.
Best guide on how to do this so far. THanks! Love the take 2
I found your project when I was first rebuilding my kz440. That was a few years ago but you have me thinking about a future build now!
Good info in this video. Hopefully the next one has resources for where to source the motors.
Here's some links for you.
300mpg.org/projects/evcycle/ev-cycle-parts-suppliers/
Thank you very much for sharing your knowledge! Very appreciated!
This series is fascinating. I'm a mechanical engineering student, so I know a bit of stuff, but I'm definitely outside my realm with electricity, lol!
Luckily, I am required to take a couple electrical classes, so I'll be sure to annoying the heck out of my professor with questions as much as possible :)
Same
If you can understand the logic behind mechanical systems, electrical systems will come naturally. They're really almost the same, well they actually are since they both just operate on a principled understanding of physics. You'll get it no time.
take two on that.... Great Vid
lol i love that part i was just about to point it out
Can you do Regenerative Braking on these motors/controller?
The motor I used on the motorcycle was a Permanent Magnet DC Motor. Those work very well for regenerative braking. However, the controller I used does not support that as a feature. There are some other motor controllers that do.
Ran across this video in my research for trying to design a Spyder type autocycle. The motor I would have in the front to provide FWD as I live in a northern state that does get a fair amount of snow so I want it to pull me along other than trying to push me through the stuff. Great information.
Congratulations.....Thanks may friends... São Paulo - Capital - Brasil
Cool Vid,i subscribed . i like brushed motors and projects, wich doesnt cost so much. life got more importend things than to put all my money and time into new stuff.
Yes. I've akways loved diy over buying finished projects. It's always more assuring, and definitely more gratifying, always worth the trouble
I'd like to build a motorcycle using a golf cart motor 4 12v batteries. Is there a way I can also wire it so it will recharge the batteries if i have a back up gas engine?
You would basically just be running a generator to top off the batteries. Take a look at my DIY Hybrid car project for some more ideas.
ruclips.net/video/xXVi-g4jWqI/видео.html
Search for "Revolt DIY Hybrid" on this channel for more.
@@BenjaminNelsonX y did you choose the yellow top over a blue top deep cycle
Fantastic video. Thank you.
Nice series, thanks for putting this together. Extremely helpful. I notice that you didn't discuss brushless motors...curious if there's a reason for or against using them?
No. There is a wide number of styles of motors out there. In this series, we were just sticking with the basics, and talking about motors similar to ones I used in this project. There are other videos out there that do a good job of describing brushless DC motors. I have a few videos showing how 3 phase AC motors work demonstrating a Nissan Leaf motor.
I was having an idea I would like you to consider. If you built a Sterling engine, how big would it need to be to produce enough electricity to charge the batteries. I know Trains use a diesel generator and electric motor setup. I was thinking of trying to use the Sterling engine for that sort of application
The series motor is a giant Shovelhead Generator.
Mind blown...⚡💨👍
I m very much confused which motor should be used for my gasoline bike. I need 60-80km\hr speed. Motor should be waterproof and small size.high efficiency and chief . I see some motor in aliexpress and bit confuse to order. Please guide me. I will send u link if u provide me email address. I calculate torque rpm wheel rpm gear ratio but could not decide that motor give such speed or not. Please guide me. Mk from nepal.
Hi my name is Alice and I would really like to build my own motorcycle, but I don't know much about it, thank you for helping me out but can I ask you one more question? I want my own to be fast max speed: around 120kmh what motor should I use? I would also prefer it if it was brushless...
Great videos, keep up the good work!
Hi Benjamin,
Thanks for the great videos. My question is how is you electric motor affected by rain and some suggestions on how to weather proof for wet conditions. Thanks
Never had any issues with the motor and rain/wetness/weather. Zero.
Will this motors over heat? What about cooling?
To anyone watching this. Save yourselves all the headache of failed motors and use brushless motors. This is 2018 we don't need brushes anymore.
Arlin Sansome this video is from a project I originally built in 2007. Certainly technology has progressed since then (especially in the realm of batteries.) Brushless motors and controllers are now cheaper and more available than before, but there are still plenty of great conversion projects which used brushed motors. A later project I did was upgrading the batteries on a Vectrix, which used a brushless hub motor.
If you have a nice conversion project which showcases a brushless motor, and teaches people about them, please share it and show it off!
Thanks I have been putting them on my Channel. Currently I have the world record for fastest/quickest Electric FWD 1/4 mile.
Quite right, I can't see, waiting on a petrol station forecourt while your mate fills up his ICE powered bike, as safe with a brushed motor or a paint shop or any place with a combustible atmosphere.
Arlin Sansome
Yes, thats just what I was thinking. Why would you put a motor that will break down when the brushes wear out. Use PMG but have the magnets on the rotor side and control the power, torque and RPM with a VSD. Also if you roll down a hill and the VSD is disconnected, you can re capture some power that the rotor is putting through the stator windings.
What is the hp&rpm and can i use it fo an electric plane project
where can I actually buy good brushless motors? it's.... obnoxiously hard to find them, especially the controllers...
For AC motors for vehicles, do a search for electric vehicle components suppliers. EV West, for example, sells AC motors and drives, as do many other online suppliers. evwest.com/catalog/
Keep in mind that some of those motors cost more than I paid for this entire project.
@@BenjaminNelsonX what about bldc motors for motorbikes?
What about them? They are available. Here's an example of one distributor.
www.emf-power.com/product-category/motors/
@@BenjaminNelsonX thanks for the link.
Im just having a hard time finding them. The link you just sent is literally just the second link I have ever found to where I can buy the motors from.
How can I find more places to buy them from? I want to know all my choices before I lay money down
Use web search. Also, other people who have done conversions can be a good resource. Post questions to forums such as www.diyelectriccar.com and www.elmoto.net
Thanks for a great video Benjamin, I was weighing the possibility in a hub motor to convert a Honda 350 about the size of your 440 Kawasaki. This would also leave more room for batteries. What are your thoughts on the hub motors?
Hub motors tend to cost more, there's a smaller selection of motors available, and you can NOT change gearing. They DO give you more room for batteries, since the motor doesn't have to be in the center of the cycle. Take a look around, if you find a hub motor that suits your project, go for it.
I love your t shirt.
Thanks. Made it myself. Original design and screen print.
Which better is bldc motor,brushed motor,reluctance motor or 3 phase induction motor for electric motorcycle ? Thank you for your answer.
BLDC
Ok it’s June 2021 where can I buy a strong electric motor and battery to put in a Dirtbike frame. I want the strongest and most power I can buy that will fit in a full size dirtbike frame
The two motors look the same because they were both designed by Cedric Lynch - they also have 8 outer mounting holes - the motors have different builds depending on use from i think 90 summit to 140 poles - both motors can exceed 90% efficiency - The Lemco is built in UK and the Agni in India
How does a person find one of these motors for a go-kart build can anybody please answer that
300mpg.org/projects/evcycle/ev-cycle-parts-suppliers/
Hi Benjamin, thank you for all great videos. May be you can give me a suggestion. I am choosing the DC motor and battery pack
to make a motorcycle. I got the motor data sheet showing the currents, RPMs and torques in 'open load' conditions.
I would like to know what will be the current for the system '75 kg passenger + 75 kg motorcycle/ batteries' running steadily
at 70 km/h in a no steep road. I guess I need to estimate the load torque in the motor shaft in the specified conditions
so I can calculate the actual current. Do you have any suggestion for estimating the load torque? thank you
Do an online search for HORSEPOWER CALCULATOR. One horsepower is approximately 746 watts. Current (amps) times Potential (Volts) is Power (Watts). Knowing that and using a horsepower calculator should be able to answer most of your questions.
It is helpfull to show the equivalent circuits while explaining, at least for the series motor
Will a motor from wash?ing machine be enough for my build
Probably not.
A motor from a household appliance, like a washing machine, will generally be less than a maximum of 15A @ 120V here in the United States. That's 1800 watts, or about 2.4 horsepower. Besides the lack of power, you would also need to invert the Direct Current (DC) from batteries to Alternating Current (AC) to power that style of motor.
Hi, i want to know which motor is good in a motorcycle. Hub motor or mid drive. And why?
Hi Mr. Benjamin. I am a first time or prospective electric bike builder. I am interested in doing the conversion using the MARS motor. But I have a question. Would I be correct in using the original gear set? I would like for my bike to have and use the normal gear lever to select different drive speeds over different terrains. It is a DR650. Kindly help me out
Motorcycles don't have much space in the frame. Having a traditional transmission takes up space. On top of that most motorcycle engines and transmissions are mated in a way that makes it difficult to use the one without the other.
Most electric motorcycles use single-speed gearing, just by selecting appropriate sprockets connected by the chain to get the power and speed combination you are looking for.
Electric motors have high torque at low speeds, so you don't need a transmission to get torque that the low gears provide. Make sure to use a high enough system voltage for the maximum top speed you are looking for.
My cycle only used a 48V system, and was designed for about a 45 MPH top speed. I usually suggest that people want at least a 72V system for their DIY electric motorcycles.
@@BenjaminNelsonX Thanks, Nelson. I am hoping to get an average of 80 Kph (I do not know how much mph that translates to), but I think the 72V system will do. As for the space< I think the DR650 has plenty of room in the frame after I remove the cylinder, cylinder head and cylinder-head cover (approx. 250mm height x 300mm length [front-to-back] x as wide as I can go from left to right).
Can you use an electric motor with a Transmission?
Yes, but keep in mind that on a motorcycle, the engine and transmission are often built together as a single unit, and it's difficult to use one without the other.
On this project, I simply chose gearing which was appropriate for my motor power and top speed desired, and then used a fixed single-speed gear by using custom front and rear sprockets.
@@BenjaminNelsonX I plan to build a Harley Chopper in electric. The transmission is separate and is joined to the motor via a plate and connected via a chain or a belt drive
@@ThomasShue Then that should work fine. However, the transmission will also take up more space in the bike than single-speed gearing would. That's space that might be better taken up by batteries. You might find that even with a transmission that you end up leaving it in a single gear anyways. Take a look at motorcycles on the EVAlbum to get more ideas so you can build your project in a way that's right for you!
www.evalbum.com/type/MTCY
@@BenjaminNelsonX thanks, I have lots of room for battery's, I plan to build my own custom battery from small cells that look like fat AA batteries (with the proper chemistry of course) and this cell will be made to fit in where the long stretched gas tank would of been. This bike will be a bar hopper style. I hope it's range to be 75 to 100 miles. I am looking for about 150 to 200 rear wheel horsepower. It may be ambitious, but this is what I want. I used to own a motorcycle manufacturing businesses about 15 years ago. I have a complete roller and transmission. I just need to figure the motor and speed controller as well as my electronics as I think I want to tackle regenerative braking. I know that too may be ambitious, but why waste all that inertia when you are off the throttle. I want to be able to engage and disengage the inertial braking. I plan to use everything that a normal Harley would use except the motor and electronics.
@@ThomasShue Sounds like you know what you are doing on the mechanical side.
Try making some new friends locally who have a knowledge of motors, controllers, and batteries. "Makerspaces" and the like are great places to meet new people and share skills!
Good luck on you project!
just wondering what application these motors are originally built for? or are the dedicated to motorcycle conversions?
Motors like the ones I show in the video are typically used for mobile DC powered machines. Anything from floor-buffers to go-karts.
I've even seen small cars running with this type of motor.
Hello, curious if anyone has a good source for these motors? Thanks
Hey, did you find one?
So what if i modified the original gear box from the original bike to fit on the motor, would this increase top speed (other than added control by using the lower gears)
If your transmission includes a high enough top gear, to make the output to the rear wheel faster than the motor can spin, then you COULD get a higher top speed, but at the expense of higher current draw. Typically, you are better off saving the space, weight, and physical complexity by NOT having a transmission. The extra space can be used for a higher voltage battery, for a better top speed.
A transmission wouldn't give you any better control at low speeds, as a modern electronic motor controller provides full torque and excellent speed control at even extremely low RPM.
Few electric motorcycles have transmissions.
Wow they big motors , what they come out of ?
These motors are NOT salvaged or removed from some other piece of equipment. They are motors manufactured for use in go-karts, motorcycles, etc. and are available for sale to the general public, typically through internet/mail-order distributors. Do a web search for "Electric Vehicle components" and you will find plenty of suppliers.
I noticed the 708 has permanent magnets AND brushes. Weeeeird.
There's nothing strange about that - it's a relatively common DC motor setup.
Whether or not a motor has permanent magnets has nothing to do with if it has brushes or not.
You may just be associating permanent magnets with a permanent magnet AC motor.
Hey could I have the link for buying these motors online
The current variations of this motor are produced by Motenergy: www.motenergy.com/brdcmo.html
Here's a link to some general EV Parts Suppliers as well: 300mpg.org/projects/electro-metro/ev-parts-suppliers-links/
@@BenjaminNelsonX thanks
I don’t understand the formula you gave for figuring out what your top speed will be. You said measure the circumference of your rear tire and the gear ratio but then in the writing all you say is motor RPMs divided by just the gear ratio so not sure what your saying. Is the gear ratio between the front and back sprocket or back sprocket and back tire? Or what??
Speed of the motor, divided by the gear reduction, times the circumference of the tire.
If in doubt, use an online gearing/speed calculator.
www.gearingcommander.com
So brushless motors are more efficient? Higher tolerances ? Harder to manufacture? Anyone?
Brushless need completely different controllers to drive them.
What would be a good motor for a 250 or 450 dirt bike
We make LMC type motors and fitted it on our fast charging (8-10mins) motorbike.
Was that forklift motor similar to the one you put in the car?
Is there any product links for these motors?
Motors like these are available from a number of retailers. Here's links to a few places you might be interested in. 300mpg.org/projects/electro-metro/ev-parts-suppliers-links/
Magnífico, qual a possibilidade de montar uma oficina de conversão de carros combustão,para elétricos aqui no Brasil?
Mr. Benjamin Nelson I would really appreciate your help on something. Is there any way I can contact you ?
I try to reply to as many RUclips comments as I can. You can also leave a comment at 300MPG.org and I'm available for consulting as well.
hi. I have a Old motorcycle in my garage.
But i dont have any Documents for engine or the chassis.
Can i convert it into a electric motorcycle ?
Is it legal ?
Advance thanks for the answer.
"Take 2 on that"
Wow I really want to build a electric motor bike only thing I need is the motor
Can I use an AC motor for a motorcycle?
Yes, of course you can use an AC motor on a motorcycle.
The cost has come down and the availability of AC motors (and brushless DC motors) has increased since this video was originally produced.
@@BenjaminNelsonX it's just that I have like 7 old AC motors
It has been said, I don't want a pickle, I just want to build an electric motor sickle.
Thanks for the info demo. I have a saying, LOW POWER IS BETTER THAN NO POWER.
Ever car has a battery in it and the most available power supply.
Y not use induction motor instead of pmdc motor ?
PMDC motors are nice and compact, and easy to control. An AC induction motor, while powerful, will also be larger, more expensive, and more complicated to control. Motors with permanent magnets also tend to be more efficient than motors where electric current creates both magnetic fields.
siiiiick! :)
is ac motor better or BLDC motor for ev convversion ?
you could say it is the same, BLDC is just DC, that is alternated to get AC. It is done, by an "Frequenzumrichter", i dont know the english word
The fork truck motor shown looks to be only designed to run in one direction. It's not worth the risk in trying to run it backwards. An interesting idea nonetheless.
take two on that
I want to put that in my car with some lipos and a button for an extra boost for passing lol.
can we use bldc electric motor 3kw 48v
How much kv motor is required and which is the best motor
ماشاء الله
VERY NICE GOOD
الحمد لله رب العالمين
Sir i bought this motor
Dude
.. you teach to build electric bikes?
Tea Time with Dr. Breen (find on youtube) made most likely by a teenager using nothing but ragdoll and explosion and a sense of humor. over 2 million views
in 2008 maybe, but not in 2018....the prices of e-bikes are coming down, new entries into the market all the time.
I bought a 15Hp electric motor, controller and all the parts needed to build an electric dirt bike based on crf230 frame.....never found the time to get it finished - had the motor mounted, sprockets, etc, but stalled on where to put all 6 batteries for a 72volt system. after several years of not getting any progress, I realized the bike would be butt ugly even if I finished it. I'm no master fabricator, so i dont have the skills to make it work slick, smooth, and look good.
A good question to ask yourself before you go to all the trouble I did: " do i really want to commit hundreds of hours in this or do i really just want to own and ride an electric motorcycle?" If the latter then i recommend buy one of the already great production bikes available now on the market or if budget is tight just wait a few more years - the prices will come down.
Yes! There are now lots of great electric motorcycles out there! The ZERO brand-name has been one of the most popular, and they make a range of models. If you have plenty of money, and just want to buy an EV motorcycle, I would definitely recommend Zeros.
I built my own electric motorcycle for about $2,000 and LOVED every minute of both BUILDING it and RIDING it. Zeros cost considerably more than that...
I also like the idea that if something breaks, I know how to fix it.
There's always been the debate of "Buy vs Build" for all types of projects. As more things are commercially made, it's easier to simply buy, but some people still love the learning and the challenge of working on the project themselves.
You can also apply all these same ideas to a mini-bike, a trike, a high-power go-kart, etc - vehicles which you might NOT be able to simply purchase.
No water cooling and air cooling is useless these don't work in a ebike
He is talking me out of this
Hi Donald,
If watching this video feels like building your own electric motorcycle is too complicated or challenging for you, then GOOD!
I've found that for any project, it's always best to know what you are getting in to. If something sounds like it is outside your technical skill level, that's fine.
At least you know that AHEAD of time, rather than put a lot of money into a project you can't complete.
Electric vehicles really are fun though. Maybe try something a little simpler like an electric bicycle or go-kart. There are all sorts of projects that are fun AND let you learn more.
Good luck with whatever you are working on next.
Brushed.... 👎
have you read the specs on some of the Mars motors? No? well.....
put a generator right after the battery and motor and then put the motor on the lowest setting then connect the generator by a belt and then use a transformer to power another motor so that you increase the battery life from 10 to 100 times. it is the secret that is hidden by big oil for over a hundred years. wanna hear a joke use a 6 volt 2 amp accelerometer. it is basically a conveyor motor with a speed dial but to increase the value put on a big wheel on the accelerometer and take the wheel of the generator and just use a tiny little rod. then adjust for maximum output. i bet tesla is using a transformer afterwards but properly made generators will spin up off the gas pedal and the accelerometer.
Stephen Givens a hybrid system is a bit much to fit in a motorcycle frame. I did build a plug-in hybrid from a Geo Metro. It worked pretty well. Do a search for “Electro-Metro” on my channel.
sir is it a step up voltage system or not.
Stephen Givens The Geo Metro used an LP (propane) generator to power a charger which would feed power to the battery. The generator would run continuously to always add energy to the battery whether the car was accelerating, cruising, or at a stop. It was sort of a low-tech Chevy Volt.
the six volt 2 amps version is a parts conveyor motor with a speed dial on it. and my friends out there say it will work but for the largest versions it takes up to 120 and 20 amps. it all depends on bearing tension, weight and is literally called a Near Zero Point Energy Step Up System. N.Z.P.E.S.U.S. it is what i thought up also.
It is also a d.i.y. system so have fun.
BULLS EYE
did he say "top speed of 45mph" ??? thats not a motorcycle
Hi Dude! Part of the fun of building your own electric motorcycle is that you can design it any way you want! Mine has NO transmission, no shifting, and goes from 0-45 in a snap, but I live in a city, so 90% of all riding is in a 25MPH zone. I geared it for great acceleration and fun, but didn't need a high top speed. With a simple front sprocket swap, I could easily do freeway speed and faster.
A Dude its 45mph in that configuration, and thats gotta be at least a 60 tooth rear sprocket, if he dropped it down to a 44 it would double the speed easy
It's not worth it just buy one
Mark Williams so much less fun and so many things you don’t get to learn in the process. I get that it isn’t for everyone but just buying it because it’s too hard isn’t the way I want to go.
Coca cola vs radiator