DIY ebike that's Front Wheel Drive with Gears [500 watt DC motor] chain drive
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- čas přidán 4. 06. 2022
- I made a front wheel drive ebike using a 500 watt DC brushed motor, I'm also using gears! 6 speeds on the front of the bike I'm not sure if anyone has tried the gear thing yet but the idea popped into my head so I had to try it out. I converted a scarp bike into a FWD ebike the only new parts were 500 watt DC brushed motor, 24v 500 watt controller also two 10 Ah batteries rough cost about 112$ USD. So why even do this when you can just use a BLDC hub motor? so here's why, the main reason was cost hub motors are way more expensive where I live but prices are all over the place and I only buy DC motors if the price is decent also I like chain drive. In some places you can buy hub motors new and used pretty cheap also lithium batteries so go with a hub motor than. I do not recommend building this, if the chain comes off and goes into the front wheel you know what will happen, you may become supper man and fly over the handle bars, but your landing wont be so graceful.. If you want to try this out please read, first off the lowest gear on the cassette on my wheel is to small for this motor it will only assist you up a hill with that said it might be just my week controller or battery combo but I have feel even with stronger controller and batteries it wouldn't make a huge difference. I suggest not using the gears, the motor comes with a 25H pinion it would work better to use a larger 25H sprocket like 80t on the wheel and just one single freewheel bearing for the sprocket. It might not go as fast but would be way better I prefer torque over top end speed.
Motor and controller and batteries were sourced from Amazon sorry I don't have links right now.
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![Homemade Electric Bicycle Overvolted from [ 24v to 36v ] this is what happened](http://i.ytimg.com/vi/v-ojXSVTsC4/mqdefault.jpg)
I'm truly shocked how few people take the time to watch these but thanks for taking the time to make them :D
Thanks I really appreciate it 👍I'm glad you enjoy my content, comments like this gives more encouragement.
Yeah, Your channel should grow tremendously. Fantastic content. Why do it the easy expensive way, when you can do it the fun cheap way and learn something too?
Fr right
i like how you used a rear wheel with a multi cog cassette with the freewheeling option, looks smart easy effective fun, thank you
I love it!!!😂
I have been wondering about doing what you have accomplished!! Thank you for your help 🙏
Nice build 👍🔧
God, you make such wacky stuff, it's epic
Hell yeah bro! Mad props! As @aaronthedude said, probably few people can appreciate this, especially how you fabricated that sprocket, but that's just the world we live in, sadly!
Thanks bro 👍
Dear Kurt:
These are good videos and also good explanations.
Your creativity is great!
Builds with hubmotors would be easier, but you go the harder way and like the challenge.:-)
Also front motor with gears is complicated. You show how it's done.
I am curious of the speed too. Still awesome even if it was only 5 mph but it seemed you were moving pretty fast.
Let’s go another banger and on the $115 electric bike how fast do it go in mph thx
I was wondering about rideability issues. Seems excellent! Thanks for doing this project. Really like the idea
Also upgrade the output sprocket size for more top end!
What sprocket did u use on the motor. And chain
could you build this on the back wheel and have no pedals?
im very curious for a propulsion variant targeted for hi speed with only a 250 watt e-scooter electronics. like, can we repurpose ecooter junk to make hi speed stuff ?
What sprocket fits on my1020 motor but runs a bicycle chain? I need this to finish my latest project
Have Milwaukee m18 batteries. Be interesting to see if can do as much as you did with them.
I looked up those batteries so they are 18v 5ah each. One idea If you have two you could use them with a 36v controller, but the distance will be less.
I also built a bike with the same controller and motor but it doesnt run. The 12 or 24 volts of the batteries come to the controller and to the power lock, but not to the motor.
Can you help me please? I dont understand the power lock, i just sticked a piece of wire in the lock and connected bove of the contacts.
Also my bike falled to side and I held it on the throttle grip and accidently it teared of. I reconnected the spring in the hole and the grip seems to work again.
But why doesnt the current go to the motor?
Does ampere from batteries matter?
Using my1020 motor dc?
nice job. I built a 2 stroke 49cc version of this a few years back. I drove it about 1500 miles before I eventually stressed the main bike frame and it started to crack. I did repair it and reinforced it, but I never really trusted it after that. so if I were to build it again I would have located the engine where you put your motor instead of in front of the wheel. Anyway, here's a link to the crappy video I made years ago. I think you will enjoy it. Thanks for the show. Joe. czcams.com/video/IM3HRBcX4lo/video.html
Thanks a lot 👍 1500 miles is awesome. I'll check it out
So unser e bike geht mit neuem Akku nicht sehr gut!!
Hilft da ein akku mit mehr ampere oder begrenzt der controller den maximalen Strom??
The build is great except for one thing. Gearing. I am very familiar with those Unite motors and I build e bikes. It is a 2,500-rpm motor which will require a 90-tooth wheel sprocket if using a 26-inch wheel an 80 for a 20-inch wheel. Looks like gearing is for > 50 mph which will burn out the motor up any hill and be very inefficient. Proper gearing for a 500-watt motor is 20 mph. 15 mph is better for up big hills.
I am currently building a front wheel drive with a 36V - 1,000W Unite motor. At 36V it is 3,000 rpm at 30V rpm is 2,500 and am using a 20-inch wheel. Power is 833 watts at 30 volts and a 9 tooth 8mm motor and 62 tooth wheel gives a modest 21.66 mph gearing which will be decent up most hills. His building skills are far greater than mine as I use wood as don't know how to weld. If you Google top speed and gear ratio calculator electric scooter parts have that. They also have 8mm roller chain and a wide variety of sprockets. If the guy who posted the video reads this, I would like his opinion on belt drives. I never did one but would like to. I wish I could meet him. I did read the rest of what he said and see that he said an 80 tooth is better, so he knows his build is only ok for the flat. The gears and shifting is genius but would require a motor with lower KV / rpm to work great.
I watched the video again and the 8-tooth motor sprocket did help him, like to know where he got it. I never saw an 8 tooth before. Looks like around 44 mph gearing if the largest gear on the cassette is a 32T. My idea I would like to share with him is a 90 KV brushless RC motor. They can push 2,800 watts or even more. At 24V the rpm is 2,160 and speed is 38.68 mph. Power would need to be > 2,000 watts and there are a lot of RC motors that can do that.
I run very heavy Lishen - 18 Ah - LTO batteries. I bought 24 of them with my stimuli's $$$$. I have two 8S packs which are 20V each and a two 10V - 4S packs. They weigh a lot. 20V = 16 pounds. Why I am interested in a 20V build. I run a 1,800W brushless motor at 50V - LTO. Speed is > 32 mph on the flat but battery weight is ridiculous. Over 45 pounds.
Thanks! for the awesome feed back, and it helps all of us with are builds. I did this video as an experiment but quickly changed out to a 80 tooth 25H, I made another video. It's way better now but I agree a 92 tooth would be awesome for this small motor.
Nice work may you send me the link to buy 8 teeth sprocket please
Thanks! 👍 I don't have a link but you can find them on Ail and Amz, you have to do a little searching tho.
what happens if the chain comes off at high speed do you go over the handlesbars?
Ha Ha yeah that was a concern at first, It did fall off once up hill under load, seems to always just drop straight down. I was thinking of covering the spokes just in case.
Nice job I would have pulled a large sprocket from another bike and just used it for uphill
Thanks! 👍 I made another video, I removed cassette and added a larger sprocket. It's way better now and it will climb hills.
@@kurtscottage It always amazes me how many people make these and don't use a large drives sprocket I realize you can only go so big before you have to switch to motorcycle wheels but I would personally want to travel at least 30 mph max since I know I can pedal that fast at top speed.
And you should try making a really fast electric bike out of dirt cheap iteams
I'm working on a faster bike now, I just sourced some fairly cheap materials. 👍
yo do you really need two bvatts? aslo what kinbds bats r those!!!
You could use one with a 12v controller and motor, 24v is better tho. 12v 10Ah lead acid batteries
Motor you run with 24v look like 36v 500w
True I saw the exact same motor in 36v 500 watt. The windings should be different in both motors, but who really knows unless you test or take them apart. ✌
Would hate for the front end to lock up on you at full speed
Truth! ????
Why bother using gears on the electric motor?
How much the top speed