Homemade Electric Bike with Custom 72V Battery Goes 75MPH | 14,000W
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- Опубликовано: 11 янв 2023
- A 75 MPH DIY Electric Bike! I built a custom 37Ah 18s Li-Ion battery with Metzev batteries (metzev.com/), capable of outputting over 300A. I am using a Sabvoton72150 speed controller and a QS V3 3.5T 5000W hub motor, which can peak up to around 14,000W. The mountain bike has 29" wheels, which allows for such insane speeds. I haven't even topped out the 4th power level while riding and hit 65 lol. That is the fastest I have ridden on it, but when doing static tests, it reaches 74.9MPH. It's terrifying. Don't try this at home!
Music:
Evan Moitoso - / evanmoitoso
@evanmoitoso
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www.patreon.com/AllThingsElec... 
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Be sure to test every tire by running on the back wheel and getting it up to 80 mph before going out on the road. Bike tires explode easily at high speed, especially if they are unbalanced.
That looks ridiculously scary! Dope build!
Respect for going over 50 with a hard tail and rim brakes
Oh, and I can't help but say but the entire time I was watching this my brain was screaming "Dude! That bike's bearings were NOT designed to travel at any speed like that for ANY amount of time!!" I am sure you thought of that, but dear god, please be safe, you're brain is a treasure that should not be splattered on the road from a oversight like that lol
Tell him again … I was scared for him , not even a helmet , be safe bro I mean that with love
Well done for having that rear torque arm the right way round. Lots of people have it on top of the rear stay.
I'm sure I speak for us all when I say that we want to see this thing go straight and fast Post a video when you do it you did an awesome job this is kick ass
Wow 🎉 that’s some bike man. Well done !!!!
2 days 1100 views. You would think this would have millions of views by now. Nice build!
I feel like RUclips doesn’t like me
Good thing your uploading again
Wtf. Crazy fast!
That's one Helluva dingus bike 😅☝️🤟👽🚲🎬
the mad ebike professor lol... your pretty brave to go that fast on such a contraption lol! But thats life isnt it? lol Good luck kid!
holy shit! that is so fast!
That's one of best seen yet crazy
This thing is insane. I love it! 🤘🏾
Also, your driveway looks like a Porsche dealership lol
Thank you!! haha
I was concern until you mention you had regen brakes, sick DIY.
Thanks man, the regen does help a LOT
Dude if a fourtune 500 doesn't offer to buy this design from you or offer you a job, you could slap my ass and call me Nancy. This is the best guerilla garage engineering creation I have seen in a very long time. You, sir, are going places (at 75 mph on a friggin Delorean bike!)
hi nancy.
Nice bike build. I strongly suggest upgrading the brakes into high quality disc brakes if you plan to keep using this. Although i would like to revamp my own 250w folding e-bike into a 40mile per hour beast unfortunately we can't ride at such speeds here in the city.
Be a man; switch to coaster brakes
Reminds me of when I was a 11 year old with a Schwinn stingray style that had a two speed transmission that you just kick backwards to change gears, and then go backwards and hold it still to brake. Was going down a hill steeper than I could peddle 45+ and when I hit the brakes the internals of the 2 speed hub blew up and locked up the back tire permanently.
last year I checked most of el. bikes to buy one and most high power ones had motor open with holes so one rain and it will be dead, thus got one which was most protected in plastic casing for electronics and sealed it's electronics even more 20-30 rains down and still running
Thats insane. Are those stock rim brakes? Will you show us a build video of the battery?
I'll make a video of the battery build if enough people are interested
@@AllThingsElectric_ sounds good 👍
@@AllThingsElectric_ i want to know the basic ways in building one with a busmi thingly and understand what it really for. i just dont get why you cant just connect the batteries and connect the motor and just ride the battery without one.
also how you shop for one
I can make a more in-depth video about it, but the generals of a BMS is that it balances all the individual cells' voltages in a battery, keeping it stable (so it doesn't blow up from overcharging or over discharging). You don't need one, but you would have to balance charge after every discharge.
nice dude. With your skills you'd be able to get that battery looking a lot smoother without sacrificing speed or power.
Amazing footage on the road. Silly question is how did you film while on the road with out a stick?
Insta360 X3
Part 2 "Back for hospital." Those bicycle wheels are not meant designed to withstand high speed impacts, hit anything more than a leaf and the wheel will buckle, as for the brakes, your stopping distance would be a mile !
Yep! It's dangerous. As for the brakes, 4:41 and 8:58
Seems like he knows what he’s doing. I’m sure if he designed it for that speed then he definitely planned out adequate brakes/wheels.
Thank you sir! The strength of both rim brakes + maximum regenerative braking actually gives me a great stopping power.
Pretty sweet and scary build dude. Is there a way to turn the MX650 into a dual 72v brushless hub death trap? I want to do it to mine but can’t find nobody on RUclips that has done it before. Would be some awesome and unique content if you uploaded about a diy project.
I'm sure there's a way to do dual hub motors. Would be sweet, just very expensive.
@@AllThingsElectric_ getting all the details and parts to get the project off the ground seems like a headache, would’ve been a blessing to see somebody else on RUclips make a diy video on it…
You got a hub motor dese gears even do anything ?
What is the range on something like this?
Any updates on the bike??
Seems like some pretty good engineering, it can withstand 75 mph😂
Bro I subbed soo fast!
I just witness him on it OMG!!!!!!!
Hey how’s it going, which motor is that how many watts is it rated for? I have a 2000 watt motor ( same kind as yours) thinking about upgrading
It’s a QS V3 5000W hub
what hub motor is that? cool build battery looks bit sketchy tho but u built a rocket lol
I see an electric cafe build in your future...
What watts rear wheel is that and what controller you using please I have a 5000watt rear wheel and a 80a controller but mine does 45mph max my battery is a 72v 40ah .. I'm thinking I need to change my controller for more top end .. it's a rocket to 40mph
So, I brought 5000w fat tire setup like yours. Difference is that the 72v 40ah must have discharge of 100a, I had the 80a and it sucked. I brought the 100 Amp controller and hit 65 without even going full throttle. Gotta upgrade to 100amp discharge battery with the 100 a controller.
@@JCJeffrey thanks for info my battery is 100amp discharge I have ordered a fardriver controller it's here just havnt set it up till my new frame is built hopefully il get the 60mhp plus top end as when it hits 45 feels like it's hitting a limit with the controller iv got
are you sure the bike is made to go this fast bro? stay safe
I’m trying to build a bike that goes faster than the 20mph … I have a bafang wheel hub and a bike nothing else I’ve been researching… anything you can recommend for a controller?
Sabvoton or Kelly, best controllers for the price. BAC8000s and the surron controllers are way overpriced
We NEED TO NOW SEE A REMATCH BETWEEN YOU AND THAT MUSTANG 😁😎⚡️
Stay tuned!!
Amazing diy. Epic!
Can I ask how you got the following footage of you on the bike? Is that a drone? Would love info on that just for my family life would be an amazing way to document family holidays 😂
360 GoPro on a stick mount. The stick has a "green screen effect" which makes it invisible to the camera
Insta360 X3
Imagine crashing that 😳 🤯🙏
Watch those rim brake pads, I've melted some coming down steep mountains.
Also I don't know which is more crazy, the build or the fact you trust those bicycles tires at highway speed 😂
Man I wish I could explain how weird it feels to go that fast on tires that are probably rated for 30mph. They hold up tho lol
How to build a mobile ebomb, I'm joking....😅 Nice vid and project.
God watching you do 75mph on a homemade ebike with rim brakes: 👀👀👀👀
Safety first. Great ambition and the knowledge to die 😂
So this is still the same motor and controller as for the 10KW version?
Yes, this with a the rim brakes is a wonder! But for going downhill on a regular bike they must also do their job. They even perform better with for example pads from Kool Stop or similar. The bicycle tires could be a problem on high speed.
Yes it is the same motor, just putting more voltage through it.
The battery is 66.6 volts, not 72. You base the rated voltage by the nominal voltage of the individual cells. For example. You have 18 cells in series, so the math would be 3.7 volts per cell, X 18 in series. 3.7x18=66.6. You're welcome.
As some on commented, test the tires, tubes and rim first. How would you do if you flatted or worse, blew up the front tire and was unable to reliably steer. Crash and burn on a bike is not fun.
Who was following him with a camera recording him?
Put all that stuff into a minibike frame and hook it up to a chain drive
"Death trap"
Is it fast? I so so fast faster than fast?
That buzzing sound is concerning
75mph is not realistic , the real speed is in the bike on the road, and this motor cant put more than 100kmh with this battery, I have one similar and only arrives at 80-90kmh
I did 74mph but I have 29in and sabvoton 72200 controller.
Idk how many turns the motor is but I was wondering if there's a timestamp with the actual 75mph speed. The most I've gotten on a 72v battery is 57mph with flux weakening and a slight downhill. Sorry it says 3.5t in description.
Careful lol
Those tyres are rated for 120km/hr?
Mine is hard tail too rear hub
Suspension ain't built for that speed. Thats a death trap. One pot hole away from oblivion
Just don’t hit a pothole
It went together easily in less than an hour. ruclips.net/user/postUgkxHL1v1R3NE5x4KiYfyt8dnQmyNYz7qi5L Make sure the front fork is forward or the pedals will hit the front tire. Tires are both a little soft so it needs air before I ride it. The rear wheel didn't come with a clamp regular bolts hold it on. The front had the clamp. No scratches out of box. Rims are a little off with a slight wobble. They could have spent more time with the spoke tool fixing the run out. So far out of the box I'm happy with it. I did replace the pedals with a nice aftermarket set. After riding it a bit my A$$ is a bit sore so I ordered another seat. Overall I'm nearly 60 and didn't ride a bike in 30 years. I like my new 29" Schwinn. It will be used for casual rides with my friend.
And here i comment as a swede where the strongest legal motor for an electric bike is 250W .... yay...
This is amazing.
What is the range on average speed say 20-30mph? I'm really interested in the range.
And what is the cost of all the parts?
Haven’t done a range test yet, but with my old setup (20Ah) I got 50-60 miles. Leads me to believe the range on this setup (37Ah) would be around 80-90 miles
The cost varies depending on where you get the parts. I spent about $2000
@@AllThingsElectric_ - Faster = less range = more air pushing.
Omg. I'm so jealous.....mine only goes 28mph.....I actually get bored riding...
Wouldn't it have made more sense to put the pegs where the pedals are and swap those out?
4:32 I show what it would be like to have my feet on the pedals. The battery mount is in the way. I also tried to take the pedals out but need a special tool to loosen the crank lol.
If that thing ever catches on fire, you'll probably be peeing out of a tube after that. Maybe put it on a rack behind the seat.
I trust my battery more since I manufactured it. Trusted cells and good protection/case. Hopefully that would never happen, but mounting on the back would be unreasonable for the bike's weight distribution.
well done would you consider building me a battery like that
Absolutely, message me on Instagram. Link is on the channel page.
imagine doordashing with that
I actually have lol it was pretty profitable
@@AllThingsElectric_ thats the last straw im making one
Build a go kart bro it would be easier to Mount and donuts are always fun.
Coming soon…
I made my own ebike and you wanna race?
Definitely!
Rim brakes on something with this much power is not safe. Please get hydraulic disc brakes.
Dude please tell me you put some hydraulic discs on there😭
Cable rim brakes ;) don't worry, the regen is wildly strong
honestly didnt even think about the regen, good point.@@AllThingsElectric_
OMG no disk brakes? this is silly! you can get disk brakes so cheap even a 2nd hand bike would be better
You need to do it upgrade to the battery the amount maybe go on the back like back rack good job 👍
Why not just get a bike rack and bungji it on the back look a lot neater
I thought through that approach, the bike would be very imbalanced and the rear tire would not be able to support so much weight. The bike would do wheelies even under light acceleration.
This is pretty dangerous man, this frame is not meant for a electric bike with so much torque like yours. The frame may crack or break! Try looking into tougher bike frames like enduro, motorcycles or dirtbike frame
Very correct! Nobody puts this much power on a frame like this! That's why I thought it would be interesting and make a good video.
Instructions please
Get a big fkn battery, step 1
Can u build me a e bike.? Real inquiry!
I could yes! Sent me a message on Instagram or an email. Both are on channel page.
U should of bought a bike rack and put the battery n the back not the front?
Too much weight on the rear, that would make it handle poorly. In addition, the rear tire and tube would not be able to handle that much weight.
sell it to me
You're an accident waiting to happen, I just hope you don't hurt anybody else.
You do realize you're not really doing that speed right? Get a GPS on your phone and let's see what's up. You're making yourself look ridiculous I assure you. That meter is not accurate
Lol it's accurate, I've tested it against a GPS app on my phone. Read the description.
He did 75mph no load at almost 3,000w look closely at the intro, not trying to hate but put a gps phone app like I did in my speed video.
U made that bike look Ugly as hell doing that u know day have triangle 72v batteries u could of put it n the middle of the bike then put the controller underneath it smart guy
Just buy a Motorcycle.