@shawn McCoin bruh how much do you think it weighs I'm pretty damn shure this man can pick it up, in fact he lifts it off his bench around 18:20 and any ways you don't even need to pick it up just push it back with ur feet
Yeah true but since electric motors can spin either way its just so easy to add reverse and the speed controller has two wires for reverse so all he needs is just one switch to make it reverse which he might as well do cause it's so easy
If you're after a bit more torque, open up that speed controller and look at the board. There should be a shunt resistor, in the form of a small bare wire (or two or three) about half an inch long. Beef that up with solder or an additional wite (if there's two, just join them together with solder). It'll fool the controller into thinking the motor is drawing less current than it is, and permit it to draw more. You'll be amazed at the difference!
Cool little project bike, simple and easy for the avg Joe to throw together. But it is way overpriced for the tech it uses. I've built a few electric motorbikes over the years (currently in the middle of a streetfighter build if anyone's interested in checking it out), so I'm going to share some helpful advice for anyone who can be bothered to read the novel below and clear up some misconceptions regarding cost vs benefit. This minibike, as cute and torquey as it is, is the sort of thing that's marketed to people none the wiser - no offense. I know you know it's too expensive too. BUT, you could have cut the cost nearly in half if you shopped around more and asked experienced ev builders a few questions about ev drive systems and suppliers - it 'could' be paying for itself in fuel cost savings if you had. You mentioned ride time and you're right that the longer you can go without refueling the better. Common sense. An hr isn't a long time unless it's just being used for avg daily commuting (most people only drive ~45 km/day on avg anyway). But for the right price a person can double or triple or quadruple their fun on an ev. Fuel cost and efficiency play a much bigger role in determining practicality and whether or not there's a benefit to building an electric bike with a battery large enough to suit a person's needs - one drive system is >90% eff, and the alternative (gas) would do really good to reach 35%. Gotta work that math into the equation too. That's a significant difference in km's driven per kWh of energy input, ie: fuel costs. The tech to suit your needs already exists, you just have to do a bit more work with the calculator to see the benefit, which I will do below. Speaking from first hand experience that battery has very saggy cells and the build quality is sub-par, that's why it takes 4-5 hrs to charge. It can't handle any more than a 5A charge current. I made the mistake of buying a couple from the same seller and connected them in parallel to increase the range for one of my first builds, and opened it up out of curiosity. Not a good site. Uses stacked cell packs which are easy to assemble but they're easily punctured and the only protection offered is a thin sheet of plastic wrapped in gorilla tape. Cut it open, see for yourself. If the packs were LiFePo4 then there wouldn't be a danger - you could drive a metal bar straight through and the most that will happen is a bit of smoke will roll out and the pack might expand a bit under heat, but it won't explode and rip you in two. But it's Li-ion, completely different story. I don't buy parts on Ebay anymore specifically because of that guy, sometimes aliexpress but only if it's factory direct. Always buy direct from the manufacturer whenever possible, more and more recognize the value of online marketing and are making their products available to the gen public instead of relying on the middle guy who's just going to mark up the price and be a pain in everyone's ass anyway. You could have had 1.5X the battery capacity with level 2 charging ability and much higher current draw rating for roughly the same cost if sourced from a reputable manufacturer like Grepow. Heck, I'd go so far as to say you'd probably be further ahead if you had built your own battery out of used cells - at least then they could handle the current input and draw that one would expect. Total cap of the battery you used is 1.7 kWh. Cost is $546 (plus $100 for shipping to me but we'll ignore that). That's $321/kWh. You could have gotten the same capacity with the same saggy cells but new from Battery Direct on aliexpress or a number of other suppliers for at least $200 less. If you're paying much more than ~$200/kWh for basic lithium battery tech, then you're being swindled. Could also have a 10 hp QS 273 motor & controller kit with 20 peak hp, 120 kph top speed and >100 ft/lb of torque direct at the wheel with no gearing at all from QSM for what you paid for the saggy batt and 2 hp mid drive. Let's say you paid double what you did for a top quality battery, $1900 total for a complete 10 hp drive system for a new custom bike. You'd still be getting 5X the power for 2.5X the cost of the mini bike, and it would still be $2k cheaper than buying a new Honda dirt bike, and indisputably comes with a lot less headaches and maintenance costs. As far as mileage goes, I don't think you mentioned how far you can travel per charge, but I know that my 72V/4.3 kWh battery from Grepow will last for up to 100 km's on my 200 lb 10 hp bike, ~80 km if not drained to 0% cap but stopped at 20-25% and is charged properly to ensure a long life (this will mean the difference between a battery lasting 2 years or 8 years). If I didn't have a home wind/solar power system and charged the battery with the grid at a cost of 12¢/kWh, it would cost me 4.3 x 0.12 = $0.52 to fully charge it (in less than an hr, btw). Cost per kilometer would be 0.52 / 100 = 0.005, barely half a cent. An equivalent gas powered bike (150-200cc) would avg around 60 mpg, or 26 kpl. There's 9 kWh in a liter of gasoline, which costs around $1/L here in Canada. Energy input per km driven on said gas bike would be 9 / 26 = 0.35 kWh. Cost per km would be 1 / 26 = $0.04, almost 4¢/km to drive a 150cc gas powered bike vs 0.5¢/km to drive the same size electric bike. That's the difference in efficiency between the two drive systems. That difference means daily electric commuters would save 3.5¢/km, or $1.56/day based on an avg 45 km driven each day, or ~$47/month, $560/year. If they spent $2K to build the bike with an electric drive system on a pre-existing frame and suspension, then it could potentially pay for itself in fuel cost savings in 2000 / 560 = ~3.6 years. 7 years if they build completely from scratch like I did. Or roughly half of that if a person drives 90 km/day with the 100 km available to them per charge instead of just 45 km/day. Can't say the same for gas. With those kinds of savings, it might be worth while to spend a little extra on the battery and add another 100 km's or two to its range...assuming a person has the $ to spend upfront. That's the kicker for most. Electric is far more fun (when not designed with a weak 2 kw mid drive motor lol) and more economical to drive long term, but a gas powered vehicle comes with a lower upfront cost that makes it easier for the avg Joe to start driving, but screws them royally the entire time with lousy torque, poor efficiency and the subsequent high fuel costs. Kind of like debt. The convenience of borrowing what's yet to be earned might seem like a good idea at the time, but you're going to pay a hell of a lot more for what you want in the long wrong and quite possibly be stressed out the entire time worrying about the cost of owning it and being able to afford to continue with the insanity.
Wow you were right, that was quite a read. It was also hugely informative and very well written, its very clear that you have a lot of experience with electric motors. It'a a shame in some respects that this has to be the shortest build that Chris has ever done because the knowledge you have imparted with your post could have made the difference between a expensive fun build and a less expensive but even more awsome build, but your 'novel' is definatly worth a thumbs up and should be a pinned comment also. Thanks for the excellent info. 👍👍👍👍
Love the build! One thing worth trying if you haven’t already. Try blipping the throttle then quickly go full throttle. I saw on a different video with a similar setup and if he did that he would get full torque instantly. When he didn’t blip the throttle, it gradually increased the power.
I'd love to see more electric projects, there is a lot to learn in the electric field, it's not as simple as just slapping components together and expecting ideal performance, you need to match your parts. Once you get a handle on it, you'll really start to appreciate and learn to utilize the torque and simplicity of electric motors, right now you're still treating it like a gas engine.
That's a killer setup for that little bike man you crushed it for best little rascal build great job!!! It's a little expensive but for camping and places that wouldn't annoy people that's a no brainer!!!
You need at least a 100 amp programmable Kelly controller or sevcon gen4 to really open that motor up. Motor can handle 3-5kw easily Chinese motors are very under rated. Controller that comes with kit really limits it
I have a video on my profile of my sons powerwheels with 72v motor like this one spanking a go cart in a drag race. 100 amp controller and have never had an issue with the motor. Sixty foot time at a 2.543 @ 47 mph. Of course we are upgrading to a 96v 12kw brushless for next season. Going for a world record sixty foot in a powerwheels next July
agree.. ! im using most of mine of these motors with arround 60A and 80V... work great and if they get to warm I just add more until its enough that the individual motor doesnt have to work as much:)
You don't have to worry about the battery, they are encased in 2mm G10 board before the heat-shrink wrap is put on. They are super tough. G10 is a fiberglass sheet usually in 1.5 - 2mm thick. They are protected very well.
This channel and Grind Hard Plm. is the only true raw Fabrication powerwheel/power sports channel on the Tube! Love watching these guys make something from noting!!
Yep as mentioned below... you only need to swap any 2 wires to reverse the motor direction. Folks in hobbies like RC Cars, Truck, Planes, Boats and drones etc do it all the time.
this motor has a sensor.. that means it has 8 wires to the motor.. 3 phase and 5 hall sensor wires.. you need to switch green and yellow phase and blue and green hall sensor wire..
For anyone interested, I made some calculations for top speed for this thing on the last video and got a result of 29mph with some estimated numbers.. here the math behind it again : Alright these kind of motors is what I do so I have some infos for you! In one of my projects I use 4 of these motors with a own Self-Build Set to get to 87kmh! (55,5mph) You currently have a size 10small Gear and a size 54 big Gear makes for a Gear ratio of 5.4 Then you do have arround 4000rpm with these kind of motors(assuming you go 60V?) You have 13 inch tires which is arround 330mm. Then we take the 4000rpm divided by the 5.4 That means you have arround 740rpm on the wheels. Then taking the diameter(in km) times pi 0.00033 x = 0.0010365 Then taking that value by 740 and after that by the 60minutes gets you to a theoretical top speed of 46km/h..!(29mph) That should be fine for the motor as long as it doesnt get heavier..! If you want to do more with these motors I can send you a set where you can attach them to any kart frame!
I have a 48v 1500watt controller on a 1000watt motor identical to the system he's using here and my gearing is 15/32 gearing and 4.5inch wheels, whats my top speed? My lead acids went around 18 tops but I'm looking to go lithium or lifepo4 eventually
I got the same motor kit a while ago for a mini atv build for my infant son hahaha. im just waiting on the tires to get mounted and itll be ready to rip, i just got the seat mounts welded to the frame tonight and im so excited. sand and paint tomorrow ready for wheels on monday
I would change one thing... Use a Lion Energy Lithium 105aH battery. These are only $699 on sale at CostCo. This is only a little more expensive but it will yield 3 times the capacity and unlike the Chinese batteries you get on eBay, the Lions come with tech support and a full lifetime warranty. Plus, they are based in the US.
Electric works great on remote control, brushless motors, lipo batteries and very efficient speed controls make for electric rc cars being absolute monsters on top speed, accelerating the whole lot. Down fall is how dangerous lipos are if they are not taken care of.
No smart person uses lipo on a vehicle anything that is to ridden though. What's more important on those is energy density which regular round cell lithium ion excel at. LiFePO4 is second place and very safe. I have a DIY ebike that tops out at 35 mph without pedalling and faster if I can keep up. With gears it is a beast and it is 48v using 130 lithium ion cells is a 13s10p config. It has never left me stranded yet.
esqueue my dad tried turnigy lipos on my lil bros oset a few years ago. Lasted way longer than lead acid. And more power. It was four 3000mah 3 cells, in parallel with 4 3000mah 6 cell lipos. Worked great.
Excellent build! Very stealthy. You could go belt drive and make it even quieter. 35 mph is plenty fast for that little frame. You can’t compare it directly to a 6.5 hp gas engine. it’s just 2.5 hp
2000 W IS 2.42 HP, YOUR SETUP IS PERFECT INCLUDING YOUR GEAR RATIO, YOU HAVE GOTTEN ALL THE BEST OF WHAT IS AVAILABLE TO THE PUBLIC, ALL THE CHOICES YOU MADE WERE ALL THE SAME AS I WOULD INCLUDING THE THROTTLE DISPLAY OF POWER LEFT BECAUSE THE VOLT METER CAN'T BEE SEEN IN DAYLIGHT AND CALCULATING VOLTS/POWER LEFT AT 35 MPH IS USELESS. MOST PERFECT END RESULT. I HAVE 13 E-SCOOTERS/BIKES I HAVE BUILT MYSELF FOR ALL MY NEEDS, GOOD JOB!
You might fall in love with not having to mess with liquid fuel, oil, intake, exhaust, choke, carb adjustments, idle adjustment screws etc.. etc.. etc.. It's all a trade off. Loose the top end speed, and raw HP/dollar. Get a completely different system with completely different benefits and weaknesses.
OK. I know nothing about engineering. I could barely get underpants on right on a day to day basis. The reason why I love this channel is the backyard ingenuity
Awesome project. This bike deserves a 100A controller and 120A BMS and a lower gear ratio. This motor is very capable but the Controller and BMS can supply the amps the motor can handle to go faster
You should work with GPS to develop a kit (sort of like GHPC's PW Kit) for this project. Yes the whole cost would go above $1000, but I bet it would still be a good seller. And if you got a commish off each sale >>> $$$! 👍👍👍
Man that's a lot of wires to send power to only 2 wires to a small motor to make a single tire spin, you got to love mechanical engineering lol..... love the channel keep up the good work and keep them video coming...
3m makes 3/4 inch high dense peel an stick foam about 1 inch wide rolls. But nice job man an yea depending on how hot the bat gets put a small computer fan sucking the hot air out an keep the fin vents as well. Again great job an great vid
Correction*** after watching your video... its safe to say that top speed is 25 mph on a straight road with your weight. You didn't do 30 anything on a straight road without downhill momentum. Great video, awesome build. I just wanted to give the viewers reality when they are watching this... so they don't think they can do 35 mph with this set up if they weigh what you weigh. Keep up the awesome work!
I really enjoy the 'hi-tech' approach... rBw: "Hmmmm...how can I hold the sides in position while I weld them?..." old bricks: ' Yo!!!!..." lol ...and THEN, you were asking about suggestions for color, and to my mind, there 'could be only ONE!' ...Candy Apple Red!!, twenty layers deep!!! Oh, yeah, your eyes fall INTO that depth of redness!! lol ... the thought flashed through my mind, and then you said : 'Red Metallic'.: CLOSE ENOUGH!! lol... Great project! Listen to an old dinosaur, who literally got started in dirt-riding on mini-bikes with those simple double-loop frames, with a 3, 4 or 5HP Briggs & Stratton, or Tecumseh engine... So help me, EVERY GUY , deep in his heart, LOVES mini-bikes!!!! ...the ORIGINAL pocket-rocket!! (yeah, to any guy reading this, you too!!... ;) ) Thanks for sharing !
One thing you will notice over time.. if its a nice day and you just want to get out with some vehicle to have a good time the electric one will just work, wont have problems for standing too long(as long as you dont forget to keep your battery charged) and not annoy anyone..
Three phase motors, flip the outer two wires and thatll give you the opposite direction. Works the same was as rc cars :) not done with video but figured I'd post.
I was listening to that thing you did there at the end- the gas vs electric debate; I think you miss those warm, human moments with your loud neighbor! Here is a gas light for you! I'm a motor head- I was done when you took away the loud!
Get some hard plastic blocks on the bottom and up towards the top as wedges.then slot the sides in the back for ventilation cuz in the radical discharging of the battery will get very very hot
I got this same motor, control box etc a while back to build an electric go kart for my son. I’m letting him design it and problem solve etc. I have built a few gas powered karts and got this electric set up specifically to just teach him real redneck engineering and so his first kart build would be slower, entry level. You know like a lime or razor scooter. It was at this moment I knew I had just f**ked up! It’s a super light 1 seater go kart, and he’s 7 but a late bloomer and looks like Simon Birch!! Hell, I can pick the entire kart up WITH HIM IN IT with one hand. I do bicep curls with him in it because he thinks it funny. I am just now realizing my god this thing will be scary fast!! Lesson 2…. A really strong roll cage!
You should look at Nissan Leaf projects. If you can figure out a way to put one of the battery packs in 150hp. You can get wrecked ones pretty cheap but still higher budget than your usual projects but you can always sell the drive-train after filming or sell the project if it worked. Lots of new stuff to learn, wait until you get bored of 4 strokes.
I have the same motor kit that you used and I have the same problem with the motor being backwards, was wondering if you could forward the video you used to fix it or try and explain how it works. Thanks!
Yes, the electric version is more expensive, if you only look at the upfront cost. I've heard gasoline is incredibly cheap in the US, but here in Europe you're going to get a far better cost per kilometer traveled by using electricity rather than a combustion engine, once the initial price is amortized. So if that one hour of drive time is enough for you, and the four hour charge time is not a deal breaker, I think electric is a viable option. I definitely see why gasoline is more fun though! ;)
going from 48v to 60v would add another 8-10mph as well. Same goes for the bump to 72v. At that point you would have to tune the throttle reponse to prevent it from doing burn outs or tossing you off the back every time you started from a stand still tho xD
but the Controller propably has MOSFETS rated for 60V going above that is dangerous because the controller can fail if its above rated voltage.. if he had a 72V controller sure :) i use this kind of motor on 80V and 60A
Rubber inner tube cushion at about twice the thickness could be a viable application while anchoring the battery down and against the side plate and/or the box side cover; plus a battery tray at the bottom. This would be an old school means or answer, plus the old rubber battery strap with S hooks! If a battery issue arises for needing a cooling solution, just get back to me, I know of such a very good and truly inexpensive way to do that for about 15 bucks.
Great video, Keep it up. Those controllers control the motor by voltage instead of amperage. So it will use full power until it reaches your desired speed. Quite fun and perfect for doing uncontrolled wheelies.
I wonder if you got large thermal pads and put the battery right up against the aluminum if it would transfer enough heat to be passively cooled you could even weld a bunch of fins on the outside to help with thermal transfer
a quick tip on removing grips off a handle: stick a compressor gun in it and just blast it, that creates like an air cushion and you can just pull it off easily! :D
I seen a 20v Bauer charger on the bench what did you get and do you like it? I have the 1/4 and 1/2 inch impact plus the grinder and hedge trimmer for the money think they are pretty great don't get me wrong there is much better out there but for the money I really like what I've got so far but I did need to buy 3 of the bigger batteries for the trimmer.
Something that would be wicked cool would be to put a gas tank on it (in front of the seat) but put a circular digital battery percentage gauge in the hole where the gas tank would be to show how much charge you have left!
This is the perfect campground cruiser.
I was thinking the exact same thing.
Finally builds a project with reverse and it's small enough to pick up and turn around
lol
@shawn McCoin bruh how much do you think it weighs I'm pretty damn shure this man can pick it up, in fact he lifts it off his bench around 18:20 and any ways you don't even need to pick it up just push it back with ur feet
His go kart monster truck thing has reverse!!
that's some funny stuff lol he got you on that rather be welding lol
Yeah true but since electric motors can spin either way its just so easy to add reverse and the speed controller has two wires for reverse so all he needs is just one switch to make it reverse which he might as well do cause it's so easy
Only project of yours that you neighbor might like😂
Yeah ikr, no more angry neighbor, but he might find something else to complain about tho
Now put a train horn on it
I'm sure the neighbor will still gripe about something...
azerty ytreza Train Horn all the way that’s what the viewers need
Yeah ok he will still gripe cause he's a moron
If you're after a bit more torque, open up that speed controller and look at the board. There should be a shunt resistor, in the form of a small bare wire (or two or three) about half an inch long. Beef that up with solder or an additional wite (if there's two, just join them together with solder). It'll fool the controller into thinking the motor is drawing less current than it is, and permit it to draw more. You'll be amazed at the difference!
Cool little project bike, simple and easy for the avg Joe to throw together. But it is way overpriced for the tech it uses. I've built a few electric motorbikes over the years (currently in the middle of a streetfighter build if anyone's interested in checking it out), so I'm going to share some helpful advice for anyone who can be bothered to read the novel below and clear up some misconceptions regarding cost vs benefit.
This minibike, as cute and torquey as it is, is the sort of thing that's marketed to people none the wiser - no offense. I know you know it's too expensive too. BUT, you could have cut the cost nearly in half if you shopped around more and asked experienced ev builders a few questions about ev drive systems and suppliers - it 'could' be paying for itself in fuel cost savings if you had. You mentioned ride time and you're right that the longer you can go without refueling the better. Common sense. An hr isn't a long time unless it's just being used for avg daily commuting (most people only drive ~45 km/day on avg anyway). But for the right price a person can double or triple or quadruple their fun on an ev. Fuel cost and efficiency play a much bigger role in determining practicality and whether or not there's a benefit to building an electric bike with a battery large enough to suit a person's needs - one drive system is >90% eff, and the alternative (gas) would do really good to reach 35%. Gotta work that math into the equation too. That's a significant difference in km's driven per kWh of energy input, ie: fuel costs. The tech to suit your needs already exists, you just have to do a bit more work with the calculator to see the benefit, which I will do below.
Speaking from first hand experience that battery has very saggy cells and the build quality is sub-par, that's why it takes 4-5 hrs to charge. It can't handle any more than a 5A charge current. I made the mistake of buying a couple from the same seller and connected them in parallel to increase the range for one of my first builds, and opened it up out of curiosity. Not a good site. Uses stacked cell packs which are easy to assemble but they're easily punctured and the only protection offered is a thin sheet of plastic wrapped in gorilla tape. Cut it open, see for yourself. If the packs were LiFePo4 then there wouldn't be a danger - you could drive a metal bar straight through and the most that will happen is a bit of smoke will roll out and the pack might expand a bit under heat, but it won't explode and rip you in two. But it's Li-ion, completely different story. I don't buy parts on Ebay anymore specifically because of that guy, sometimes aliexpress but only if it's factory direct. Always buy direct from the manufacturer whenever possible, more and more recognize the value of online marketing and are making their products available to the gen public instead of relying on the middle guy who's just going to mark up the price and be a pain in everyone's ass anyway.
You could have had 1.5X the battery capacity with level 2 charging ability and much higher current draw rating for roughly the same cost if sourced from a reputable manufacturer like Grepow. Heck, I'd go so far as to say you'd probably be further ahead if you had built your own battery out of used cells - at least then they could handle the current input and draw that one would expect. Total cap of the battery you used is 1.7 kWh. Cost is $546 (plus $100 for shipping to me but we'll ignore that). That's $321/kWh. You could have gotten the same capacity with the same saggy cells but new from Battery Direct on aliexpress or a number of other suppliers for at least $200 less. If you're paying much more than ~$200/kWh for basic lithium battery tech, then you're being swindled.
Could also have a 10 hp QS 273 motor & controller kit with 20 peak hp, 120 kph top speed and >100 ft/lb of torque direct at the wheel with no gearing at all from QSM for what you paid for the saggy batt and 2 hp mid drive. Let's say you paid double what you did for a top quality battery, $1900 total for a complete 10 hp drive system for a new custom bike. You'd still be getting 5X the power for 2.5X the cost of the mini bike, and it would still be $2k cheaper than buying a new Honda dirt bike, and indisputably comes with a lot less headaches and maintenance costs.
As far as mileage goes, I don't think you mentioned how far you can travel per charge, but I know that my 72V/4.3 kWh battery from Grepow will last for up to 100 km's on my 200 lb 10 hp bike, ~80 km if not drained to 0% cap but stopped at 20-25% and is charged properly to ensure a long life (this will mean the difference between a battery lasting 2 years or 8 years). If I didn't have a home wind/solar power system and charged the battery with the grid at a cost of 12¢/kWh, it would cost me 4.3 x 0.12 = $0.52 to fully charge it (in less than an hr, btw). Cost per kilometer would be 0.52 / 100 = 0.005, barely half a cent. An equivalent gas powered bike (150-200cc) would avg around 60 mpg, or 26 kpl. There's 9 kWh in a liter of gasoline, which costs around $1/L here in Canada. Energy input per km driven on said gas bike would be 9 / 26 = 0.35 kWh. Cost per km would be 1 / 26 = $0.04, almost 4¢/km to drive a 150cc gas powered bike vs 0.5¢/km to drive the same size electric bike. That's the difference in efficiency between the two drive systems. That difference means daily electric commuters would save 3.5¢/km, or $1.56/day based on an avg 45 km driven each day, or ~$47/month, $560/year. If they spent $2K to build the bike with an electric drive system on a pre-existing frame and suspension, then it could potentially pay for itself in fuel cost savings in 2000 / 560 = ~3.6 years. 7 years if they build completely from scratch like I did. Or roughly half of that if a person drives 90 km/day with the 100 km available to them per charge instead of just 45 km/day. Can't say the same for gas. With those kinds of savings, it might be worth while to spend a little extra on the battery and add another 100 km's or two to its range...assuming a person has the $ to spend upfront. That's the kicker for most. Electric is far more fun (when not designed with a weak 2 kw mid drive motor lol) and more economical to drive long term, but a gas powered vehicle comes with a lower upfront cost that makes it easier for the avg Joe to start driving, but screws them royally the entire time with lousy torque, poor efficiency and the subsequent high fuel costs. Kind of like debt. The convenience of borrowing what's yet to be earned might seem like a good idea at the time, but you're going to pay a hell of a lot more for what you want in the long wrong and quite possibly be stressed out the entire time worrying about the cost of owning it and being able to afford to continue with the insanity.
The motor and mini bike are sold separately. But I do agree he spent way to much on the whole electric setup.
You wrote a whole freaking book about how he should have built his bike. Impressive!
Wow you were right, that was quite a read. It was also hugely informative and very well written, its very clear that you have a lot of experience with electric motors.
It'a a shame in some respects that this has to be the shortest build that Chris has ever done because the knowledge you have imparted with your post could have made the difference between a expensive fun build and a less expensive but even more awsome build, but your 'novel' is definatly worth a thumbs up and should be a pinned comment also. Thanks for the excellent info. 👍👍👍👍
This is something I HATE saying. He is not experienced in this field of technology, so he is going to make mistakes.
120kph would be scary as fuck on that chassis lol
switch two leads on the motor
only 2 of the 3
I was yelling so hard to my monitor
@@WTGamingHD LOLOL
Immense stress
Yes you need to swap motor lead only.
In some cases but with this controller you also have to switch the hall effect sensor.
Lol, I’ll say it again, you have a lathe, milling machine, welders, grinders.... AND BRICKS FOR JACKSTANDS?!!
jk, good job on it!
If it will keep the cops from bothering you because of the gas engine laws,I will say job well done from some of us minibike lovers.
Love the build! One thing worth trying if you haven’t already. Try blipping the throttle then quickly go full throttle. I saw on a different video with a similar setup and if he did that he would get full torque instantly. When he didn’t blip the throttle, it gradually increased the power.
I'd love to see more electric projects, there is a lot to learn in the electric field, it's not as simple as just slapping components together and expecting ideal performance, you need to match your parts. Once you get a handle on it, you'll really start to appreciate and learn to utilize the torque and simplicity of electric motors, right now you're still treating it like a gas engine.
Yup, I had to do much learning then I ended up building a 13s10p battery to power my mid drive motor on my bike.
@@esqueue you should have made a video of if
Austiwawa had some good videos with electric builds. He has built a few things like a power wheels tesla, drift trike, etc.
ruclips.net/user/austiwawa
This is probably going to be the new trend in the Motorsport toy world.
That is the perfect speed and motor for that little bike! Well done cool project
Your next build should be a 4 wheeled buggy with 4 electric motors, 1 per wheel.
The only problem is that it ll cost him an arm and a leg
That's a killer setup for that little bike man you crushed it for best little rascal build great job!!! It's a little expensive but for camping and places that wouldn't annoy people that's a no brainer!!!
You need at least a 100 amp programmable Kelly controller or sevcon gen4 to really open that motor up. Motor can handle 3-5kw easily Chinese motors are very under rated. Controller that comes with kit really limits it
I have a video on my profile of my sons powerwheels with 72v motor like this one spanking a go cart in a drag race. 100 amp controller and have never had an issue with the motor. Sixty foot time at a 2.543 @ 47 mph. Of course we are upgrading to a 96v 12kw brushless for next season. Going for a world record sixty foot in a powerwheels next July
Krajzeg nope. Mine is a kunray right off the boat from China. Lol
agree.. ! im using most of mine of these motors with arround 60A and 80V... work great and if they get to warm I just add more until its enough that the individual motor doesnt have to work as much:)
Doug King that is some great information
what motor controller do you suggest? Could he simply run the 72v battery pack?
You don't have to worry about the battery, they are encased in 2mm G10 board before the heat-shrink wrap is put on. They are super tough. G10 is a fiberglass sheet usually in 1.5 - 2mm thick. They are protected very well.
This channel and Grind Hard Plm. is the only true raw Fabrication powerwheel/power sports channel on the Tube! Love watching these guys make something from noting!!
Yep as mentioned below... you only need to swap any 2 wires to reverse the motor direction. Folks in hobbies like RC Cars, Truck, Planes, Boats and drones etc do it all the time.
Yes we do
@@ronniewilliz153 Yep me too.... been doing it for years (since Brushless hot the scene anyway).
this motor has a sensor.. that means it has 8 wires to the motor.. 3 phase and 5 hall sensor wires.. you need to switch green and yellow phase and blue and green hall sensor wire..
@@Voltaic your right! I was just about to say the same lol I have this system on a razor drift cart
Awesome bike!!! All you need is 72v
The neighbour thing has become a joke by now
They will just find something else to grip about
For anyone interested, I made some calculations for top speed for this thing on the last video and got a result of 29mph with some estimated numbers..
here the math behind it again :
Alright these kind of motors is what I do so I have some infos for you! In one of my projects I use 4 of these motors with a own Self-Build Set to get to 87kmh! (55,5mph)
You currently have a size 10small Gear and a size 54 big Gear makes for a Gear ratio of 5.4
Then you do have arround 4000rpm with these kind of motors(assuming you go 60V?)
You have 13 inch tires which is arround 330mm.
Then we take the 4000rpm divided by the 5.4
That means you have arround 740rpm on the wheels.
Then taking the diameter(in km) times pi
0.00033 x = 0.0010365
Then taking that value by 740 and after that by the 60minutes gets you to a theoretical top speed of
46km/h..!(29mph) That should be fine for the motor as long as it doesnt get heavier..! If you want to do more with these motors I can send you a set where you can attach them
to any kart frame!
I have a 48v 1500watt controller on a 1000watt motor identical to the system he's using here and my gearing is 15/32 gearing and 4.5inch wheels, whats my top speed? My lead acids went around 18 tops but I'm looking to go lithium or lifepo4 eventually
@@Todd_G_FPV I'm getting anywhere between 22-25mph top speed.
That is the first little rascal build on RUclips that I actually want. I could imagine using this thing to get around town.
Finally a project your nabor won't complain about
I got the same motor kit a while ago for a mini atv build for my infant son hahaha. im just waiting on the tires to get mounted and itll be ready to rip, i just got the seat mounts welded to the frame tonight and im so excited. sand and paint tomorrow ready for wheels on monday
Faster than my Suzuki Fa50. Nice build.
Heck ya buddy that thing has done serious torque very cool
Love the genuine "yeah!" in the video. Awesome man.
Great little pit bike for getting around at a race track or any event with large grounds.
I would change one thing... Use a Lion Energy Lithium 105aH battery. These are only $699 on sale at CostCo. This is only a little more expensive but it will yield 3 times the capacity and unlike the Chinese batteries you get on eBay, the Lions come with tech support and a full lifetime warranty. Plus, they are based in the US.
Those front air slots are just the right spot for the front tire to pump water into the box. Doh!
Dude that thing is sick. I want to build one now. I just can't make the gear. Love it man. Your a fantastic fabricator
Simple and adequate for the purpose
Dimple holes for everything just makes everything cooler
Electric works great on remote control, brushless motors, lipo batteries and very efficient speed controls make for electric rc cars being absolute monsters on top speed, accelerating the whole lot. Down fall is how dangerous lipos are if they are not taken care of.
No smart person uses lipo on a vehicle anything that is to ridden though. What's more important on those is energy density which regular round cell lithium ion excel at. LiFePO4 is second place and very safe. I have a DIY ebike that tops out at 35 mph without pedalling and faster if I can keep up. With gears it is a beast and it is 48v using 130 lithium ion cells is a 13s10p config. It has never left me stranded yet.
esqueue my dad tried turnigy lipos on my lil bros oset a few years ago. Lasted way longer than lead acid. And more power. It was four 3000mah 3 cells, in parallel with 4 3000mah 6 cell lipos. Worked great.
I was literally about to build the same thing. So good to see someone do it.
Excellent build!
Very stealthy. You could go belt drive and make it even quieter.
35 mph is plenty fast for that little frame.
You can’t compare it directly to a 6.5 hp gas engine. it’s just 2.5 hp
Perfect bike for the campgrounds.
Sweet! Now add 48v headlight/taillight and horn
2000 W IS 2.42 HP, YOUR SETUP IS PERFECT INCLUDING YOUR GEAR RATIO, YOU HAVE GOTTEN ALL THE BEST OF WHAT IS AVAILABLE TO THE PUBLIC, ALL THE CHOICES YOU MADE WERE ALL THE SAME AS I WOULD INCLUDING THE THROTTLE DISPLAY OF POWER LEFT BECAUSE THE VOLT METER CAN'T BEE SEEN IN DAYLIGHT AND CALCULATING VOLTS/POWER LEFT AT 35 MPH IS USELESS. MOST PERFECT END RESULT. I HAVE 13 E-SCOOTERS/BIKES I HAVE BUILT MYSELF FOR ALL MY NEEDS, GOOD JOB!
Great fun build! But I think it needs a lockable storage box up top in front of the saddle in place of where a fuel tank would usually go.
You might fall in love with not having to mess with liquid fuel, oil, intake, exhaust, choke, carb adjustments, idle adjustment screws etc.. etc.. etc.. It's all a trade off. Loose the top end speed, and raw HP/dollar. Get a completely different system with completely different benefits and weaknesses.
OK. I know nothing about engineering. I could barely get underpants on right on a day to day basis. The reason why I love this channel is the backyard ingenuity
Tractor supply bolts are the best!!
That breakdown at the end made a lot of sense. Electric may be the future, but that doesn't mean they are the answer for everything.
Awesome project. This bike deserves a 100A controller and 120A BMS and a lower gear ratio. This motor is very capable but the Controller and BMS can supply the amps the motor can handle to go faster
You should work with GPS to develop a kit (sort of like GHPC's PW Kit) for this project. Yes the whole cost would go above $1000, but I bet it would still be a good seller. And if you got a commish off each sale >>> $$$! 👍👍👍
Thank you for the experience!
Super cool. I was thinking about doing the 3,000 watt kit on one of these
Man that's a lot of wires to send power to only 2 wires to a small motor to make a single tire spin, you got to love mechanical engineering lol..... love the channel keep up the good work and keep them video coming...
Bright yellow with black stripes
run a jack shaft with one way bearing so wen you let off gass it dont slow you down withe motor. looks fun keep up the good work
3m makes 3/4 inch high dense peel an stick foam about 1 inch wide rolls. But nice job man an yea depending on how hot the bat gets put a small computer fan sucking the hot air out an keep the fin vents as well. Again great job an great vid
Correction*** after watching your video... its safe to say that top speed is 25 mph on a straight road with your weight. You didn't do 30 anything on a straight road without downhill momentum. Great video, awesome build. I just wanted to give the viewers reality when they are watching this... so they don't think they can do 35 mph with this set up if they weigh what you weigh. Keep up the awesome work!
Great build seems well balanced.
Always love the bloopers
your videos are a great inspiration to me. I'm looking forward to more parts. greetings from the Czech Republic
Sweet little project either way. At least nobody can complain about the noise on that one lol
Nice little camp cruiser!
The battery won’t need ventilation, but the controller will
THANK YOU FOR CHANGING THE MUSIC!!!!!!!!!!!!! Finally I don’t have to mute 90% of the video because of the horrible club music
I really enjoy the 'hi-tech' approach...
rBw: "Hmmmm...how can I hold the sides in position while I weld them?..."
old bricks: ' Yo!!!!..." lol
...and THEN, you were asking about suggestions for color, and to my mind, there 'could be only ONE!' ...Candy Apple Red!!, twenty layers deep!!! Oh, yeah, your eyes fall INTO that depth of redness!! lol ... the thought flashed through my mind, and then you said : 'Red Metallic'.: CLOSE ENOUGH!! lol...
Great project! Listen to an old dinosaur, who literally got started in dirt-riding on mini-bikes with those simple double-loop frames, with a 3, 4 or 5HP Briggs & Stratton, or Tecumseh engine...
So help me, EVERY GUY , deep in his heart, LOVES mini-bikes!!!! ...the ORIGINAL pocket-rocket!! (yeah, to any guy reading this, you too!!... ;) )
Thanks for sharing !
Light kit would also be lit
One thing you will notice over time.. if its a nice day and you just want to get out with some vehicle to have a good time the electric one will just work, wont have problems for standing too long(as long as you dont forget to keep your battery charged) and not annoy anyone..
I dig the electric thing. Cool build
Three phase motors, flip the outer two wires and thatll give you the opposite direction. Works the same was as rc cars :) not done with video but figured I'd post.
You should cut a RBW logo into the box and do a red/black hydro dip. That would make the box look sweet.
Nice lil bike, man. I have two mini bikes and would like a third and make that one electric
I was surprised that a welding channel didn't fab their own frame. Looks pretty simple
Go Power Sports probably gave home the frame?
Off road version with front and rear wheel drive. Be killer.
I was listening to that thing you did there at the end- the gas vs electric debate; I think you miss those warm, human moments with your loud neighbor! Here is a gas light for you! I'm a motor head- I was done when you took away the loud!
It’s crazy how quite that thing is
and its still extremly loud in my opinion because of the big heavy chain ;D they get a lot quieter with the right chains and well oiled..
Voltaic ya chains makes crazy loud noises but still much more quiet than a gas engine
Cool project. You could look into a way to make it a 2 speed. A 25% taller gear should work great on flat land.
Get some hard plastic blocks on the bottom and up towards the top as wedges.then slot the sides in the back for ventilation cuz in the radical discharging of the battery will get very very hot
Wow! the quality of your work is awesome! Really digging this build! Awesome!
This guy has tools for anything 😂
I got this same motor, control box etc a while back to build an electric go kart for my son. I’m letting him design it and problem solve etc. I have built a few gas powered karts and got this electric set up specifically to just teach him real redneck engineering and so his first kart build would be slower, entry level. You know like a lime or razor scooter.
It was at this moment I knew I had just f**ked up! It’s a super light 1 seater go kart, and he’s 7 but a late bloomer and looks like Simon Birch!! Hell, I can pick the entire kart up WITH HIM IN IT with one hand. I do bicep curls with him in it because he thinks it funny. I am just now realizing my god this thing will be scary fast!!
Lesson 2…. A really strong roll cage!
You should look at Nissan Leaf projects. If you can figure out a way to put one of the battery packs in 150hp. You can get wrecked ones pretty cheap but still higher budget than your usual projects but you can always sell the drive-train after filming or sell the project if it worked. Lots of new stuff to learn, wait until you get bored of 4 strokes.
I have the same motor kit that you used and I have the same problem with the motor being backwards, was wondering if you could forward the video you used to fix it or try and explain how it works. Thanks!
What do you think of a little improvement on the engine? Can u put in front of a biger gear?
And some fenders for the wheels 😎
Yes, the electric version is more expensive, if you only look at the upfront cost. I've heard gasoline is incredibly cheap in the US, but here in Europe you're going to get a far better cost per kilometer traveled by using electricity rather than a combustion engine, once the initial price is amortized. So if that one hour of drive time is enough for you, and the four hour charge time is not a deal breaker, I think electric is a viable option.
I definitely see why gasoline is more fun though! ;)
going from 48v to 60v would add another 8-10mph as well. Same goes for the bump to 72v. At that point you would have to tune the throttle reponse to prevent it from doing burn outs or tossing you off the back every time you started from a stand still tho xD
but the Controller propably has MOSFETS rated for 60V going above that is dangerous because the controller can fail if its above rated voltage.. if he had a 72V controller sure :) i use this kind of motor on 80V and 60A
Be cool to throw an exhaust fan on the battery box just to keep that nice battery comfy
Rubber inner tube cushion at about twice the thickness could be a viable application while anchoring
the battery down and against the side plate and/or the box side cover; plus a battery tray at the bottom.
This would be an old school means or answer, plus the old rubber battery strap with S hooks! If a battery
issue arises for needing a cooling solution, just get back to me, I know of such a very good and truly
inexpensive way to do that for about 15 bucks.
Great video, Keep it up. Those controllers control the motor by voltage instead of amperage. So it will use full power until it reaches your desired speed. Quite fun and perfect for doing uncontrolled wheelies.
I wonder if you got large thermal pads and put the battery right up against the aluminum if it would transfer enough heat to be passively cooled you could even weld a bunch of fins on the outside to help with thermal transfer
a quick tip on removing grips off a handle: stick a compressor gun in it and just blast it, that creates like an air cushion and you can just pull it off easily! :D
Aluminium is great heat sinker, plus You can put cpu fan in box
Awesome comparison
I seen a 20v Bauer charger on the bench what did you get and do you like it? I have the 1/4 and 1/2 inch impact plus the grinder and hedge trimmer for the money think they are pretty great don't get me wrong there is much better out there but for the money I really like what I've got so far but I did need to buy 3 of the bigger batteries for the trimmer.
Something that would be wicked cool would be to put a gas tank on it (in front of the seat) but put a circular digital battery percentage gauge in the hole where the gas tank would be to show how much charge you have left!
Very cool build 👍
Also a light weight cover for the motor which it's purpose will be to protect you from the chain if it happens to break just another thought
That would be a blast in campgrounds
I'm looking at doing the same build. What gears you running and what top speed are you getting out of it?
I would move the battery shims to the top, because you don't want the wires to chafe. Some padding would be good for the battery too.
Would you recommend this brand of battery for my rascal electric minibike project?
I think the battery compartment should be painted black or red. Love the ideas for electric projects btw!
Hi do you think this set up would work on a 26 inch wheel and what would you recommend for gear and sprocket ratio?
Couch cushion foam works great for insulating battery's
I used to have a little razor electric crotch rocket and it sounded just like that. This is pretty rad