Very nice!! I'm looking at getting the ME0709 which replaces the etekRt. I'm glad to see how the motor performs on 48v because that's all I can fit in the dirt bike frame I got.
@ryanshearman this seems very powerful for a 48 volt motor, it must be the gear ratio. But how many watts is that motor exactly? I am working on a project that requires high torque, and with an even slower gear ratio, this motor looks powerful enough.
@roossi In addition to the motor and batteries, I also needed a motor controller. I chose an alltrax model that I found on sale online. Do some research on the pro's and con's of different types of motors and controllers, pair that up with a cost-effective battery solution and you're most of the way there.
@FrankaDith you use a speed controller and twist grip throttle. the twist grip throttle connects to the speed controller, and the battery and motor are also connected to the speed controller. this regulates the amount of power going to the motor, controlling the speed. hope i helped.
@Artist334 The twist throttle is a potentiometer that is connected to the motor controller. As you twist the throttle the resistance changes and the motor controller picks up on that change and adjusts the amperage and voltage going to the motor. The batteries are wired in series for 48 volts (nominal).
You should consider an ac motor the regen brakes maximize power as well as provide more up hill climb ability great job though also did you use a gearbox? Not sure but I've heard using it allows higher speeds or more milage great job though especially DIY
@DragoonDark92 - Look into "etek" motors. I'm not sure who produces these motors at the moment, but the motor I used is an "etek-r" which was manufactured by Mars, if I recall correctly.
Electric bike could be a new revolution. It's great to see how people are not waiting for changes but making the changes themselves while encouraging others to do the same. I would me much happier if i could charge my bike in every gas station with paying less money for electricity than for the gas. Good job, man really like your project. (:
@PAINTBALLERization - Yes, the bike has a digital speedometer, an amp meter and a voltage meter. I hope to begin construction of a third e-bike this summer that will have all of these and some temperature displays as well.
@iLikeWHEELIES12 - Unfortunately the weight of the batteries up front make it near impossible to wheelie. If I am lucky enough to begin building my 3rd e-bike this summer, I would like for it to have enough power to wheelie all the way down the block, but I am not sure how realistic that will be on my budget.
If anyone wants to help fund the project then maybe it will be feasible, but I won't be holding my breath.
Hey great job! For my senior project we are making an ATV powered by one of these motors. So far, we are using a 10 tooth on the motor shaft, but i'm worried about the large loading this will put on the motor shaft (about 336 lbs). Any reason you used a 14 to 66 instead of a 10 to 47?
@phephq - Depending on the nominal voltage of your batteries and your desired range, 35-AH might not be the best for range. Personally, I wanted to be able to pull some serious amperage while also having enough juice for a pleasant cruise around town.
what do you mean by thats something the 250 never could have done. i had a tuned honda nsr125 once. i dont even want to come in to what i did with it.
@Scopio99 - First of all, the NSR125 has a 2-stroke engine so you're comparing apples to oranges. It was very difficult for me to burn rubber on the 4-stroke 250 when it was gasoline powered. With the torque of the electric motor, the bike will burn rubber quite easily until the batteries are dead.
@AshtonPhoto - The rear sprocket could have been smaller if I had used a different front sprocket, but I had one on hand that I wanted to use to keep costs down. In terms of ideal RPM, electric motors like the etek-r are more efficient at higher RPM's, but torque drops fairly quickly after a certain point. The bike is very responsive throughout the RPM range so I would say that there isn't any small window that constitutes an optimal RPM range.
@AshtonPhoto Yes, the efficiency of al electric motors (electrical power in vs. mechanical power out) is highest at some point in the RPM range. It is important to note that the efficiency curves for different motor designs can be very different from one another.
Good looking build. Are you an ME student? I'm building something similar for my Senior Design project. Couple of questions, where did you get your sprocket and what size chain are you using? Also, did you buy everything from Electric motorsport?
i purchased my rear sprocket from sprocket specialists. my batteries, front sprocket, magura throttle and 48V contactor were all purchased from electric motorsport. The rest of the components were sourced from various other companies, both local and online
@ryanshearman To extend unlimited mile range, adding a two stroke small combustion engine to recharge batteries. So it can go anywhere to refill or recharge for longer trips.
sweet bike man i'm starting my own with an enduro but how much did your did it cost completely if you don't mind me asking I figured it out to be somewhere between 3 and 5 thousand for mine just wondering thanks
As I said in my reply to andrewweoner, the total cost was just over $2000. The cost of the original motorcycle is not included in that total as it was given to me as a gift back in highschool.
Thanks! I removed the fairings when the bike still had its original ICE. The stock front fairing can still be made to fit, but I simply do not like the look. The headlight and all other running lights have since been installed.
The total cost was just over two thousand dollars, $600 of which was just for the batteries. They are rated for over 300 charge/discharge cycles and have a float life of 6-8 years so I don't expect to replace them for quite a while.
I don't care what others say, electric simply sounds BETTER than any petrol burning engine. I love the whine, nearly sounds like a jet.
pcarlson1979 6 days ago
Very nice!! I'm looking at getting the ME0709 which replaces the etekRt. I'm glad to see how the motor performs on 48v because that's all I can fit in the dirt bike frame I got.
pcarlson1979 6 days ago
Can you send me a parts list for the bike so I can work on something similar? Thanks so much.
NEVADAERWINS 1 week ago
thats insane ! nice work man
wtfisgoingon13 2 weeks ago
This is getting dangerously close to podracing
Just listen to the sound of the bike and compare the takeoff :D
AlexanderStore 3 weeks ago
Sweet! Although I've gotta argue that it looks faster than 50 mph.
highvoltagefeathers 3 weeks ago
you need LiFePo4 battery and better motor
mythbuster204 1 month ago
wow that's loud, try less teeth on rear sprocket?
poolmotorrepairguyFL 1 month ago
Chain is noisy.
remember25october 1 month ago
Wow! Great bike, great build, great video! Thank you for sharing- I love what you've done.
917kporsche 1 month ago
that e-moto bike~ kick's major ass bro~ i want one~ how much??? >:)~
3Dxxxx 2 months ago
Put Ion-Lithium batteries in Man! great bike
fuckutube21 2 months ago
I'm not goin to lie u made it look cooler but a bum motor is better than a electric one, jus sayin
Clemsonkilz 2 months ago
@Clemsonkilz How can you comment on something you know absolutely nothing about?
14omega28ok 1 month ago
Question! How long does it take to recharge, and how much power or volts is it required to recharge the bike? Thank you!
EgyptianKid22 2 months ago
Why would u ruin a ninja
Clemsonkilz 2 months ago
@Clemsonkilz I bought the bike with a bum motor. It sat in my garage for two years before I decided to make something unique with it.
ryanshearman 2 months ago
Beautiful
1991araaron 2 months ago
hi whats the AH of each battery? im guessing about 40, but it would be nice if you could tell me, and a great job you did by the way.
cam1996reeves 2 months ago
@cam1996reeves The batteries are 55Ah units.
ryanshearman 2 months ago
A 250 can burn rubber. Idiot stupid overpayed idiot
minicoalroller 2 months ago
@ryanshearman this seems very powerful for a 48 volt motor, it must be the gear ratio. But how many watts is that motor exactly? I am working on a project that requires high torque, and with an even slower gear ratio, this motor looks powerful enough.
ProleetGreek 3 months ago
nice.... how is it... does it baisicly need only motor and batterys ? and how is the motor ? I mean what do u recommend or where could i get one ?
roossi 3 months ago
@roossi In addition to the motor and batteries, I also needed a motor controller. I chose an alltrax model that I found on sale online. Do some research on the pro's and con's of different types of motors and controllers, pair that up with a cost-effective battery solution and you're most of the way there.
ryanshearman 2 months ago
How do you regulate the speed? im very mechanical but with electronics im uneducated
FrankaDith 3 months ago
@FrankaDith you use a speed controller and twist grip throttle. the twist grip throttle connects to the speed controller, and the battery and motor are also connected to the speed controller. this regulates the amount of power going to the motor, controlling the speed. hope i helped.
ProleetGreek 3 months ago
@ProleetGreek that's exactly it.
ryanshearman 2 months ago
How many KW does this have?
Artist334 4 months ago in playlist Käyttäjän Artist334 suosikit
@Artist334 The twist throttle is a potentiometer that is connected to the motor controller. As you twist the throttle the resistance changes and the motor controller picks up on that change and adjusts the amperage and voltage going to the motor. The batteries are wired in series for 48 volts (nominal).
ryanshearman 2 months ago
Cool bike, nice job. Did you consider running the stock transmission?
rockhead261 4 months ago
cool is it brushless
TheSaltysack 4 months ago
You should consider an ac motor the regen brakes maximize power as well as provide more up hill climb ability great job though also did you use a gearbox? Not sure but I've heard using it allows higher speeds or more milage great job though especially DIY
ScUbAxStEv3 5 months ago
nice one!
evmotorcycle 5 months ago
ive got a 250 and its easy to burn rubber, unless your a noob
AkijoLaGrand 5 months ago
I'm looking to build a bike why the Alltrax 4865 Motor Controller and not the Alltrax 4834 Controller
overboardhumor 6 months ago
Great Job !
weasleteets 7 months ago
Great Conversion!! I miss my electric Motorbike!!! :(
antonioscheel 7 months ago
thats a good build
Expectation247 7 months ago
F U dude! i hate you.... i want a bike just like that!! :(
killer18bee 7 months ago
how do you have the brakes set up ?
xIUBUNTUIx 9 months ago
@xIUBUNTUIx - The bike still operates with the stock brakes from the EX-250.
ryanshearman 9 months ago
love it...
jeffroboy48 9 months ago
hello ... nice bike! has long been that crazy to find a similar engine, can you tell me where can I find a kindly engine like that? thanks
DragoonDark92 10 months ago
@DragoonDark92 - Look into "etek" motors. I'm not sure who produces these motors at the moment, but the motor I used is an "etek-r" which was manufactured by Mars, if I recall correctly.
ryanshearman 9 months ago
nice!!!
monicho545 10 months ago
Electric bike could be a new revolution. It's great to see how people are not waiting for changes but making the changes themselves while encouraging others to do the same. I would me much happier if i could charge my bike in every gas station with paying less money for electricity than for the gas. Good job, man really like your project. (:
z3D69 10 months ago
Do you have any gauges
PAINTBALLERization 10 months ago
@PAINTBALLERization - Yes, the bike has a digital speedometer, an amp meter and a voltage meter. I hope to begin construction of a third e-bike this summer that will have all of these and some temperature displays as well.
ryanshearman 9 months ago
Good Job Man i like
allen423100 1 year ago
What did you use to calculate the sprockets? How many teeth on each sprocket? My brother and I are going to convert a 48 volt bike.
rons66mustang 1 year ago
@rons66mustang - Check out the sprocket calculator on electricmotorsport (dot) com
ryanshearman 9 months ago
Can you wheelie it? :)
iLikeWHEELIES12 1 year ago
@iLikeWHEELIES12 - Unfortunately the weight of the batteries up front make it near impossible to wheelie. If I am lucky enough to begin building my 3rd e-bike this summer, I would like for it to have enough power to wheelie all the way down the block, but I am not sure how realistic that will be on my budget.
If anyone wants to help fund the project then maybe it will be feasible, but I won't be holding my breath.
ryanshearman 9 months ago
I Subscribed! Looking forward to see your next bike in a video!
NotnaRed 1 year ago
Nice one!! :) give us some more videos and advise for people to start building one!!!
retrogazele 1 year ago
@retrogazele - I plan to shoot a video for the 2nd bike I built sometime next week!
ryanshearman 9 months ago
Hey great job! For my senior project we are making an ATV powered by one of these motors. So far, we are using a 10 tooth on the motor shaft, but i'm worried about the large loading this will put on the motor shaft (about 336 lbs). Any reason you used a 14 to 66 instead of a 10 to 47?
awilliams60 1 year ago
how many amphours do your batteries provide? I am buidling something similar with 35-AH SLA batteries
phephq 1 year ago
@phephq - Depending on the nominal voltage of your batteries and your desired range, 35-AH might not be the best for range. Personally, I wanted to be able to pull some serious amperage while also having enough juice for a pleasant cruise around town.
ryanshearman 9 months ago
wow fast!!
theguyvertwee 1 year ago
what do you mean by thats something the 250 never could have done. i had a tuned honda nsr125 once. i dont even want to come in to what i did with it.
Scopio99 1 year ago
@Scopio99 - First of all, the NSR125 has a 2-stroke engine so you're comparing apples to oranges. It was very difficult for me to burn rubber on the 4-stroke 250 when it was gasoline powered. With the torque of the electric motor, the bike will burn rubber quite easily until the batteries are dead.
ryanshearman 9 months ago 5
Another quick question.
Why does the rear sprocket need to be so flippin huge?
The motor makes full torque at 1 rpm, but is there an ideal rpm that it needs to function best at?
AshtonPhoto 1 year ago
@AshtonPhoto - The rear sprocket could have been smaller if I had used a different front sprocket, but I had one on hand that I wanted to use to keep costs down. In terms of ideal RPM, electric motors like the etek-r are more efficient at higher RPM's, but torque drops fairly quickly after a certain point. The bike is very responsive throughout the RPM range so I would say that there isn't any small window that constitutes an optimal RPM range.
ryanshearman 9 months ago
@ryanshearman
So there is an optimal "rev range" even on electric motors?
AshtonPhoto 8 months ago
@AshtonPhoto Yes, the efficiency of al electric motors (electrical power in vs. mechanical power out) is highest at some point in the RPM range. It is important to note that the efficiency curves for different motor designs can be very different from one another.
ryanshearman 8 months ago
@ryanshearman very nice
melvin1123 5 months ago
Comment removed
MichaelPetar 1 year ago
Good looking build. Are you an ME student? I'm building something similar for my Senior Design project. Couple of questions, where did you get your sprocket and what size chain are you using? Also, did you buy everything from Electric motorsport?
MichaelPetar 1 year ago
@MichaelPetar
i purchased my rear sprocket from sprocket specialists. my batteries, front sprocket, magura throttle and 48V contactor were all purchased from electric motorsport. The rest of the components were sourced from various other companies, both local and online
ryanshearman 1 year ago
why dont u add a alternator or two to increase ur milage preety simple add on
PeeWee88David 1 year ago
@PeeWee88David
the amount of energy needed to spin the alternator would be less than the alternator would output
ryanshearman 1 year ago
more like 500v
monstercameron 1 year ago
Great work!
All for just $2k?! That's incredible.
Planning on making another?!
AshtonPhoto 1 year ago
@AshtonPhoto
Yes, a 2nd bike has been built. I will have a video online in the next couple months
ryanshearman 1 year ago
wow thats some torque! what components are you useing?
ubersecretrapist 1 year ago
That is a pretty neat streetfighter you've go there! I'd like to see it on 72V worth of a123 cells!
Tekvicious 1 year ago
@Tekvicious
you'll just have to wait for my next video then
ryanshearman 1 year ago
nice i started its hard tho kool
MrRalph1121 1 year ago
@ryanshearman To extend unlimited mile range, adding a two stroke small combustion engine to recharge batteries. So it can go anywhere to refill or recharge for longer trips.
beancube2010 1 year ago
Awesome dude. I really want to do a conversion of my own soon. Are you using the stock headlight or something else? How does it affect the range?
14212288 1 year ago
excellent job!
Had to be one heck of a cold ride in that weather at 50 MPH !!
:)
Keveeee2000 1 year ago
When are you going to make another video? I want to see more of this bike. I have a conversion underway now that is using parts similar to yours.
Do you use one battery charger to charge all 4 batteries at the same time?
kah00na 1 year ago
You did a nice job! Hows the bike doing now that you have had it on the street for a while?
85bmw528eguy 1 year ago
Awesome job Ryan
thats a real Ebike
RIPPERTON 1 year ago
Nice 5*
ApKak123 2 years ago
no bad
thegreatkoua 2 years ago
Comment removed
BradfromCanada 2 years ago
Nice Job. :)
Spencerian 2 years ago 7
Comment removed
Spencerian 2 years ago
sweet bike man i'm starting my own with an enduro but how much did your did it cost completely if you don't mind me asking I figured it out to be somewhere between 3 and 5 thousand for mine just wondering thanks
fastass05altima 2 years ago
As I said in my reply to andrewweoner, the total cost was just over $2000. The cost of the original motorcycle is not included in that total as it was given to me as a gift back in highschool.
ryanshearman 2 years ago 3
Great vid covering the build, rebuild and ride test. Loved the burning rubber.
Thebrammofan 2 years ago
great vid, even better bike, i really like the naked look, except you have no headlight!
how much did you spend in total and how long do you expect those batteries to last for you?
andrewweoner 2 years ago
Thanks! I removed the fairings when the bike still had its original ICE. The stock front fairing can still be made to fit, but I simply do not like the look. The headlight and all other running lights have since been installed.
The total cost was just over two thousand dollars, $600 of which was just for the batteries. They are rated for over 300 charge/discharge cycles and have a float life of 6-8 years so I don't expect to replace them for quite a while.
ryanshearman 2 years ago