I Built a 15,000W eBike and it's WAAAAY Overpowered

What would happen if you built an eBike around a 100V LiPo battery pack and a 150A controller? Something that's kinda terrifying to ride...
Need help with your build? Schedule a consult.
calendly.com/gaiusgarage
LiPo Battery Pack Video:
• Ridiculous high-discha...
Yuyang King Controller
www.aliexpress.us/item/325680...
Li-po Pack
hobbyking.com/en_us/turnigy-h...
3D printed battery case STL files:
cults3d.com/en/3d-model/tool/...
#electricmotorcycles #ebike #diy #motorcycles #lithiumionbatteries #diyebike #motorcycles #caferacer #dirtbike #electricvehicle

[@Free_Krazy]

"Hey theres a weakpoint in your frame" "Actually the weakpoint IS the frame" Lmao, this guy is a true engineer!

[@charlestannehill7537]

Steel frame with rear suspension will do wonders. Box frame preferred.

[@Fred_the_1996]

@@charlestannehill7537 where would the batteries go though

[@charlestannehill7537]

@@Fred_the_1996 make slim battery packs with attachments to the frame.

[@Jbmc65]

Oh ya, he is truly a talented young man.

[@Jackal9405]

St this power level why not just use motorcycle frame, just for safety.

[@Blueisoji]

Imagine riding this on the highway and people being so confused

[@johnames6430]

people are confused when I fly by them at 20mph on side streets here

[@yamiomo7392]

@@johnames6430 People are confused when I fly by them in the 0-20, and then they end up breaking the speed limit and going 40 mph to show off their lack of brain cells from huffing fumes all day.

[@ag3ntmp339]

Or having to use the brakes lol dude brakes on that gotta be completely pointless

[@reuven2010]

kzbin.info4lZZtTmGISo

[@heftycat]

the stupid thing is is that they should all be intrigued.

[@topelite666]

Always refreshing to see people building their own parts instead of just buying premade kits online

[@observingrogue7652]

I don't have the money or living space for a 3D printer, 3D scanner, a lathe, drill press, and a lot of great machining tools I've seen creators like Warped Perception have. So I have to make do, looking for premade brackets for whatever I have planned, and fabricating things out of wood, outdoor electrical boxes, plastic bins, and super glue with baking soda.

[@observingrogue7652]

The bicycle engine mounts for things like a predator 212, are great for holding big & custom batteries.

[@ag3ntmp339]

Depending on what you got time for yeah. One of the first things I thought of was what if I slapped all the extra batteries my bike come with together what would it do

[@andrewstephens2687]

@@observingrogue7652 wood/bone parts is a sick idea for bike-packing with extended periods of no resupply, or just people on the fringes of supply chains.

[@mattmarzula]

I wonder where they bought the 3D printer... 🤔

[@autumnday8422]

pretty much every 750 watt ebike you can purchase commercially is extremely de-tuned. the throttles are maxing out at about 40% power in "legal mode", and those things are still a little quicker than is comfortable on a really cheap bike. This thing is probably so scary lmao. I love it

[@AaronHendu]

When I got my first 750W setup...I was scared to go full out lol. Mostly because the battery made the bike top heavy as I had to fit it on the top tube instead of in the traingle. But I got up to 25mph almost instantly and backed off lol. Now it has two 750W hub motors...well..."250W" run at 750W. I still dont know the top speed lol. I was run over by a car a few years ago and my balance has never quite been the same. I only added the other motor for 2wd for help getting up trail hills with my bike camper which is about 130lbs. I am 130lbs, and the bike is probably 45 to 50lbs. So about 310lb to get up hills. I see people on mobility scooters that weigh that much going up hills, so I am hoping it is doable but havent tried it yet. I will keep adding power until it can. I am hoping to avoid mid drive as I had one and didnt like it, mostly cause of noise but also I didnt like having to match cadence...i wanna ride like a scooter sometimes.

[@omegahaxors3306]

It's similar to building a computer: Overtuning your specs makes it run way more efficiently and also last a long longer too. Any PC builder worth their salt will overpower and underclock their components so that they run smoothly for their lifetime.

[@GewelReal]

​@@omegahaxors3306Less heat is less heat in the summer

[@raijin7707]

My heart was racing watching him ride this Frankenstein of an ebike 😂

[@Minacious_Shenanigans]

@@raijin7707 You should see mine lol

[@mrkeopele]

beautiful build design. suspension definitely helps keep the tires on the ground, and if you're feeling front end lift adding cargo racks to the front to go get groceries should help keep it down.

[@raymondo162]

FOOL

[@user-cv9nu1fg6x]

fr no gorceries baskets keeping the front wheel down grandpa looool@@raymondo162

[@Jolly-Green-Tanya]

Dude your bike was punching through the 50s like nothing. On a smooth road this thing could probably hit 80 mph.

[@GaiusGarage]

it definitely tops out at around 60 due to KV of motor & voltage but 80mph on this thing is near suicidal

[@smithright]

⁠@@GaiusGarageWhat feels the least stable? There’s a guy running aluminum frame e-bikes at 100mph. Tour de France and Mountain bike downhill racers can hit very high speeds. Which components are you most worried about?

[@GaiusGarage]

@@smithright there no steering damning so Im afraid of the steering resonating out of control. This aluminum frame is not designed for these speed and forces - unlike steel, aluminum has little elasticity and fails suddenly. just not worth the risk IMO

[@geemy9675]

​​@@GaiusGaragealuminum is not the problem you just need a sturdy frame that is designed to take much more than casual pedaling 15-20mph on smooth pavement. your hardtail MTB frame is probably capable of much more than you think. as long as it's a brand name bike and not Walmart Chinese junk (don't get me wrong Chinese know how to make good stuff Taiwan makes frames for the whole world, ranging from junk to high end). full suspension mountain bikes like enduro or downhill would be even sturdier but way more complicated to convert to ebikes especially with a big battery. But stepping up from entry level hardtail to a more advanced trail focused aluminum hardtail with modern geometry and 29in wheels would give you a stronger frame, longer wheel base and more stability at speed. these frames are designed to work with a long travel dropper post so the top tube will be lower and the triangle smaller, less space for the ebike conversion so you might need to make a triangular battery pack that fills the frame for high power/high speed I'd pay extra attention to the hubs and maintaining them (probably change the grease for something rated for higher speeds) and probably relace the rear wheel with stronger spikes or at least check the tension regularly especially before a high speed test. then of course obvious upgrades to go 60+mph: road tires for better grip and stability and brake upgrades to reduce brake fade like bigger rotors.

[@geemy9675]

80mph is physically possible with the right "gearing" (kV and battery voltage) form a motor point of vue as 200cc 25hp motorcycle reach 90mph

[@loseweightbecomefit]

Damn man, very impressive. ❤ Side note: My electric scooter makes 'just' 8.5 KW peak power, but has a tops speed of 116kph and does a 0-40kph in 2.8s. 0-60 in 4.4s.

[@CalculatinGenius]

Holy crap that thing must feel like a rocketship

[@JoseMartinez-zr4xp]

yeah bro i gotta be easy on the throttle on takeoff or else its gonna do a wheelie

[@AgastyaXV]

ola s1 pro owner xd, i got the gen 2, pretty damn fun. Will lurch forward at every twist and will spin the wheels if it isnt solid ground

[@carpediemarts705]

Same sort of acceleration as a Tesla. No gear shifting.

[@justmechanicthings]

my 3000w 72v ebike tops out at about 80kmh and thats scary enough for me

[@WeirdScooterKid]

This really makes me want too get some lipo batteries for a bike lol. That voltage sag at 140a is just BEAUTIFUL. Only like 5-6v for a 24s pack that’s only 20ah like it’s know that lipo packs are great with putting out amps but seeing it is just great. Nice build

[@AaronHendu]

Yeah, my next battery pack definitely gonna be lipo! 18650 based batteries are great and cheap, but lipo is getting cheap too because of drones!

[@user-qj9xd7nl7n]

what the fuck are yall even saying@@AaronHendu

[@madbruv]

@@user-qj9xd7nl7n they are discussing the intricacies between 18650 batteries, and lipo cell packs, why are you so mad

[@SpencerHHO]

LiPo have by far the greatest power density of any chemistry but they are also the most spicy in other ways too. The reason they aren't used in applications that don't need the most power possible from a small battery is because they like to catch fire extremely easily lol. They're lots of fun but be careful.

[@themichaellaweraproject]

Dang. This guy is smart as hell to be able to tweak all these things

[@slimsqde7397]

hes smart but its not anything you couldn't do, just take the time to research and learn, anything is possible

[@ernie5229]

Ask him the power rating on his "15kW" motor and listen to his explanation. You might change your opinion.

[@Mash3OH3]

​@@slimsqde7397 I agree when I built my ebkke that can go 43mph. It made me think I could do more. It was a gateway to CC engines lmao.

[@ChrisCrossingWires1212]

I know that feeling of having to ease into it. I can relate nice build, currently working on my race bike but I have a MTB as well that will only do 40. You made me wanna step my game up on that thing.

[@GaiusGarage]

my advice you be to let the bike be a bike and look to something like a sur ron to MX style frame for the 50mph+ stuff

[@ChrisCrossingWires1212]

great advice, you mean like this kzbin.info/www/bejne/rajUpIpnqt9sg7s

[@chb2live]

​@@GaiusGaragehey can you sell me your 2000 watt setup

[@chb2live]

​@@GaiusGaragecan you share the link to the 60 amp controller from second stage bike

[@alphadream953]

i love how this video is straight to the point

[@antonioneves7451]

wow this is a work of art, great diy project!

[@JoeVinson]

I would consider a motorcycle frame of some sort with that much power! This is great! I am thinking about buying a blown up motorcycle and converting it to electric. This gives me several new ideas. Thanks!

[@GaiusGarage]

yeah this bike frame is definitely not a good fit for this setup. But you dont need to go full motorcycle for this either - a stealth bomber frame is perfect for this - I have a build video here: kzbin.info/www/bejne/j6G9cmagdrV9lac but if you wanna go full motorcycle conversion you can check out this video kzbin.info/www/bejne/rJ-mkqCtg8mSf7c

[@ebouwman034]

Honestly, ya why not! You could probably get something for a few hundred $$ and then it would have a VIN so maybe it would be road legal and insurable.

[@MrElapid]

Somebody here posted a great vid. of a small 1970's junk motorcycle converted to e-power. The motor was swapped for a battery tray and it was perfect for a high- output ebike. What I don't know is whether you'd have to register such a thing.

[@MrElapid]

The stealth. B. frame rocks because it can be built into something that looks like a bicycle. Who wants to register one of these things? Not me.​@@GaiusGarage

[@Johnnyaspec]

Damn! You're too scared to give it the full send and yet it's accelerating faster than most cars!

[@macmccune21]

Its beating a lot of motorcycles

[@omegahaxors3306]

Biking is the only form of transport more energy-efficient than walking.

[@minimoviezzz]

​@@macmccune21 don't think so, mine (600cc) does 0-60 mph in 3,2s

[@AbhijeetKumar-cm3jh]

@@minimoviezzz you really think a 600cc sports bike is a "normal" one, maybe in the hobbyist section, but in most of the world, a 125cc is the normal.

[@raijin7707]

tbh I was hoping he wouldn't that frame was incredibly weak with all of that load it was under as it was and if he hit the breaks on that shit for an emergency his ass would have went flying or wrecked right into something, that bike probably would have combusted too 🤣 this whole damn invention was dangerous as it was, why increase the odds of ya boy dying?

[@assorted-rubbish4070]

lol... ok am at the same place you started atm, you just inspired me to rebuild 'again'. thanks for the info and push, love diy.

[@senmakesmusic]

this thing is sick! great work.

[@p3dtesla118]

Man good job superb !!! You are doing all of this better than any manufactury !!

[@westcoastadventurers8504]

I'd buy one.

[@shamimakhtar1]

How much

[@brianrussell6010]

Add some 20lb dive weights to the back side of your front wheel. Use a front pannier kit flipped around and mount it with stainless duct clamps. The added weight will restore the bikes original balance you changed. For best stability at speed, your front wheel really needs more weight, as low as you can get it. A super heavy duty wheel will give you gyroscopic stabilization once you get moving, but might be unstable AF at low speed.

[@kasuraga]

Those tires are really heavy. I have the same ones. But I also run tire liners and downhill tubes. Probably would do a good job at adding a significant amount of weight based on how heavy my wheel setup is. Not quite 20lbs on the front end, but it's way heavier than it needs to be (I just never wanted to deal with flats. Never got a flat with that setup)

[@AaronHendu]

Domt add weight ballasts on an ebike...always add more battery. The battery is a ballast.

[@moraleswarnold]

Wow. Amazing outcome.

[@chunkstar121]

your 3d printing skills are off the charts!

[@mickyb.8014]

I'm still blown away by just how cool 3D Printers are!!! I'd love to have one, maybe one day I'll be able to afford one, they must come in super handy when deciding to build your own e-bike and doing various other fun projects.. 3d printing is amazing. Well on you for building one helluva an e-bike, I bet it's a tonne of fun to ride!

[@GaiusGarage]

Thanks so much! yeah 3D printers can be really useful. you can pick one up for maybe $150, although the less expensive ones can be a bit more frustrating to use

[@mickyb.8014]

@@GaiusGarage Hi there, Thanks for replying (most don't lol) I was wondering if you could help me with a problem I got... I bought a Sabvoton 7245M Controller (£180) and when I tried to connect it up to my Voilamart Kit when I twisted the throttle the damn wheels were spinning at the same time, which terrified me so I ended up putting the stock Voilamart controller back on and shunt modding it... Thing is I really want to somehow get the Sabvoton controller working with my bike, I tried to connect it to my phone using the USB lead but it said it wasn't recognizing the connection - as I figured I'd have to run a set-up test before I could get the controller working correctly with my e-bike build, which is a Voilamart rear hub kit 1500w48v with a 52v20ah battery... I'm now looking at ordering a Sabvoton Bluetooth Dongle (£40 from eBay) as I'm thinking this must be the right thing to do so I can get the controller working with my bike.. Do you know if the Bluetooth dongle has to be specifically for Sabvoton? As £40 seems a bit much for a damn Bluetooth dongle, I mean if it's my only option I'll pay it, but it's just got me wondering..? All I want really is more torque power as my current setup does 35-37mph tops I just want it more powerful hence the reason I bought the 7245m controller as the stock Voilamart controller is only 30amp I'm sure... I just don't get why the peddles were spinning when the rear wheel was, I'd been careful to get all the wiring done correctly.. I installed the MCQON app on my mobile too, I'll have to get the Bluetooth dongle as I don't have a PC so I'll only be able to use my phone to programme the controller. Just wondered if you have any experience using a sabvoton 7245m controller with the Bluetooth dongle etc? Cheers, and sorry about such a lot to read, I hope you can understand roughly what I'm trying to put across.

[@GaiusGarage]

Yes, the bluetooth dongle has to be specifically for Sabvoton. it's possible that they sell them on ebay but I've purchased mine from the manufacturer directly. I'm happy to help with wiring for the Sabvoton - please feel free to book a 1:1 session here: calendly.com/gaiusgarage/30-min-consult

[@mickyb.8014]

@@GaiusGarage Hi, and thanks for the info, I ordered the Sabvoton Dongle just half an hour ago, it should be with me by Monday (I hope). I'm guessing you charge for a half hour consultation? I should be ok with the wiring as I've looked at tonnes of info online, I've a feeling I may just need to alter the configuration of the motors phase wires, it something simple either way I'll work it out. Most likely it needs to run it's initial controller set-up routine before I will be able to alter anything. I was wondering, how much did your 3d printer cost you? I'm guessing about 4-5k (or maybe more)? I bet if I had one of them I'd have been able to 3d print some torque arms for my rear axle, I bought 2 x cheap ones off of e-bay, but I had no faith in them being of any use as they looked pretty naff to me so instead I fabricated 2 x Steel plate 5mm thick ones, and put one on either side of the rear end. Made me feel so much safer than when using the cheap standard ones (exact same ones in your vid, the jubilee clip type, I think they are pretty much useless)... I bet you've done some great projects with that 3d printer, damn I wish I had one as I think I'm gunna have to make some form of lower frame bar bracket to attach the Sabvo7245M controller to the underside of my lower frame. Thanks again, You've been most helpful, stay cool! 😎

[@GaiusGarage]

@@mickyb.8014yes, the 30 min consult is paid I also have 15min version in case you need some quick info. The option is there if you need it. 3D printer is definitely not $4-5k. You can pick one up for as little as $150. Decent one is $300. premium is $1k

[@colesheets135]

man on 50 mph bike vs pothole

[@docrx1857]

That is an awesome build. way to go man!!!

[@GaiusGarage]

Much appreciated, sir!

[@carlcadogan4510]

So impressed with this build and yes Noalox is conductive, perfect.

[@GaiusGarage]

Thank you!

[@overthebars5172]

Really incredible build 🙌. Given the awesome potential of your bike...please dress for the off chance you aren't able to keep the rubber side down. You should be leathered up at the very least. You've earned a subscriber.

[@simonleonard5431]

That is crazy. Something that occurred to me that wasn't mentioned in the video is the stress on the wheels/spokes and what happens if you need to brake hard. Seems like a maintenance nightmare. You've basically got motorbike power with bicycle tolerances.

[@GaiusGarage]

yeah, Ive had to true the rear wheel several times

[@simonleonard5431]

@@GaiusGarage no doubt. How are the brakes doing? (I know no one gives a sh*t but I'm curious)

[@GaiusGarage]

@@simonleonard5431 definitely have to change the pads more often but fine for stopping

[@simonleonard5431]

@@GaiusGarage you don't ever want that moment when you want to stop and you can't. Please 🙏 make brakes 2x power

[@HamguyBacon]

you need disk breaks.

[@rohanwallis1659]

Very dangerous but freakin awesome .. congrats on a killer build.

[@azureexoplanetary6511]

Madlad running 15kw through a hub motor with an aluminum frame. I built a bike very similar to your 52v 20ah one, same dolphin battery and 1500w motor kit... that bike had a steel frame and it was bending the dropouts on that!

[@ash0787]

thats really good I made something at 72v with maximum 45amps using well known parts and I felt uncomfortable at 38mph, so i've never found its true max speed, its a Giant Talon 3 frame and it doesn't like to corner tightly, I also find that im putting a lot of weight bearing on my hands, my old MTB was a Kona Coiler and it felt quite secure at its max speed of around 35.

[@mrkeopele]

yup, I'd hate coming off anything above 25

[@JudeTheYoutubePoopersubscribe]

My bike starts feeling sketchy above 35mph. I know it can go a little faster than that I've had 38 or 39 on a wide quiet road but nope on a mountain bike that just ain't safe. I electronically set the top speed to not exceed 30 and I'm happy with it there.

[@thomasroot7065]

keep up the great videos!

[@GaiusGarage]

Thank you!

[@lindeermig]

just bought a 2800w e-scotter and its nuts..... this bike is just out of this world bro.

[@thetruthz13]

Great knowledge, skill and humour! 😂 3D printing fabrication was awesome

[@GaiusGarage]

Thank you!!

[@Stigvergnuegen]

I'd extend the torque arms to attach well above the top dropout weld. The higher on the the seat stays, the better, as it gives you more leverage.

[@edoardoagostini1800]

Nice build! amazing sound of the motor! ...I also built a 3kw bike full suspension and is lot of fun! but the sound of my bike is kinda ugly like a robot screaming just sometimes 😆 Im using a 1kw hub motor with a 3kw controller.. and im so afraid to burn out the motor! ...once I also tried a double hub motor bike with 2 controllers 2kw each and it was so fun cause the front wheel burst the asphalt when you accelerate cause of loosing grip!

[@jonb1131]

Good work!!

[@robertblackett2379]

That's a beast of a bike well done keep it that going

[@randominternetviewer166]

15kw is about 20HP. So similar power output to a 200cc motorcycle, but with that weight, easy backflips 😅 If you do an airial tuck, it probably do a topspeed of above 65mph, not sure though. But no gloves? Easy road rash

[@VictorFainello]

Wow, this build is terrific! Amazing 3d modeling skills btw. Quick question: how did you measure the angle between those 2 frame tubes in order start modeling around it and get the print to fit perfectly?

[@GaiusGarage]

Thank you! It really just comes down to careful measurement and enough filament to go through many iterations of adjustments

[@douglasdavidson3701]

​@GaiusGarage what hub motor is this and the watts

[@chb2live]

​@@GaiusGaragecan you send me the link to the 60 amp controller that you had

[@barneygoogles5186]

What great ideas and excellent execution of those ideas!!!

[@mvictorgroup]

I have just come across this video & 1min 39 seconds in I had to stop to say GREAT WORK AND DETAIL FROM THE GET GO!!!

[@GaiusGarage]

Thank you so much!

[@sheldoneuos]

I wish people would include a parts list with links, so people know how much it costs

[@lihppuangpet7871]

Way to much it’s like 200aud each lipo

[@MrDoboz]

if you have to ask, too much

[@jwallace2913]

Everything is listed in the description, with links..

[@howardridge1153]

A pretty basic bike but what attention to detailing, WOW, and that acceleration is mental 4-54mph 7 seconds wtf awesome well done fella you should go into business doing these kits

[@GaiusGarage]

thank you, sir!

[@theowink]

You are the airbag on a bicycle when hit the curb. (If you’re lucky) Better use a motorframe and abs brakes

[@TimeHunter2305]

Great video!!! I hope to see the same setup on a better frame and probably better wheels too so you can push it to the limit.

[@GaiusGarage]

Thanks! The tires are perhaps ideal for this type of bike but the frame is far from.. I'll definitely make a pass at an ideal "top speed" bike like this in the future

[@chumprop]

Very awesome and fun! Nice job!!!

[@GaiusGarage]

Thank you!

[@Yosomy]

Amazing 3D print work! I have made a 20Ah 13s out of Samsung 40T and looks almost the same size of your battery 😂 One question, if you created the frame 3D model yourself, how can I model the curvature of the tubes perfectly? I have an older bike ..

[@GaiusGarage]

thank you! one way you can model is with a 3D scanner but one that will give you the resolution needed is very expensive. although I've had decent luck with 3D scanning using the camera on an iPhone 13 Pro but it takes some cleanup. but the best way is just some old-fashioned tedious measuring and iterative adjustments

[@Sydney_2011]

You’re hitting almost 1/2 G. That’s so cool. From the looks of the video without feeling the power, it looks like it could hit 70mph given the right frame.

[@brianrussell6010]

Right frame would be an elongated hardtail with a soft suspension seat and foot pegs that let you get symmetrical. An aero fairing on the front wheel with stabilizing weight behind the wheel, as low as possible. Going super fast is an exercise in sheer luck unless you also invest in slowing down while maintaining control. There's a couple different ways that can be accomplished besides the usual heavy duty motorcycle rotors and hydraulic brakes. You could engine brake, spinning your motor like a flywheel. You could add another brake system like linear V brakes. The weak point of those approaches is the surface adhesion of your rear tire. If the tire skids, that's it. Let me suggest a new idea. Use your 3d printing skills to produce a set of vanes that act like an airplanes' airbrakes. Mount them on a frame that extends back behind the back wheel, and make damn sure you can brace your feet on the pegs when stopping.

[@howleh]

Way cool. Good work

[@GaiusGarage]

Thank you!

[@radicalrick9587]

*So powerful that you almost cleared the Grand Canyon when you hit a bump at the edge of the Canyon going full speed.*

[@miklosbremer3120]

You'd need an A2 motorcycle license to ride this in europe, but even then it wouldn't be legal because it's homemade and it's not registered

[@greghubbard2719]

Mind your own business nerd

[@valtarijunkkala]

Homemade is okay I think, there just isn't a way to get this registered because it doesn't meet like *any* of the safety requirements.

[@fuxseb]

​@@valtarijunkkala To use such vehicle on public roads in Europe, you will need a motorcycle driver's licence which is completely separate from the one for cars, registration (with plates), a roadworthiness test, and a compulsory third-party liability insurance. It's effectively the same as a DIY motorbike or car. Near impossible for a natural person. So no, homemade is unfortunately not ok.

[@valtarijunkkala]

@@fuxseb Well this is literally, accoring to law, A2 class motorcycle and you will ofcourse need A2 license to drive it. as far as I can tell, reading from Finnish authorities websites, you can get a homemade vehicle registered. So, DIY is ok. However, as I said, this bike doesn't meet any of the safety requirements, for a A2 class bike, and so this specific bike isn't going to get registered. My whole point was that being DIY is not a problem in of it self.

[@murkymurph8355]

What your mom does is none of my business 😂😂😂. Great video man, appreciate your work. Great attention to detail and foresight.

[@GaiusGarage]

Thank you, sir!

[@mark2jzsupra749]

nice push it to the max. great skills you hove. take it to the moon push the boundaries. great video subscribed for more of yoyr crazy skills

[@Feadds]

Dude . YOUR INSANEEE ❤️

[@1ute]

Brakes are not strong enough for this speed

[@ambiguoustvreference835]

20 hp e-bike 💀

[@tomheater6149]

Kudos, I hope you have great success and future!

[@GaiusGarage]

Thank you, sir!

[@observingrogue7652]

Great job. If the torque is too much for you, if you're worried about the dropouts & frame, if the motor is overheating, and or that controller isn't very programmable. You can pass the throttle through a Cycle Analyst V3 from Grin Tech, instead of directly to the controller. When reducing the maximum current, there is a linear relationship with torque and Amps. I'm so excited to overvolt motors knowing this. The only limit is how much speed the bearings & motor can handle, before friction & centrifugal force rips it apart, and how much voltage the winding insulation can contain. I understand a hardtail frame has a lot of space for components, but I would never run a hardtail or rigid bike with even half this power. Especially with the garbage roads in my area. This is why I'm looking for full suspension frames, that look like roadbike frames, but the shock is built into or just under the top tube. I've seen frames like this. But I'm looking for 29er frames, because in my search for bicycle wheels that will fit motorcycle tires, or bicycle tires with a marked load & speed rating. For now, I've settled on e50 700c tires, on 700c hub motors, in a full suspension 29er frame & fork. The stealth of a bicycle, can just walk it into my apartment, but the most acceleration I can have up to 50kph, what those e-bike tires are rated for. And those narrow tires will be so agile & efficient. I'll live with this until I can convert a gas motorcycle. Thank you for this video, it was very helpful.

[@mrkeopele]

yup, I'm with you, full suspension full size frames, why are all the frames BMX size now???

[@caogomi]

shit this sounds amazing... Any chance you have a blog or youtube channel yourself? I know very little coming into this, but it really does seem like you can build a long range mostly throttle, good torque (for hills) ebike and not only save but customize it easier.

[@eXTreemator]

​@@caogomii can build a better than on the video, if someone prepared to pay. But it's all starts with modest budget of a surron

[@caogomi]

Like it would cost you that much to build? I was just thinking in terms of diy, and some custom machined parts perhaps being able to make something super nice yourself with good torque and range. Nothing crazy or fast, but something even a larger person on a bike could get 60 miles and tackle some steep hills without dropping too much speed. @@eXTreemator I think it was just nice to see things like this can be done, and safely.

[@eXTreemator]

@@caogomi every nice thing cost money. Yes it's not free. All nice components cost money as well as labour. And custom machined parts take it to another level of cost. People want the best but done want to pay for the best

[@wildaviation5528]

What's craziest to me is that those lads in the Tour happily go over 110kph (about 65mph) downhill mountian passes in lycra with no suspension. What's crazier still is that with just their own power they can get up to 80kph (50mph) on the final sprint! Look what us mortals must do to match just a tiny fraction of their power!!!

[@xJayteee]

Yuyangking are quite popular for their high voltage , high amperage controllers, bluetooth capability and dirt cheap prices. They used to have a 120v 250amp watercooled version too that I had on my stealth and it was crazy powerful. Sadly to say , as of today , the 150amp and 250amp variants are no longer produced .

[@hockysa]

That seems so exciting but also scary.

[@Thingamajigs]

Awesome stuff. you're fortunate that the road you're riding is smooth too. If you were unlucky enough to hit a pothole that bike would be toast, along with you. Even at just 20/30mph it would be pretty bad.

[@timothyhendricks3004]

It is very common to go 20mph on a bike.

[@Thingamajigs]

@@timothyhendricks3004 still serious to hit a pothole at those speeds. hitting one at 50mph+ is most definitely going to be life threatening.

[@seitenryu6844]

Yeah, maybe not so bad on the low end, but it still gives you a good scare. I've had that happen while riding, and if I hadn't seen it I'd be missing teeth. At 50mph though? That's full face helmet time. Done around 50mph on a giant hill once, normal road helmet, scary and fun for sure.

[@EVGizmo]

Your content is amazing

[@SaItyStudios]

It's orgasmic the amount of technology these days truly awe-inspiring

[@bgd73]

that is amazing. Sur ron gets going, but it is alot of heavier. these bikes are very new in my area.. I get approached all the time with a regular fat tire, top speed 31mph. Its as if to be awe inspiring...

[@manicmods]

Love your incorporation of 3d printing! My 1500W DIY does 40mph and scares the hell out of me, so cannot imagine this 🤯 Nice work man 💪

[@GaiusGarage]

Thanks! yeah this bike was pretty sketchy

[@rivercloud33]

That's incredible

[@prmcollin]

I had a Marin Fairfax SC3 gathering dust because of the Seattle Uphills. My uncle’s mountain ebike inspired me so I got the Bafang 48/52V 1000W crank motor kit. My wife got a Rad bike. Long story short, I ended up building her a bike using a Costco mountain bike. Her 7 speed and lighter body weight kicks my ass until a long stretch. 30-35 on flat ground no problem. I assume hub motors are good for solving the derailleur/cassette annoyances.

[@GaiusGarage]

yeah mid-drive conversions are hard on the drivetrain for bike. but hub motors are hard on the dropouts. basically, conversion are best when they are relatively low power. the higher power stuff is best for steel/custom/purpose-built frames

[@rosskrt]

Damn! This dude is actually fearless going 90 kmph on a bike. Props to him.

[@MrElapid]

Fusion 360 rocks... With this and a good printer all sorts of cool things are possible. Great job! I went with a stealth bomber frame but not at your power level. 3000w. gets me around ok but your vid. inspires. Rock on!

[@GaiusGarage]

Thank you! yeah bomber is the way to go for a solid hub motor bike. I have a stealth bomber build on my channel also

[@MrElapid]

I'll check it out. Would be tough to break the frame! Heavy but fine with me... Also the long wheelbase makes it stable. I worry about Aluminum, it fatugues. It doesn't have steel's elasticity. Stress cracks happen so please be careful? Just something to consider..​@@GaiusGarage

[@bentravis99]

Awesome!

[@pauli2951]

How does this video and you channel not have more views and subscribers? Amazing stuff.

[@GaiusGarage]

Appreciate it man! I'm working on posting more content, which I think will help it grow

[@nhanha7433]

So forth so good.

[@samteks125]

impressive craftsmanship. also surprising you didn't wear the mentioned leather, I certainly would want to with an experimental vehicle like this😅

[@thomasferris3750]

Im looking to build myself an ebike i can go from town to town for work, ebike cheaper than car and i wont need ti get far often but the capability would be great, this is a good vid

[@xrxfpv1994]

That is awesome ❤ After a year, ever put it on a Dyno?

[@loosenoose]

You should get some road tires on there. That'd be a lot safer. Maybe consider some good gravel tires as well. That'd give you some little knobs for off-road, while making the street riding a lot safer than the straight up dirt tires. If you convert to drop bars or the surly corner bars, that'd help keep your upper body lower and out of the wind, giving you a higher top speed

[@GaiusGarage]

These maxxis tires actually are dirt tires rated up to 80psi - they actually wouldnt even be very useful off-road. got them specifically for this purpose. low handlebars would definitely be the way to go as well

[@adler3008]

Awesome build! Maybe Try using a Vesc controller since they are smaller and have FOC

[@jimbenjamin5992]

You are a mad genius and I love it ❣ Do you have an update about the bike?!

[@GaiusGarage]

Thank you! I sold this bike a while back. From what I know it's still in use with the new owner

[@jimbenjamin5992]

Thank you for the update 👋❤@@GaiusGarage

[@Ben-rj7xs]

You should try to move some of the weight of the batteries to the front of the bike it will help to keep the front of the bike down to the ground

[@ymgaming9976]

Dude might as well start his own bike factory

[@dkremeni633]

Hi from Croatia, where Cromotor is made :), i had 72v 80A controller on it, but had a chance to try 100V 120A 12kw, and it was insane, full throttle could barely hold on to it...(ad no experience before it)

[@Coldlegend214]

you're insane! I love it!

[@nathantitusthomas3554]

Nice biceps man👍.

[@iamnotyourmate]

This dude is amazing

[@pnewt3378]

Wondering how the build has held up, I did basically the same build around the same time you did this video, I've been completely satisfied with it

[@GaiusGarage]

I've sold it since but it held up well until then. the epoxy bonding the dropouts did eventually fail and needed to be redone

[@simonallan9941]

Thats awesome 👌 a 20hp bicycle 🚲 I thought my moped (80's Raleigh 10 speed) was wicked cool with a 10hp Suzuki motor lol being 27kg. My only limit from my top speed reached of 85kph, was scetchyness and not knowing how much higher my engine was happy to rev, but it was much happier going uphill with front wheel feeling light as I passed cars going up the steep gorge, and I'm talking about only 7kw + .5

[@Pellagrah]

IMO the higher speeds and stresses of the more powerful eBikes really demand a steel frame, especially in an area with bad roads. Only issue is that steel frames are a lot harder to find on anything that's not a touring bike.

[@vinylmodsmanitoba]

Or idk... A fat tire bike? You can easily get those with steel frames

[@ZombieFartDev]

with that much battery and controller you need another motor on the front, it will be an entirely different beast then and capable of offroad

[@bigstreetguns6619]

Mate this needs more power. MOAR!

[@alexsjodin4561]

Dude...! Thats some refreshing insanity...😂😂👊💪

[@mikey4103]

just subbed ......awesome job i would be intrested in this as a full kit for my mtb.............great skills ...nice job from uk wales

[@GaiusGarage]

Much appreciated! Would be great to offer as a kit but the 3d printed mounts are so specific to each frame. I think when it comes to ebike conversions, diy is the only viable solution. Cheers!

[@user-gy2zj9zk2p]

You need to mount that set up on a fat tire recumbent trike. i bet that will be the ticket.

[@DigitalJedi]

Nearly 2x the power of my cargo bike build god damn. I have a 72V 8kW mid drive to a slim motorcycle tire in the rear with a proper chain. It's a bakfiets style bike which means it handles like a yacht and being a steel frame it uses a lot of that power just hauling its 100lb self and 200lb rider up to speed.

[@nexgen-3d-printing]

Awesome work and use with the 3D printer, you should try some some good quality PA-CF for some these parts, but I also recommend a good 97 SHA TPU as its shock/vibration dampening, and is nearly as strong as cast/moulded thermo set Polyurethane, after watching this a few other vids of yours, Im subscribing :).

[@GaiusGarage]

Thanks! Yeah Ive started printing with PETG-CF recently - really awesome stuff! Didn't know about 97 SHA TPU - definitely gotta check it out

[@nexgen-3d-printing]

@@GaiusGarage Yes PETG-CF is quite nice, prints easily on an open printer like yours and has enough flex to survive the hard knocks of EMTB, I use standard PA-CF as its also very flexible and can withstand the odd crash :) I use PA-CF for mounting things like display holders, phone holders, light brackets and even mudguards, but PETG-CF would also do the job, not quite as durable but still good enough, I make all sorts of other gear for race bikes like pouches and toolkit holders out of the TPU, and will be the best material for custom battery packs and controller mounts.

[@GaiusGarage]

@@nexgen-3d-printing why do you think TPU would be best for mounts? Isn't TPU flexible - a good mount would be strong and rigid. I've been using PETG-CF for structural mounts lately and PLA plus for non-structual anesthetic components, since it's easier to achieve very smooth surfaces without sanding with PLA vs. other filaments

[@nexgen-3d-printing]

@@GaiusGarage TPU acts like hard rubber, if you look at some of the electronics you removed from the KLR Ill bet some were mounted to the chassis in rubber, usually 60 SHA or harder, isolating electrical devices through a vibration dampening mount will help prevent damage to them, 97 SHA TPU is flexible but its not soft, and its far stronger than plastic, its heat, chemical, UV resistant as well, the eSun Black TPU is really tough, give it a shot, and the 83 SHA TPE is really good for making water tight gaskets or vibration wraps for metal clamps etc.

[@GaiusGarage]

@@nexgen-3d-printing I see. that's a good point about vibration dampening. Thank you for the feedback! I will definitely give some TPU mounts a try - maybe replace some I've already printed for current projects.

[@mickwolf1077]

you definitely want a tracksuit on when you unleash the beast 😁

[@philliplucion4262]

What really walks people is going by them pedaling backwards the look on there face 😅 great build bro love the bike

[@lukewalker1051]

Respect for your talent. Well done and thanks for sharing. Why did you build it? Because you have the skill and wanted to. Ride safe.

[@GaiusGarage]

Thanks! Yeah basically lol - just though it would be fun

[@jamessever8936]

I bought one of those controllers but never used it. Is the throttle response torque based or speed based?

[@philflip1963]

Put a faring on it and mount the battery and controller from the headtube to keep the front wheel from lifting.

[@Sid-lk2gq]

you definitely needed a full adidas tracksuit LOL, insane bike man, really well designed

[@GaiusGarage]

I do own several & thank you!

[@ConsoleCombatant]

Amazing