How to Build a DIY Electric Mini Bike V2.0 - 7,000W INSANE E-BIKE

[@danmantyla3315]

thank you for the detailed description of the wiring. So many other ebike builds skip right over this!

[@LordHolley]

I love it. That's a slick setup that definitely gives some ideas. Nice work.

[@DIYesk8Builders]

Thanks!

[@LonneLpp]

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!!

[@austinnguyen6538]

You should try to add a suspension fork in the front

[@krishnendusamanta2900]

Yes

[@joej3365]

I would just Jerry rig some shocks in the back and maybe get a fork suspension

[@hexerey]

Who needs suspension anyways

[@21degrees]

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

[@stretchy7]

Well it’s been 1 year

[@21degrees]

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

[@MatthiasGeraghty-vd6go]

Been two years 🎉

[@ZaneLindell]

Hey I was interested how much would it cost if I wanted to buy it

[@Alpha-jg9mi]

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.

[@DIYesk8Builders]

Thanks for the tip!

[@captainamazing1356]

Finally a video that shows what a 80100 motor can do. All other videos I've found featuring an 80100 they only show a wheel spinning for a few seconds. This video is great thanks!!!

[@DIYesk8Builders]

It is a beast of a motor!

[@tylermemyselfandi8077]

When making soldering joints stagger the splices takes up lesser room and doesnt bulge up or chance to arc across

[@TechGoop]

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.

[@JerseyTom]

it has no brakes if the ESC fails or comes unplugged? edit: nm you talked about it at 29:00

[@DIYesk8Builders]

Yep. Major flaw at the moment

[@ixvyri]

Building a 72v 3000w soon so excited!

[@DIYesk8Builders]

Nice!

[@XC797]

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

[@DIYesk8Builders]

We unfortunately do not have a more detailed version at the moment. If there is enough demand we can make one though!

[@XC797]

@@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.

[@OPM6906]

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

[@DIYesk8Builders]

Thanks! More torque this way!

[@OPM6906]

@@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

[@chialor1945]

You fellas are too under-rated. Always cool e-toy contents.

[@Freezy-h8g]

How can I get a battery like that one

[@brunoh45]

Nice project. What are the specifications of the motor you used?

[@brunoh45]

@DIYesk8Builders. nice fake 🤦🏻‍♂️

[@beratkoc3701]

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.

[@DIYesk8Builders]

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.

[@drmh9041]

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.

[@DIYesk8Builders]

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 :)

[@offgrid2010]

This sure motivates me to get to work on my project - a Zike pedal skateboard with the crank and pedals removed. Thank you!

[@DIYesk8Builders]

Good luck!

[@MatthewMartin-h1s]

The links don't all work on the parts list, where could I find live links to those?

[@DIYesk8Builders]

which parts are you interested in?

[@RobbiRocks]

Amazing modern version of the old 60s/70s Taco bikes.. Where can one purchace one or similar of these new legends?

[@Full_Throttle_no_Brakes]

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...

[@dr.chimpanz.1324]

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.

[@DIYesk8Builders]

Probably around 1400-1500 USD

[@dr.chimpanz.1324]

@@DIYesk8Builders interesting. How much is each part generally.

[@DIYesk8Builders]

Depends which part

[@abandomedaccount2298]

Hi can yous add screens for mph with these controllers ?

[@DIYesk8Builders]

We are planning on this

[@wolfiedavis4879]

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!!

[@johnholland3476]

Wonder if put a alternator on other side of shaft would it keep battery topped off

[@iheartgrinman]

Where'd you get the motor and how'd you know which one to get?

[@DIYesk8Builders]

Flipsky 80100 Motor

[@azimalif266]

Can you make a folding one? That can be carried?

[@worlukk]

super clean build. great video and mini bike!

[@spaideri]

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.

[@DIYesk8Builders]

It's pretty solid but that is a good idea

[@tavi7]

Amazing project, would love to see a CYC X1 Pro Motor in the V3 tho, it might be overkill but definitely fun

[@LucasTheDoofusridez]

X1 pro is weaker

[@332ARA]

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?

[@DIYesk8Builders]

That battery should work. 14s means that it has 14 battery cells in series

[@332ARA]

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

[@hotroddinlogan1043]

How much did the whole project cost? This would be awesome to try on my 70s sears roper mini bike

[@DIYesk8Builders]

Cost was around 1500 USD because the frame was so expensive.

[@alfredgoeg]

Hey, i thinked about if you installed gears on it, then it will go faster.

[@DIYesk8Builders]

Very true! I prefer the torque off the line though. I do not need to go faster :)

[@alfredgoeg]

thanks for the answer :-)

[@neilanthonytijing3663]

Try to put a cover on the motor and chain. Hope it will reduce noise and protects your legs if ever the chain snaps

[@DIYesk8Builders]

We are planning to do this on V3

[@jamieniche]

Amazing build. It would be worth adding an eternal heat sink to the vesc.

[@DIYesk8Builders]

100%

[@Raymo2u]

You guys should sand down what you plan to weld for the best joint integrity.

[@RGary_Hall]

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. 👍

[@DIYesk8Builders]

Thanks you the tips! We always love hearing feedback :)

[@derekkolakowski7083]

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.

[@DIYesk8Builders]

They were included in the battery pack that I bought

[@332ARA]

Do you have a link for the battery? how many volt is it?

[@DIYesk8Builders]

its a 16s3p. We bought it off of eskatealex on instagram

[@jonathanbrunache3848]

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?

[@rmerrell]

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.

[@DIYesk8Builders]

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

[@christopherlee2947]

Very cool. Why is the motor shaft sticking out the other end?

[@DIYesk8Builders]

super long motor shaft that we have not cut down yet

[@callumnash3236]

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.

[@story4065]

what dynamo is that, if you may know? 

[@funnyprojects7330]

Hi,you make this mini bike body form yourself?

[@DIYesk8Builders]

The frame came from gokartsusa. The link should be in the description

[@jeffrey769]

What would you need to do in order to make the bike go like 80 mph

[@zogworth]

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.

[@Piorex84]

What size battery did you use?

[@DIYesk8Builders]

16s3p

[@Piorex84]

@@DIYesk8Builders yeah but Ah?

[@DIYesk8Builders]

12.6 Ah, 725Wh

[@johnkelley9675]

Where did you find the bike frame?

[@DIYesk8Builders]

Here: gokartsusa.com/mini-bike-kit-6-inch-wheels-2.aspx

[@Huntnfool]

Great creativity and build! I'm not sure those welds are stronger than the duct tape though 😅 just practice 😊

[@justinwhidby1443]

Was trying to find the motor in ur parts list i can't find it

[@DIYesk8Builders]

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

[@johnog8358]

Only thing I think it's missing is a battery indicator on it like how much charge is left.

[@DIYesk8Builders]

Definitely will put one on version 3.0

[@rohitbista5759]

How long does the battry last

[@DIYesk8Builders]

Good for about 30 miles on a single charge!

[@ferdencio8821]

this bike are really good for commuting specially for students who is located near their schools

[@mountainlion4853]

Great job young man, try to slow your spray speed down and you will get a better result 😉

[@DIYesk8Builders]

Thank you!

[@danielvr9574]

how fast doeas it go????????

[@DIYesk8Builders]

34.8 MPH

[@austinnguyen6538]

Top speed?

[@whyldthing86]

A 3D printed cover for the outrunner motor would make it “safer” for the rotating motor shell.

[@DIYesk8Builders]

In the works for the next one!

[@TheXimia]

Insane project! Really sick! Perfect video!! Thanks for the video!

[@DIYesk8Builders]

Thanks!

[@beechcraft12]

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.

[@Killedbycotton]

Them nuts that you welded and then jb welded the battery box on would have purely been held in by just tension from tightening the bolt

[@mantraexclusive-less2376]

Where can I buy 72000w battery from online please with controller

[@ss4goku9695]

Chain alignment doesn't look so good at 26:11. Great build.

[@matthewherring5038]

Where can I get the battery

[@minalobudeshte]

Is the maker x hi100 reliable esc?

[@DIYesk8Builders]

I have had no problems with it so far.

[@minalobudeshte]

@@DIYesk8Builders thank you!

[@howiekearney]

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.

[@DIYesk8Builders]

We did this but did not show it :)

[@pointless2596]

How do you charge such a big battery

[@DIYesk8Builders]

16s li-ion charger at 5A

[@forreview1717]

Great work! The chain and motor could have some covering to prevent possible accidents involving fingers, burns etc...

[@DIYesk8Builders]

that would be a good idea!

[@robinblackman4509]

Lovely 😝...... shame the cables not hidden...... cables covers or tubing or conduit....

[@DIYesk8Builders]

For V3 :)

[@robinblackman4509]

@@DIYesk8Builders don't know bro.....all looks pukka . Just a bit of cable tidy on those wires ....... I'd buy that for 2 grand

[@LeonHall-q9k]

How much does it cost to buy one

[@3dartstudio007]

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!

[@DIYesk8Builders]

Yes that 100% needs to be addressed soon. It is a real hazard

[@332ARA]

Cool riding footage! Where is that?

[@DIYesk8Builders]

mount hood Oregon

[@JohnSmith-mf6tq]

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?

[@DIYesk8Builders]

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!

[@MrJasenstewart97]

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

[@scooter1748]

very cool. those welds hurt.

[@robinblackman4509]

👍Pukka......I just put a chain tensioner on mine ....... smoother and quiet chain.

[@justinsliker6995]

Should have used that grinder to smooth out those welds, would make for a factory look.

[@DIYesk8Builders]

They definitely could have used more grinding yes

[@josegil3782]

How much $ did it cost to build it?

[@mykrowsy]

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

[@rubenjohnparreno4817]

suspension fork ang put short shocks on your seat for more comfort.

[@talesau8263]

Hey nice work! Do you have your sources and prices of your materials?

[@DIYesk8Builders]

propulsionboards.com/pages/minibike

[@foujj]

So I know the battery is waterproof, but can't the motor get wet?

[@DIYesk8Builders]

motor is waterproof by design

[@oisinogorman35]

@@DIYesk8Builders hi this was also my main question about the bike, so your saying that this motor is waterproof by design? but the windings are exposed to water how can that be?

[@AdamOpheim]

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!

[@DIYesk8Builders]

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.

[@AdamOpheim]

@@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!

[@DIYesk8Builders]

Thanks!

[@TheFiveElders]

Total price on the build ?

[@DIYesk8Builders]

Around 1,400 USD

[@davidaslan4375]

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.

[@caiomarcatto]

AMAAAAAAZING BRO! thank you soo much! Greatings from Brazil!

[@DIYesk8Builders]

Thanks!

[@hiltondrapery557]

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!

[@DIYesk8Builders]

Thanks! There is no problem with heat when charging but when riding the esc and get a little warm

[@michaelknauer5873]

Ware do you live to ride it on the road like that

[@DIYesk8Builders]

Oregon

[@michaelknauer5873]

@@DIYesk8Builders if you were to try that ware I live you be in jail lose your license and 1000 of dollars in fines it crazy we live in the same country and it’s like two different worlds be safe and have fun on that mini bike

[@Everything13ish]

I used this motor (after waterproofing it) for my efoil, migh have to buy another for this kinda project!

[@DIYesk8Builders]

It is powerful!

[@KoiAquaponics]

What motor was this?

[@DIYesk8Builders]

Flipsky 80100

[@AKCALL-hu6ln]

clean bike bro whats the top speed

[@DIYesk8Builders]

Thanks! 35 MPH

[@saintdiego89]

Why didn’t you just tap the bar inside the battery box and get rid of the nut?

[@DIYesk8Builders]

could have I suppose

[@kevinwei8943]

In China, riding an electric bicycle is more convenient than driving, because it is too crowded everywhere in China, there is a large population and every family has a car, so if I don't go far, I like riding an electric bicycle.But China's electric bicycles look like this

[@chikararexzpo]

You should get another motor take advantage of the axle that is protruding from the other side two gears chain loop two motor together make it 14000w 🙃but idk where you going to put another battery and vesc🙃

[@kfrey1]

Regen braking, headlight, taillight and brake light. Taller wheels will smooth out the ride but your frame might not accept them.

[@DIYesk8Builders]

They do have an option for some bigger wheels! Those are good additions

[@Charlie69]

How much did it all cost? I am thinking about building one and my budget is about 2000

[@jamieniche]

Definitely doable for that price.

[@DIYesk8Builders]

I don't know exactly but you should be able to do it for that price. We have a parts list in the top of the description of the video with links so you can look at everything we used

[@Charlie69]

@@DIYesk8Builders how much did the battery cost, no price listed because it custom

[@juliedavid3134]

How much is the total cost

[@DIYesk8Builders]

1400

[@jango3157]

I will follow your journey with this mini bike.I hope someday you can travel with it from Nebraska to Aspen.

[@Earth_By_Board]

How much does it cost?

[@DIYesk8Builders]

roughy 1400

[@TacEsk8]

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