How to Build a DIY Electric Mini Bike V2.0 - 7,000W INSANE E-BIKE
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- Опубликовано: 22 июл 2024
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Chapters:
0:00 Introduction
1:26 Old Mini Bike Recap
2:35 Tearing Down the Old Bike
3:12 Start of the Build
9:35 Electronics
17:34 Programming
18:56 Final Assembly
25:52 Finished Product
27:01 Concluding Thoughts
29:30 Thank you 
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This is crazy, the whole video my attention was there! This makes me want to really build my own bike with this type of frame too
- You guys absolutely killed this!!
thank you for the detailed description of the wiring. So many other ebike builds skip right over this!
I forgot to add in my last comment the power efficiency and weight of this motor you are using. Compared to the old style DC motors this thing is a little monster. We are running the same motor on a setup at work and it's an absolute beast. The weight difference alone is astounding! Brushless motors are definitely the future.
You fellas are too under-rated. Always cool e-toy contents.
It was worth the wait. I am sure you will get 100,000 subscribers and people will watch this 2 years from now. I recommend the next step being to do a +2 (plus two) wheel and tire conversions and play with the the sprockets for more speed. It is not expensive or very time consuming. This will keep the current fans happy, and many new ones will subsribe trust me!!! GREAT JOB GUYS
Well it’s been 1 year
I am surprised the channel is not more popular. I let them know that recent videos have audio problems (Hard to hear) but that issue was not addressed. Also there was little in terms of "bikes" as compared to "boards". Boards of all types have a limited audience
Been two years 🎉
I love it. That's a slick setup that definitely gives some ideas. Nice work.
Thanks!
super clean build. great video and mini bike!
Insane project! Really sick! Perfect video!! Thanks for the video!
Thanks!
What a cool and fun build! I'd love to do something like that. I recommend you cut down those battery box mounting bolts to a shorter length and use some sort of spacer in the bottom so the weight of the battery can sit on something other than those bolts/nuts
Super detailed video , Thank you
Broooooooooo loved it. I want one 🤩🤷🏼♂️🤣😂 30+mph would be sus AF but also just as fun. The battery is nice props to the builder. Can't wait to see what you come out with next.
Amazing project, would love to see a CYC X1 Pro Motor in the V3 tho, it might be overkill but definitely fun
This is exactly the video I was looking for. Thank you/subbed
Now I want to make a mini bike great vid!
Nice build. You could add that piece of metal with the bolts on the bike frame, outside the box, vertically just below those to 2 supports for the battery connecting them, this way you Would have way more space inside the box. So the screws go from inside to outside. Just add washers and use flat head screws OR Soldering the bolts below those 2 pieces of metal that support the battery...
This sure motivates me to get to work on my project - a Zike pedal skateboard with the crank and pedals removed. Thank you!
Good luck!
It is very interesting, you can really tell you are the new generation, I wouldn't have a clue how to setup an electric motor controller but you guys cant get a drum brake to work...
Awesome great job
I love your style of making videos and I would thinnk you'd do the community a huge favour if you did a detailed video on how to solder on new components and cable adapters with 1 or 2 practical examples plus some safty tips.
I want to build something similar but the motor is instead 5500w from flip sky and it’s on a full bike with full functionality of switching gears paired with 48v battery do you think that it can do 40mph?
Nice work bro electronic very nice n easy to install
Thanks!
Good job amazing
I will follow your journey with this mini bike.I hope someday you can travel with it from Nebraska to Aspen.
When making soldering joints stagger the splices takes up lesser room and doesnt bulge up or chance to arc across
May I ask what settings you used under the foc tab? Doing a similar project with the same motor and wondering what you used as it seems to work well. Thank you!!
Love your content and quality video
Thanks!
@@DIYesk8Builders I want to make a mini bike too but I have to save from my pocket money, I don't know how long it will take but I'll try
this bike are really good for commuting specially for students who is located near their schools
Amazing build. It would be worth adding an eternal heat sink to the vesc.
100%
Man I miss Oregon! Great bideo btw.
Wonder if put a alternator on other side of shaft would it keep battery topped off
Amazing modern version of the old 60s/70s Taco bikes.. Where can one purchace one or similar of these new legends?
Fantastic video guys and great explanation of each step involved! This really helps there's a lot of videos you see on RUclips for DIY projects tend to go really fast and skip the details.
How is the mini bike as far as going uphill and torque?
Thank you! Torque is amazing. Bombs up hills. We will have a testing video out soon showcasing what it can do!
Awesome build! Really enjoyed watching this, if you want a voltage and speed meter you could always get a Bluetooth adapter and the VESC app and mount your phone to the bars.
I was thinking the exact same thing! We are going to try and do that. Only issue if plugging the module into the VESC as the UART port is already consumed by the ADC inputs
@@DIYesk8Builders ah yeah I think you would need a spare Rx & Tx port
Yeah I believe so. Maybe I could make a harness that adds them in parallel to the ADC inputs but I'm not sure is that could have an impact on the throttle functionality
Awesome build, my only opinion would be , at 26:11 you can see the chain needs some alignment tweaks, and a tensioner would help with chain tension also.
Thanks for the tip!
I have some reservations about the design of the headset. By welding the steerer tube onto the two bent tubes that form the front triangle of the frame, your relying on the stregnth of that weld rather than the strength of the tubing. Moreover, having a bolt do the job that a bearing might do within that steerer tube means that the strenght of that front triangle is just the stregnth of that bolt. The flat plates that form the upper are lower crown of the fork are also a little less burly than one would expect (they are solid machined peices even on mountain bikes and this can go a lot faster), and they only weld to the interior of the fork leg, not all the way around as they do on most double crown forks. So there's lots of parts can can fail there, and the result of any of these failures could be the entire fork assembly collapsing towards the rider. There are some ways you could use a little extra butting to stregnthen that weld, but ultimately you have to be confident in that m10(?) bolt, and whilst you might have got an milled steel (or otherwise automotive standard) bolt, someone copying you might use a cheap nickel one which don't last long even with furniture. And chances are this person is going to hit a speed bump at high speed. If you have the plates that do as crowns surround the fork legs, and weld a smaller tube onto them that can sit within the steerer tube, and therefore stop the plates departing from the forks should that bolt fail, and then add a plate that can do as butting going from the side of those bent tubes that form the front triangle over the steerer tube, that might help reduce the chances of a catastropic failure there.
Love the project! If you want to build one with suspension, I might know something helpful for you. I built a small dirt e-bike based on an X-Games MotoBike using a VESC6 and a Flipsky 6374, later upgraded to a Maytech 6396. It worked VERY well, but with many limitations due to the nature of the original bike. I'm working on version 2.0 now with a custom frame and REAL suspension parts, but the Flipsky 80100 I bought vibrates... a lot... The shaft has about 0.005" of runout on the far end, and it's out of balance by at least 4 grams. How smooth does yours run?
Wow sounds like a cool bike! Have not had any issues in terms of smoothness with the 80100, but from what I've heard these motors seem to be hit or miss - some work well and others awful. I would love to see some pics of that bike!
I'm using a mongoose cx24v450 as a base bike and it's like the poor man's motoped! My current set up is only 48v 2000w (Mac 48v brushless motor paired to csc 48v 18fet controller) with a 30ah backpack battery but it handles the trails fantastically I don't have to worry about the motor being damaged as it's protected inside the rear swingarm and there's so much more potential for power with no need to modify the frame itself unless you really wanna squeeze a bigger battery on the bike itself. Even installing a bigger motor you just have to get a motor riser plate made
Epic
Sweet build! A friend and I are starting our own. Where did you get your final Sprocket? The one in the parts list doesn't fit the Flipsky 12mm motor shaft. Can't find anything with the right specs online.
It was really hard to find one that fit. I can't exactly remember where we found the one that ended up working. We ordered 4 before we found one that worked
I looked at your parts list and didn't see these: What charge port and fuse pigtail did you use? I was searching on my own and was having trouble finding either one.
They were included in the battery pack that I bought
Hi can yous add screens for mph with these controllers ?
We are planning on this
Do you have any plans as to custom build a motor mount and maybe somehow get rid of the axle that sticks out to the left of the motor. I am building a similar project and would also appriciate an update video about this ebike if you can.
I have drawn up a custom motor mount a few times but never actually gotten in machined. We may decide to upgrade it in the future at some point.
Great work! The chain and motor could have some covering to prevent possible accidents involving fingers, burns etc...
that would be a good idea!
You should try to add a suspension fork in the front
Yes
I would just Jerry rig some shocks in the back and maybe get a fork suspension
Who needs suspension anyways
great video. I am converting a "1970's Skat Cat" mini bike myself. It has front and rear suspension and larger tires and wheels and typical motorcycle style brakes. We are going to use disc brake system for improved braking and for comfort and safety. Your video explains, in detail the necessary components, for a fully functional e mini-bike. This knowledge can be used for building other electric conversion. How about doing a small outboard motor conversion next?? One suggestion , why not cut the unused right side shaft on the motor. It seems that it could pose a hazard in the event of unforseen contact with a boidy part. Look forward to your next project.
That bike looks super cool! The suggestion about the motor shaft is a good one. This is something that we very much need to do for safety - you are absolutely right! Thank you :)
what dynamo is that, if you may know?

it has no brakes if the ESC fails or comes unplugged? edit: nm you talked about it at 29:00
Yep. Major flaw at the moment
Nice project. What are the specifications of the motor you used?
@DIYesk8Builders. nice fake 🤦🏻♂️
Can you make a folding one? That can be carried?
Looks awesome, watched the entire video. I'd add some suspension to it and maybe anyway if mounting the battery a bit lower to the ground? To have lower center of gravity, definitely would have different feel and better handling
I used this motor (after waterproofing it) for my efoil, migh have to buy another for this kinda project!
It is powerful!
Great creativity and build! I'm not sure those welds are stronger than the duct tape though 😅 just practice 😊
A+ for ingenuity. D- for the welds though! (PS, I also suck at welding)
Haha good thing I wasn't actually the one who did the welds then!
Do you have a link for the battery? how many volt is it?
its a 16s3p. We bought it off of eskatealex on instagram
👍Pukka......I just put a chain tensioner on mine ....... smoother and quiet chain.
Such a clean build. Thanks for the video!
Does the motor mount flex? Personally I would support the motor from both sides since it has an unused shaft just waiting to be supported on the other end.
It's pretty solid but that is a good idea
The links don't all work on the parts list, where could I find live links to those?
which parts are you interested in?
bro, you put the o-ring seal on the outside and the nut inside by itself so it can sit flat and pull evenly on the assembly squishing the o-ring outside for your water tight seal. the way you did it can allow water to follow the threads from outside to the inside.
You guys should sand down what you plan to weld for the best joint integrity.
Very cool. Why is the motor shaft sticking out the other end?
super long motor shaft that we have not cut down yet
very cool. those welds hurt.
Where can I buy 72000w battery from online please with controller
How much did the whole project cost? This would be awesome to try on my 70s sears roper mini bike
Cost was around 1500 USD because the frame was so expensive.
I have a bike I'd like to do this to. I was gifted an Onyx 72v 23ah battery. I don't know the series/parallel arrangement. of it . Think it'll work with that 80100 motor? Any recommendations? What does the 14S spec mean exactly?
That battery should work. 14s means that it has 14 battery cells in series
So for the 80100 there is a limit # of #S cells? I don't know the composition of my battery. The bike it came out of was a 4000w. Will a 72v and 80100 be insane? Can I limit the power with the software? Do you still like the hardware choices you made? I want to put it in a Centaur Scooter (look it up) @@DIYesk8Builders
Was trying to find the motor in ur parts list i can't find it
Thanks for pointing that out here it is: flipsky.net/collections/e-skateboard/products/brushless-dc-motor-80100-130kv-7000w-for-electric-bike-electric-skateboard-go-cart
Where'd you get the motor and how'd you know which one to get?
Flipsky 80100 Motor
Im really thinking of building something like this but im just wondering how much something like this would cost. I would probably cut corners like the battery pack holder.
Probably around 1400-1500 USD
@@DIYesk8Builders interesting. How much is each part generally.
Depends which part
6:45 great design
thanks!
Nice video! I get where you're coming from with the GH connectors on the MakerX ESC, but at the same time, they have the major benefit of being locking. In this circumstance with high vibration, it makes sense to have locking connectors. I can understand it being annoying to solder all the wires, but with MakerX, usually they provide all of the connectors, so at least you didn't have to go buy them specifically for this.
In addition, you could probably get away with a higher battery - regen if you want some harder brakes
Hi man! Thanks :)
Yes the GH connectors are annoying to solder but that is a great point that they lock. Personally, I would just prefer the standard JST on most VECS based ESC's.
We are actually making a review on the HI-100 at right now and it's probably the only thing that I dislike about it - though we did touch on the fact that they include all connectors.
We did up the battery regen for stronger brakes least week and it has made a worlds difference.
I'm excited to see some of your upcoming esk8 content!
@@DIYesk8Builders Here's a couple other things for you! I suggest implementing a MetrPro CAN in conjunction with a DaVegaX screen. It would be absolutely perfect for this setup and I think you could come up with a good way to mount the DaVegaX onto the handlebars. In addition, you'd get the ability to track your stats of your rides in the MetrPro app. In my video on the DV6, I showed how the Metr app works a little bit, and it's super helpful to have around. If you use it just give me some idea credit ;)
@@DIYesk8Builders Thanks for that! I've got another battery video coming out this Friday, and a whole long list of videos planned, just cranking through them one by one. Gear reviews, comparisons, wheel reviews, a short board build, and even an upgraded floatwheel-style build as well.
I was actually just looking at the METR after watching some of your vids! The DaVegaX looks super sick and could actually be the solution. I'm not sure how it would connect though with the ADC inputs already using the UART. I looked on their site and saw that it uses 3.3/GND/TX/RX. I suppose I could add a third wire going into the 3.3 and GND in parallel to both the ADC's but I'm not sure how great of an idea that is. Maybe I could 3D print a mount for it to fit on the handle bars too....
I'll be lookin forward to watching them! The quality and detail on your vids is always amazing
Try to put a cover on the motor and chain. Hope it will reduce noise and protects your legs if ever the chain snaps
We are planning to do this on V3
Excellent build guys. Very impressive. One question though? Because the battery is inside the box is there a problem with it getting hot when you charge it up? Also when you're sitting in the seat does the heat from the battery affect the rider? Can't wait for version 3.0 keep them coming!
Thanks! There is no problem with heat when charging but when riding the esc and get a little warm
Do you have a link of a more step by step description of how to hook up the electronics in a more detailed version for those of us that are not up to your level of electronic knowledge
We unfortunately do not have a more detailed version at the moment. If there is enough demand we can make one though!
@@DIYesk8Builders would you be able to tell me if the electronics / speed control company has a software tutorial RE for non techies . I admire your design of this mini bike and its the coolest most efficient one I've seen thus far.
What would you need to do in order to make the bike go like 80 mph
80mph would need a lot more power but should be able to get to 50-60 with a smaller gearing and trying to tuck as aero as possible.
Hey nice work! Do you have your sources and prices of your materials?
propulsionboards.com/pages/minibike
Where did you find the bike frame?
Here: gokartsusa.com/mini-bike-kit-6-inch-wheels-2.aspx
Where can I get the battery
Only thing I think it's missing is a battery indicator on it like how much charge is left.
Definitely will put one on version 3.0
Just a word of caution... If I'm understanding the new brake system... If anything happens to the chain or controller, the bike will have no brakes? Um... Might wanna have a mechanical backup of some sort. It's a cool project, I haven't had anywhere to ride a mini bike since the 80's but those things were SO much fun. Cheers!
Yes that 100% needs to be addressed soon. It is a real hazard
Before welding metal to metal you need to strip the paint off of both surfaces. Not only will it look much better, it will be much stronger.
We did this but did not show it :)
Your welding worries me a bit. Keep an eye out for cracks, especially since you don’t have suspension on the bike.
Also: a dirt guard in front of your motor will extend its life, as well as a bearing in the back side of the motor shaft to balance the torque from the sprocket.
Nice work. 👍
Thanks you the tips! We always love hearing feedback :)
Wow. Just incredible. I have a dumb question though. What's the reasoning behind the motor end having less teeth than the wheel? On bicycles isn't it the other way around. Thanks
Thanks! More torque this way!
@@DIYesk8Builders oh yes, I completely forgot that! 🙈 But how does this config compare with sustained speeds in terms of efficiency? Thanks again for the reply
Should have used that grinder to smooth out those welds, would make for a factory look.
They definitely could have used more grinding yes
Killer design. By far the most sexy looking bike.
Shame this vid caught my attention after two years.
Learn to weld! You'll use it a million times over your life if you plan on continueing this awesome hobby! It's great someone helped with with the welds but you'll do a better job if you learn to do it yourself! Awesome bike! I want to build one now!
Thank you! We definitely will!!!
Also, you could use a better understanding of the electrical side of things. The rating of that box is now (officially) IP00. It looks like it should keep some dust out, but definitely don't let the box get submerged.
Great job young man, try to slow your spray speed down and you will get a better result 😉
Thank you!
Open space = Battery space!😉
A 3D printed cover for the outrunner motor would make it “safer” for the rotating motor shell.
In the works for the next one!
Top speed?
Hi,you make this mini bike body form yourself?
The frame came from gokartsusa. The link should be in the description
suspension fork ang put short shocks on your seat for more comfort.
Also if your chain broke you don't having any brakes, this happens a lot on mini bikes. I would like to see a Baja version of this bike, bigger motor and more batteries.
shoes.
Cool riding footage! Where is that?
mount hood Oregon
Is the maker x hi100 reliable esc?
I have had no problems with it so far.
@@DIYesk8Builders thank you!
How long does the battry last
Good for about 30 miles on a single charge!
Do you have any actual "acceleration facts" or data on this setup? Those motors claim alot of power/watts. But I'm hearing they just don't put the power down well compared to the typical brushless my1020/kunray motors typically used in this application. For example my elec minibike will run a 2.4 sec 0-30. While a Surron does a 4 sec 0-30. I run the "72v 3000w" brushless my1020 motor with a kelly 120 "phase amp" controller. Going by numbers, the motor you used should blow ours out of the water. Any performance data would be great, thanks!
The performance is most likely not as good as yours! These motors have high power ratings for some reason but the torque rating is not great. We are actually working on a full review and will throw in an acceleration test! My guess is that it's not as good as it seems.
@@DIYesk8Builders Get a kelly KBS-X on that thing with a my1020 2k 48v motor and it'd be night/day I'd bet. Good luck. Great vid!
Thanks!
Hey, i thinked about if you installed gears on it, then it will go faster.
Very true! I prefer the torque off the line though. I do not need to go faster :)
thanks for the answer :-)
How much does it cost to buy one
how fast doeas it go????????
34.8 MPH
Lovely 😝...... shame the cables not hidden...... cables covers or tubing or conduit....
For V3 :)
@@DIYesk8Builders don't know bro.....all looks pukka .
Just a bit of cable tidy on those wires ....... I'd buy that for 2 grand
you need cvt gear for efficiency