How to make an 1800W electric bike at home
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- Опубликовано: 6 сен 2020
- Hey my friends
I'm sorry I could not film a little more to show you how powerful and fast that engine is but something happened with speed control then I could not get started more do not know what happened it just died
but the engine is awesome
There is more to watch here:
/ @gs_diy_ideas 
Хобби
you won't have long fun with this translation. The engine needs a strong reduction to get enough torque to the rear wheel. Due to your gear ratio, the engine does not come up to speed under load and the wheel torque is hardly higher than on the engine. As a result, the motor is working in the catastrophic efficiency range and the motor will always draw the maximum current because it is massively overloaded. On a 26 inch bike you need to have 300 RPM on the rear wheel for about 40 km / h. Since the engine is about 4000 RPM under load, you can translate with 10-15: 1. That then increases the torque from approx. 5 Nm on the motor to 50 - 75 Nm on the wheel. That would be ideal
What would you suggest? I wish to try a electric lawnmower
The engine as in the video is very good. You only have to translate for a relatively short time, because the engine makes a lot of revs and the wheel does not. This ratio also allows the low torque from the motor to be brought to a high level on the wheel. I built an electric e-scooter with the same engine. This has a 15 inch rear wheel and the ratio is 10: 1 (11 tooth pinions on the motor to 110 chain sprocket at the rear). As a result, despite my 100 kg, I can climb a 15% incline and still manage 30 km / h. In the video it is maybe 2: 1 that would mean that the bike makes almost 2000 rpm. With a 26 inch bike this corresponds to approx. 260 km / h. Imagine the bike is pedaling to 260 km / h. You wouldn't be able to walk a meter. Just like the car doesn't start in 7th gear
What a nerd
@@pyroheimwerker2730 so 72v 3000w motor. To fully completely use it, i should put like 16t sprocket on the motor and 64t on wheel?
@@nierkanierkaha6889 16:64 corresponds to the 4000 rpm motor being reduced to 1000 rpm on the wheel, but that's not enough. 1000 rpm is still too fast and the torque on the wheel is too low for inclines
Awesome. I like your idea of mounting the motor to the frame, I was thinking I’d have to fabricate custom engine mounts.
@Gs DIY ideas I need help to know what sprocket on the motor you used. I've got the same setup with the rear sprocket and same normal bike chain. But I don't know what drive sprocket it is. Maybe you have a link to where you bought it
This is cool. I want to replicate this. Thanks!
is there a BMS circuit board inside your power tool (drill) batteries to protect them from over/under voltage?
I was thinking of doing something similar with a 72v my1020 motor and a 11 tooth sprocket going to the rear cassette of my trike. But the lowest sprocket is 28 tooth on the rear and that leaves a drive ratio of around 2.5 and was not sure if that is enough torque to get a trike moving or if the gearing is to high and burn out the motor? Nice vid.
great video, nice bike! im about to buy a similar motor. what is the top speed you can get in the bike? its a 26 inch correct? do you know the rated torque ? thanks
Is there some limiter in the controller that you dont juice the battery completely low?
How do you stop the chain from dropping down the gears on the back wheel chain always drops down and gets to lose
well done, and about the alternator like electric engine, what you think? what maximum speed?
Where can i get the sprocket on the motor?
The link for the sprocket that goes on the motor??
I know I'm hella late but what's the part that you used to connect the chain to the motor?
Hi! Im building a similar build for my electric bike, and i have a question about the rotation of the motor. I've built my diy bike thats similar to your, and it using the smae exact motor your using, but the motors spinning the wrong direction. How can I reverse the direction of the motor? I have it hooked up to a 2 pin rocker switch and a 22.2v 1400mah battery and it all works, but how would i have to change it if i wanted to make it go the opposite direction? Its going clockwise now, but i want it to go counter clockwise. If i swap the connectors on the motor ( like connect positive motor wire to negative battery wire and negative motor wire to positive battery wire ), would that work?
Short the "reverse" plug on the controller.
Switch the small phase wires the green and yellow
What kind of sprocket is that for the motor? I ordered the wrong one, and I’m kinda stuck here. Please and thank you!
Hello cant you have 2 chains ? The original one + the one for the motor ? So that way you can pedal as well. The original chain on the lowest gear and the motor on the highest . If anyone knows please reply.
That is the build I have made. The pedal chain goes to a 22 tooth sprocket. The motor comes supplied with a 16 tooth sprocket. The thing is, the manufacturers sell the kit as an ebike or scooter set up.
Nice build, thanks for sharing!
Thanks
Where did you buy that gear for that chain?
Hey there. I like the build. I’m wanting to do the exact same thing but needed to know what kind of ignition switch you got? It looked like it plugged in directly which was nice. Thanks.
For a electric motor you don’t need a ignition switch, it’s just a key switch or just a normal switch that you can attach to the speed controller.
Don’t do the exact same thing as this guy. It works but it seems poorly planned. There are so many potential points of failure and bottle necks
@@justbecause8085 I'd like to see what it could have done with a proper voltage supply, those tool batteries connected with just some thin wires and random terminals plugged into the battery spring contacts aren't going to deliver much current.
Hey what sprocket did u use on motor to work with chain
what batterys and sprocket are you using to for the 1800w motor. i recently bought a 1800w motor but i have a budget and i cant find any batterys that would work for under $400 please help
You could put small lithium cells in series to make a big battery out of small ones with ridicolous efficiency by volumes. Plenty of tutorials on that
I'd use a much larger drive sprocket to get way more torque off the line and less top end.
Yeah i think there’s a lot more in that motor
A larger drive sprocket would get way less torque than it has now, and you might get better acceleration paddling with your feet.
He should have left the small sprocket on the motor and left the derailleur hooked up as his transmission.
Well done 👍
Genius mounting :D
Muy bien explicado el video pero a los suscriptores nos gusta ver que tan rapido puede correr.
Hello, the construction of this bike is very nice, I also intend to make a similar one, could you send me a link to the sprocket that you replaced to make the chain fit?
Where can I fine the charging port you installed?
hello does the motor have to be mounted on that side of the bike or can u put a sprocket on the other side of the wheel and have it there
Have been eyeballing a vevor motor for a couple months now..
their kits seem to have the same motor, just different controllers.. on their site, it says it will run backwards, therefore will do regen. I have an older Kona Ute, unfortunately non-disc frame, with plenty of space in the rack/rear triangle area, where if run backwards, I can couple it(motor) to a 53 tooth chainring I've had, machined to 6 bolt disc rotor pattern.. he's running only 48 V.. They go up to 72, but even then, 9 tooth sprocket it comes with going to a 53 (1/6 ratio) seems undertorked.. here he's running something between 24 -28 tooth to 10 on the motor, so 1/2.5 to 1/3 ratio and it's way high geared.. he's got almost zero acceleration, and I doubt he's even close to the power band.. also something has to be said about the batteries and wires used to deliver the juice.. I'll make a vid when I make mine..)
Nice
I have exactly same motor that I want to change the sprocket from t8f to 420 chain sprocket. I have the new sprocket, but I cannot unscrew the nut in front of the sprocket. it just won't budge or move. I wondering how did you remove it the first time? was it very hard for you as well? thanks.
Heat, oil, force
Where'd you find your motor sprocket? My 1500 is 10mm "double D" (?) and the sprockets I'm finding are 12mm or have notches cut into them
The nut turns in the opposite way to normal. So it's clockwise to loosen.
How will u charge the batteries with original chargers now?
Hello i have bought a 1800w 48v motor recently and am struggling with finding a good battery i dont have that big of a budget could you please help me find a good motor?
Those are some nice grips, do you have parts list for motor and grips?
the grips are included
you can also get it with pedals
It's good job man 🤠👍
Thanks
Does this go insane fast or Pop wheelies ? Up hill easy ? I Am looking at this exact idea for a build. with a little changes. I just want to throttle only bike i can go up hillls and play around for a few miles. Like a dirt bike LOL
Estoy en Colombia, como podria adquirir un paquete completo , quiero decir motor y batería ,con sus indicacionea de montaje, gracias
En Ebay, brushless motor kit! 1800 watts..
what happened to controller did you fix it ? should we avoid these kit ??
Almost done my project. Does the brake function actually stop the motor? Or does it slow it down. Need a quick answer
So much for quick answer lol
what size is the sprocket you changed on the motor?
Do you know now?
Hi i thinking about buying the same set and install it in a motorbike frame what do you think it can handle the plus weight?
Maybe but it will be really slow
It will move like 5km/h
@@olafsolafs9950 thank you for your respond
Hello, I bought a set with a 3000 watts 72v brushless motor in which the controller is also 72 volts, but the battery after fully charging has 84 volts, after installation nothing works, will replacing the controller with 84 volts help?
You don't need to do that, you can use the controller you have
Controllers always have a range of voltage, not an exact voltage, same as the batteries
@@valival_and_tine5576 I changed the controller to 84v and everything works. So changing the controller helped.
Good build👍👍
Thanks
@@Gs_DIY_ideas how fast does it go
How do you charge it?
At 7;45 you never crimped the power connectors going to the controller...........Good luck with your build
check if you have 48v controller and maybe you drive with reverse , check wires and direction
Just like always, When I get into a new project I buy a pre built first. I'm rocking the BBSHD. One year latter I am so tired of fucking with why they put a gear reduction on it, and for real the controller sucks the big one. I have the 3000watt version in my amazon cart but after watching your video, I think I will just get the 1800 watt. That throttle looks smooth as molasses!
Usually the term is slow as molasses, is that what you were looking for?
How to buy this kinds of batteries please answer me if you know
do you have the link to wear you got the other sprocket for the motor
It comes with the motor kit package.
How did you get away with using drill batteries also the controller is rated 48beo two little drill packs giving you 50v lol?
They are 24V each so its possible but they look like 2AH how long will that run
How much motor Watt please...
One heavy rain and hasta la vista motor!!
what is the battrey size the the range
How much speed?
How do you produce 1800W , assuming those are 18650 max 22 A peek times 50v is only 1100W?
Ye i have the same problem, just use 13s6p
@@hristotonev6854 how big are 78 batteries?
No way those batteries are 22A, yeah the numbers are fudged
will this break in rain
Moter watt?
Muy triste , lindo video pero podría ir un poco más despacio cuando conecta los terminales, así podemos lo que no sabemos, como conectar el controlador...
pmsl that work is rougher than a bears arse, wtf, tek screw in two parts of the frame that are load bearing just an accident waiting to happen frame snapping and all for an 'EBIKE' with 10mph max speed, thanks for sharing i was going to buy this motor kit and now you have saved me the hassle and money.
The motor kit is very good but the gear ratio this guy did is horrible that's why it's slow
Gs DIY Ideas, could you tell me where you got that brake wire that connects to the speed controller?, Thanks! @gs_diy_ideas
my guess is that your gearing is way to tall to be practical... most folks have much lower gearing using this motor on a 12 in tire
How to charging?
You should have put 3 batteries on it.. that 48v controller can handle up to 63 volts max.
Can I put 3- 18v millwaokee batteries on 48v controller?
I liked the way you mounted this bike, a powerful motor with a 48v battery, friend what is the final speed of your bike. Congratulations on the video.
The tool battery and connections is definitely not going to supply enough current to get much out of the motor, it would be nice to see what it could do if it had a good battery setup.
With the Right battery and gear ratio it goes around 60kph
@@illoko9034 what is the right gear ratio?
Where is the speed test?
want to do 3000 watts 72w for a fat bike.
How to load it ?
Can you use the pedals still?
How theres no chain
Why is it so slow?
What size sprocket did you change from the motor and where did you get it? Awesome build man nice job!
It's on Amazon costs 200 something just search 1.8k brushless motor.
I got mine from eBay just over $100 for motor, controller and grips. Extra sprockets came in the kit.
Quanto custa um motor desse
Hi
Great project
What is the final speed?
I think it 150-180km/h+ in Thailand 1000w we can get 112 km/hr but that a poor tuneing not max yet
Can you send links for buying this parts?
@@moranatal22 they use nomal brushless motor with em150s try search this mortor contorler ECU box the em150s
I would have left that derailer on imagine the pull in first gear.
Cool background music
Wow realy
Have the same motor and controller on my drift gocart.. plenty fast but I'm guessing yours died from trying to pull too many amps out of it with that really fast gearing.
so if i change gearing would it go up hills with 100kgs weight on it? thnks for the tip
@@bluewaxxx yes u need a way bigger sprocket on that wheel
@@Todd_G_FPV how much big? 52T is good enough or more? I'm 95kg and I want to climb 20% inclines at a reasonable speed
@@Yami-rv4ki I would start there and see how it does. I'm really not sure how bit since I can't ride a bike
@@Yami-rv4ki i have the same setup but with an 8t on the motor and 64t on 24" rear wheel.
Ma apka har video daktahu
What is top speed
No rear break??
Bad news!!!
Should leave derailer for gears
You have destroyed the pedal assist. Which is most important part of cycle. Make next video with pedal assist, this video is also good.
Hello shayar motor details next video
How fast can the bike ride?
It looked like maybe 5 mph without pedaling. Seems like it might be possible to connect to the pedals at the same time using two chains, for better performance.
You can not peddle anymore, this is a motorbike and not a bicycle anymore.
I've done a build like this, except I have 2 chains. 1 to the motor and 1 to the pedals. The wheel has 2 independent sprockets. So I can pedal assist the motor.
You could point both your pedals down at the same angle to make better foot rests.
Muito legal, você adapta o motor, sem alterar, o sistema de funcionamento, normal, da bicicleta (👁️👍🏽Brasil)
How many hours after battery drain..
maybe 30mins, there are only two small batteries
Those batteries have very low amp hours
You mean minutes
Unfortunately, a much too small translation was chosen. The motor doesn't really get up to speed, runs with a miserable degree of efficiency and you hardly have any torque on the bike due to the lack of gear reduction.
OSHA here. We have some questions...
Might as well call the transportation dept too.
Easy to use and hold weight up to 300 lb
Hi
You're Gear ratio is wrong you need a bigger sprocket at the back or smaller at the front.
Or both
If the mount breaks you will crash sooo hard😂😂 if the chain snaps under your legs there it can end realy bad😅like dead within 30 seconds due to bloodloss😅
ANYONE WHO LINK THESE ENGINE TEETH THAT HE PUT IN THE ENGINE?
Why not build a bracket and put the motor on top of the wheel behind the seat?. Now you can't peddle.
That's not gonna last long, the way you mount that motor to the frame, you need something much more solid for the long term and as many comments say, your gear ratio is way off. I have mounted on my bike same motor and controller as you, at 52v battery pulls about 38amps maximum and about 2000w maximum and the gear ratio is about 8:1, 74t wheel sprocket and 9t motor sprocket and maximum speed is about 32-34 mph. Also the problem with this motor is not very efficient as I was expecting, is waisting about 700w with no load. I always recommend a hub motor, it is more efficient and lasts longer. I have a 1500w hub motor and is waisting only 170w with no load
I don't like that you only showed the bike traveling at 3mph.
WTF? What can it do?
That was what it could do, though. With better batteries and gearing it may have been more impressive.
Its WAAAAAY overgeared, no torque and ESC melting amp draw
way faster than a 80cc moto bike
How fast does that go
I don’t really know but first crazy first
3mph streaking fast
How could anyone take someone seriously who screws their motor to a bike frame with metal screws
That seemed like a very permanent solution with no room for adjustment.
The gearing is way too high
this is no longer a bicycle because you cant use the pedals anymore.