🚲 Custom 3000W BMX E-Bike [45MPH!] - Part 1 - Frame Mods, Motor Mount, Controller and Battery Tray

[@emptyempty30]

Yo dude its me!!!! I got the bike! I rip this thing at 33+ every single time I ride :D I am currently in the process of replacing the pedals with carbon fiber pegs, for a motorcycle style leg support. I don't even use the pedals! Thank you so much again!

[@hightech-lowlife]

Thanks man, I'm glad you're enjoying it 👍

[@SKISMONE.666]

Go 1980s. I was born 1970. Awesome video. Rad was mint.

[@hightech-lowlife]

80's and 90's were the best times to grow up in, sure I'm biased but the nostalgia is real 🙌

[@marthamryglod291]

If newspaper delivery was still a thing, this bike would have the kid rocking it.

[@hightech-lowlife]

It's still a thing! Only people use cars now and throw the papers from their cars instead.

[@Sim-Rig]

i just bought the cheapest bmx i could find to convert to electric. Thanks for the inspiration

[@hightech-lowlife]

Awesome 🍻 Hope your build goes well

[@jonathonstanford6951]

What are u using on your build?? I'm looking for a project my self..Being low on 💵💵 thes days..I just want a cheaper Ride I can Use for work

[@bruzza3031]

LOL the Jack didn't even go down far enough to hit the pedal I don't know why you did that but good job good dedication came out great

[@hightech-lowlife]

Thanks man, the jack actually helped a lot with spreading the dropouts!

[@wolfcloudstudios]

Looks so badass its definitely wild man but worth it lots of people enjoy these bikes

[@hightech-lowlife]

Thanks so much man, I'll be doing another BMX build in the future too. One even wilder! 💥

[@wolfcloudstudios]

@@hightech-lowlife oh really that's cool cant wait to see more vids

[@hightech-lowlife]

@@wolfcloudstudios Thank you! More to come!

[@JorgeRodriguez-ei2gi]

Very intrested on your bmx,we learn a lot ,i built a motorized BMX,now i enjoy your builts,thanks,keep sharing,Say hello,Joe.

[@hightech-lowlife]

Thanks so much man! Much appreciated!! 🍻

[@raymondsalazar2585]

Really liked the value for the money

[@hightech-lowlife]

Thanks man! 🍻

[@ryanraeburn212]

Starting to convert my bmx into a e-bike build as well, this video was very useful and enjoyed your style of problem solving and work ethic! :)

[@hightech-lowlife]

Awesome! I have a lot more videos on this build coming up! Thank you for the view and comment 🎃

[@Jddjdurjf]

Have you finished it? We should swap pics and see how they compare, mines just finished last week.

[@pr1ns173]

@@Jddjdurjf can i see it?

[@Jddjdurjf]

@@pr1ns173 Sure... but I can't post it here. I should make a KZbin video

[@pr1ns173]

@@Jddjdurjf you can give me your insta or something, i will build also one

[@Watchout5035.]

I am just starting this same project as of a few days ago. I bought the E-Leaf brand 1500 watt rear hub kit. I won't have to stretch my tail end out but I really like your battery mount idea. I will probably do the same way. I think converting a bmx bike is a great idea

[@hightech-lowlife]

Awesome! I'm sure you'll have a lot of fun, 1500W is plenty for a BMX! Good luck with the build, it will be worth the effort!! Thank you!

[@Mash3OH3]

How fast do 1500w can go? I currently have a 1000w set up and can only go roughly 25 to 28 mph. Is that normal speeds?

[@hightech-lowlife]

@@Mash3OH3 Roughly: 1000W = 27mph 1500W = 34mph 3000W = 45mph 5000W = 54mph It will vary on a lot of things, but mostly weight (you and the bike), tire size/hardness. After 35-40mph you get diminishing returns for $$$ and power, you have to dramatically increase power to overcome wind resistance. That's why you need to basically 5x the power to roughly double the mph, and this exponent gets larger the faster you go. If you just want to have fun I don't see much of a point in going over 35mph, so 1500W to me is the perfect balance of price/performance, if you want to go faster you will have to pay a lot more. Price increase from 1000w to 1500w is about 20-$50, but price increase from 1500-3000 is about double the cost.

[@bruzza3031]

@@Mash3OH3 40somewhere around there

[@bruzza3031]

@@Mash3OH3 and that is the right speed for a thousand Watts about 28-30 mph depending on your weight

[@JohnBowl14690]

Fantastic video! I'm going to do it, but I am going to see if there is another place I can create a custom rack, similar to a rear rack to mount the battery. Thank you!

[@hightech-lowlife]

Thanks for watching! Awesome, rear rack should be easy to implement 👍

[@derrickenbuenosaires]

"BMX bike impractical" lol it's actually the only bike I ever see myself riding on. It's super maneuverable around traffic and easy to jump up curbs and stuff, plus it's a great work out. I see guys with the bigger bikes using some weird gear ratio where it looks like their going nowhere fast. Then again I've been riding since 12. 33 now.

[@hightech-lowlife]

I agree there are some niche aspects of a BMX bike that give it some advantages, mainly how compact they are. This was originally built as a small "grocery-getter" and for a quick ride and easy to store it really does the job well. Thanks man!

[@floordoctor]

@@hightech-lowlife Pretty cool.... for a bike that fast though....probably need to go up to a 24" ....... or dirt jumper would be cool too. It's just the weight, which ya have to get down to enjoy proper BMX functionality. The first person to get one down to 35 lbs or so with mostly titanium everywhere....winner winner! Cool build dude. Nice shout out to Rad...I worked on the movie ; )

[@hightech-lowlife]

@@floordoctor Yeah, as battery tech gets better the weight will just come down more and more - I just use it to cruise, but yes if you wanted it for actual BMX use it would be pretty heavy for that. Thanks man! That's awesome, RAD was one of my favorite movies growing up!

[@SKISMONE.666]

I think your an artist, thus explaining your quest for "perfection".

[@hightech-lowlife]

Thanks man, much appreciated!

[@DeTscherni]

Absolut amazing bike! Nice Job💪 helps me a lot, thx

[@hightech-lowlife]

Thanks man!

[@aaronkent76]

Thank you for all the hard work, builds and videos are amzing

[@hightech-lowlife]

Thank you so much, I really appreciate that!

[@bignbuilds3209]

watched the full build and good work.. my only constructive comment is invest in a riv nut insert tool.... you wont regret it. for adding a threaded insert into most applications this would be my tool of choice.. just built a 48v 20ah 1500w 26" mtb does 34mph out of the box and is so much fun. i need to document the build .. well done on your builds.. and keep them coming.. 😁

[@hightech-lowlife]

Thanks so much man! I didn't have a rivnut tool at that time when I made the video but I do now, I actually used it on one of my more recent builds on the channel 👍 That's awesome, I think 1500W is the best, because it's cheap, fast, and not too scary. You totally should put up a video on it, I'd check it out for sure! Thank you, I have a ton more builds on the way.

[@jonbrooks4376]

Is there any kits will allow you to just slip the rear wheel on without modifications to the back of a 20" bike? My luck one side would be bent out farther then the other.

[@hightech-lowlife]

Not that I'm aware of any, BMX has 110mm dropouts, and most motor kits are 135mm. It's nearly impossible to align the bends perfectly, and you're only stretching 20mm, which is less than an inch, which is less than half an inch on each side, so it's a very small amount 👍Just go for it!

[@amsyary1]

your channel is underatted

[@hightech-lowlife]

Thank you so much! I am trying to make better and better content, I appreciate the feedback!

[@amsyary1]

​@@hightech-lowlife maybe lil bit work on thumbnail, the ebike is not very visible :)

[@hightech-lowlife]

@@amsyary1 Thank you for the suggestion! I have about 5 or 6 more thumbnails in this series so I will have a variety to show, I also wonder if not giving away everything in the thumbnail is more or less enticing for people :) I don't think I have enough analytics yet to do experiments with any conclusions, I will keep trying things, thank you!

[@JoaquinBeltran-pw4ei]

How did you get a single speed freewheel instead of the cassette ??? Or did you buy it separately?

[@hightech-lowlife]

Most sellers will give you an option 👍You can always buy them separately if you have to though.

[@julzhotti5466]

Thankyou for showing the process you went through every step of the way especially how to fit the back wheel on, your option was better than our original thought of cutting & welding a bigger one on. I was born in the 70's, I always loved bmx bikes, I was a tomboy as a teenager.

[@hightech-lowlife]

Thank you! When I made this bike I didn't know how to weld yet, but you could do it that way for sure 👍 I was always into bikes since I was a kid as well 🍻

[@julzhotti5466]

@@hightech-lowlife your video saved us creating more problems for ourselves, I knew the potential of cutting & welding wouldv been trial & error & we really didn't wanna do that. Plus you gave us other time saving idea's we never thought of aswel. I know for sure, you saved us a lot of time & potential grief. Sending many thanks from us in South Australia Very much appreciated

[@hightech-lowlife]

@@julzhotti5466 Thank you so much! Hopefully you guys enjoy your e-bmx. Cheers from USA 🍻

[@Suprasicotte]

Hello loves your videos, where did you get the bmx hub motor with one sprocket no cassette?

[@hightech-lowlife]

Thanks man! I got this one on aliexpress, if you check the comments I linked it many times before. But you should be able to put a freewheel (single sprocket) on any hub motor 👍 The threads are the same for cassette or single speed.

[@bruzza3031]

I wonder how good those brakes work because I'm putting one on my back brake my kit would not fit on my old ebike

[@hightech-lowlife]

Everyone will tell you that they won't work at all and that "you're gonna die", but these types of brakes work just fine 👍

[@Twin_turbo_coyote_fox]

I always enjoy the video, they are fun builds.

[@hightech-lowlife]

Thank you so much, more to come in this series, it's a long road 🎃

[@SarahTaylor-b2x]

Where do i get that set up like your one and the same back wheel like your one thanks m8

[@hightech-lowlife]

www.aliexpress.us/item/3256802904722046.html

[@Jddjdurjf]

I finished my bmx. Top speed 65kmh which is 40mph. Feels safe and only seems to need caliper brakes front and back. It's a lot of fun on the road because I am faster than regular cars considering traffic. I often pull away from red lights faster than cars and I must be getting comments I can't hear lol. Anyways it's great and worth the money. I think overall I put $2500 Canadian into it. 1500w rear motor with a large 52v 21hour Amp battery. Glad I bought the big battery.

[@hightech-lowlife]

That's awesome man! Oh yeah, all you really need is 1500W that's more than fast enough for sure. It's a lot of fun in a small package, I will be making a new EBMX soon, and going to try and stuff a 5KW motor on it 👍Thanks man!!

[@memesyandhorrorshorts]

What kind of mileage do u get on a single charge with your setup ? How far can u get and go back home?

[@hightech-lowlife]

@@memesyandhorrorshorts This got about 30-40 miles on a charge, depending on how you're riding it 👍I rode to work and back multiple times and that is a 25 mile trip, no problem.

[@memesyandhorrorshorts]

@@hightech-lowlife dammmmmmmm that's wayyyyy better than the electric scooter I had lol 😂 it was factory tho it got less than 5 miles but claimed 12miles

[@hightech-lowlife]

@@memesyandhorrorshorts My large bike with the giant battery gets over 80 miles, could maybe go 100 miles on a charge 😂It really just depends on how many amp hours your pack is vs how much energy you use 👍

[@drewskiakg2719]

Thanks for the video. I just purchased the lowest version of a lectric ebike. I know I'm going to be upgrading everything. I want to mod to a 72v battery pack and what kind of speed controller, and rear hub setup should I use (purchase). From what company? Thanks again for your vids. Real helpful!

[@hightech-lowlife]

Thanks man!! That's cool, I'm not too familiar with that bike, but upon looking it up, it looks like a more standard folder. The thing with these is that they have smaller wheels (20") but are also somewhat "fat-tire" (2.4") A lot of the kits and hubs I am familiar with fit more standard type bike frames (26" MTB, 20" BMX, etc...) so I don't know a lot of options for this type of bike frame that you have specifically, although I'm sure there are (or suppose likely there are). Most likely the stock hub motor can handle more than the factor controller and battery though, so you may want to try just upgrading those first, although if you're putting too much power it could cause issues, so it really depends. I would first think about why you're upgrading and what your goals of the upgrades are (specifically). Once you know that then you can figure out what you will need to fulfill those goals. Thank you!

[@donbatallones3152]

Wow nice work... What controler do you use sir?

[@hightech-lowlife]

Thanks man! For this build it was a 50A controller (upgraded) that came with the motor kit.

[@billmoody823]

What kit is this? Got a link to them? I'd really like the controller.

[@hightech-lowlife]

www.aliexpress.us/item/2251832082112160.html you have to ask for the 50A controller though 👍

[@billmoody823]

Thank you

[@hightech-lowlife]

@@billmoody823 No prob 🍻

[@popeye7833]

Any link for the rear wheel engine with one sprocket only please

[@hightech-lowlife]

hightech-lowlife.github.io/projects/019_bmx_ebike/019_bmx_ebike

[@252wayz]

How much was the motor kit with 20in wheel?

[@hightech-lowlife]

www.aliexpress.us/item/3256802025658327.html

[@MrJasenstewart97]

Id just use an ixf crankset so youd also have a nice sealed bearing crankset and they come with spacers so you can bring out the cranks and align the chain

[@hightech-lowlife]

Yes, swapping the crank would work, but this was free and easier 🍻

[@ripp3rjak934]

I was wondering…. Does more Watts on equal to more Top speed? Like would a 4800v 1500w have a higher top speed than a 1000w?

[@hightech-lowlife]

Without getting too complicated, yes for the most part. 👍 From my personal testing and experience (with all other things roughly equal): 1000W = 27mph 1500W = 34mph 3000W = 45mph 5000W = 54mph You'll see that the faster you want to go, the more power you require to gain even a little more top speed. Around the 40mph mark it's diminishing returns as wind resistance becomes the greatest factor to overcome. I'd say for 95% of people you can have a lot of fun for not much $$$ in the 1000 ~ 1500W range. 30mph on a 'bicycle' is extremely fast! The more power you want, your bike starts to get heavier, and a lot more expensive, usually have to upgrade to a 72v system, etc. I'll make a video on this subject of speed and watts and pricing, breaking down what I know. Thanks!

[@ripp3rjak934]

@@hightech-lowlife Well currently i have a 48v 1000w set up. It’s great so far. However im just on the ropes as to either get a 52v battery which can probably accommodate my 48v rear hub motor (my controller can support 52v) OR Get a 48v and 3000w or higher. Which would you recommend for more TOP speed. A new 52v 20ah battery? Or get a rear hub motor with higher Watts BUT only on 48v only. This is where im currently stuck deciding. My current battery is a 48v 19.2ah battery. Let me know no rush

[@hightech-lowlife]

@@ripp3rjak934 48 to 52v will not be a significant difference: kzbin.info/www/bejne/nJDQdKprh9Oaq7c When you say 'hub motor with higher watts' do you mean both the hub motor + controller, like a whole new kit? That would make more of a difference. If you're just upgrading the motor itself, probably won't see any difference if you're not changing the controller (which will allow more power). You can probably squeeze more power out of the motor you have, just by giving it more watts from a better/different controller or a battery that can deliver more amps. Usually you'll want to match the components you have, if you put on a more powerful motor you'll want a controller and battery that can feed it more power. How fast are you going right now and how fast would you like to go?

[@ripp3rjak934]

@@hightech-lowlife My controller is programmable from 36v to 72v. Basically it can accommodate any voltage of battery. So should I get a 52v 20ah battery? or should I just keep my current 48v 19.2ah battery and just replace my current 48v 1000w rear hub motor to a 48v 5000w Which one will give me more TOP speed. A battery change or a higher wattage motor.

[@hightech-lowlife]

@@ripp3rjak934 If it's programmable then I would try adjusting it to output more amps from the battery you have (unless you're already maxed out, then go for a battery that can discharge more amps). Going to 52V will give you roughly a 10% increase in power. Changing the motor won't make any difference if you can't deliver more power (amps) to it. Usually the motor rated power will just show you what it can handle from your battery and controller, it's not an indicator of what it will actually output, that comes from your battery and controller. That's why you usually want to upgrade all components together, as as they are dependent on one another. You won't gain any speed or power by increasing the motor alone, as all that is doing is allowing handling of a greater amount of power from your battery/controller. You can squeeze more power out of the motor you have by either getting a battery that can dump more amps, or adjusting your controller to do that. If you have a very powerful battery and controller but a smaller motor, you risk overloading/overheating it. If you have a smaller battery and controller but a huge motor it will only go as fast as you can deliver the power, so most of that will be a waste as you won't be using the potential plus it will weigh more and be more expensive. If you're trying to go faster for cheaper, then I would upgrade the battery or controller (or both) first (you say your controller is programmable, so I would just adjust that first, doesn't cost anything to program 👍). Once you've saturated what your motor can take, then upgrade the motor to the power level you're delivering. The takeaway is that all the components are interlinked, if you just upgrade one element in the drivetrain, most likely you'll just create a bottleneck.

[@g0th1cazn]

I would recommend a mid drive over the hub motor.

[@hightech-lowlife]

Why is that?

[@arrab11]

Great video. And an awesome new project. Don't make you projects simpler, we enjoy your struggles! Keep up the great work!

[@hightech-lowlife]

Thank you so much! I will keep going 🎃 I appreciate the feedback!

[@garyjohnson4575]

When will the first massive fire start. There's got to be a limit!

[@hightech-lowlife]

This is only V1, wait until I make V2 that will be double the power of this one 🍻

[@hus_10001]

Omg I been wanting to build a bmx ebike 😅

[@hightech-lowlife]

Go for it! 🍻

[@Gutowski1944]

How about starting with a bmx fat tire bike with disk brakes and getting a fat tire e bike conversion kit ?

[@hightech-lowlife]

Next BMX will have a full suspension, the thing with these newer fat tire bikes with all the goodies is they are quite pricey, I got this bike for free! I might try fabricating my own mods (fat tire accommodations + suspension + disks) for the next BMX iteration. Thanks for the feedback!

[@josephrogala6256]

You could have took the crank off and threw a couple washer spacers on the side that wasnt clearing the frame.

[@hightech-lowlife]

It may be possible, but I'm not sure if you can shim this type of crank 👍

[@gandalf_2170]

What fingers cm do you use?

[@hightech-lowlife]

Centimeters of what?

[@floppydisk4500]

My first ebike was a hub motor hooked to a BMX bike, little piece of sh!t could hit 35 miles an hour on the side of the highway. 25 to 30 going up the mountainside if I pedal with it. The thing was an absolute monster. Got hit commuting it to work when I moved up to Indy, rip be too the tiny g

[@hightech-lowlife]

That's awesome man, this is definitely one of the most fun builds I've made! Maybe someday you can make another 👍

[@floppydisk4500]

@@hightech-lowlife yeah I rebuilt it afterwards with a bike frame that I got from my boss, it's about 20 lb heavier and it's never felt quite like it, let alone coming off the line from stop, but I'm a little higher up off the ground so people tend to see me a little bit better. The top speed hasn't really changed but, the range tanked by about a couple of miles (14 to the 22-ish now)

[@gievestal5314]

Where we can buy this accesorries

[@hightech-lowlife]

What accessories are you referring to?

[@TeddyHatch]

What kit did u use

[@hightech-lowlife]

You can use this kit: www.aliexpress.us/item/3256802033522957.html

[@pierrefitch]

link to all stuff you bought to make this happen

[@hightech-lowlife]

hightech-lowlife.github.io/projects/019_bmx_ebike/019_bmx_ebike

[@jasonschwartz9481]

I grew up riding motocross and BMX. With BMX I got to compete as a "pro" for a short while. Anyway, to this day I prefer BMX even on some mountain bike trails. At least the downhills lol. The uphills? I'm walking a ton lol. But, I may have to do something along these lines just for fun. The added weight, if I adjust with suspension, could actually help a little with control.

[@hightech-lowlife]

That's awesome man! Totally BMX does have its advantages, especially for trick riding as they are most maneuverable 👍 It's definitely one of the fun builds I've made, tons of power on a tiny frame.

[@jasonschwartz9481]

@@hightech-lowlife I think I'll need to lower the battery for weight distribution...especially for the mountainous trails here in south western PA. And, I'll 100% have to throw forks on...not too worried about the back suspension. But, I'm liking this particular rear hub drive. The mid-drives are tremendous, but in a BMX I'd be smashing it around way too much lol. Edit:. I know that doing a mountain bike would be more intelligent. But, I can't stand the way that they handle and how you sit...I never could.

[@hightech-lowlife]

@@jasonschwartz9481 Yes you could hang the battery from the bottom tube, as long as it doesn't interfere with the front tire 👍I personally like hub motors more than mid drives, but I will be doing another mid drive build somewhat soon as it's been a while since I've had one. I think mountain bikes should be better for downhill applications, but if you're more comfortable on a BMX then that's the best for you!

[@jasonschwartz9481]

@@hightech-lowlife mountain bikes definitely are, but if I can keep the weight lite enough than I just have more fun with BMX. I'm going to check out your edirtbike build too. After I do one of these I think that's my next project. I have 2 sons that are 11 and 13, and both ride moto. However, around this area there just aren't that many twinkle left where they won't call the police on dirtbikes. So, I was looking at the Sur-ron's and, Segways, and others. But, the only one that I'd feel comfortable spending money on for them is the X160, and it has no range. So, building one seems like the more economic way... Plus, I can start them out slower and upgrade over time.

[@hightech-lowlife]

@@jasonschwartz9481 Yeah that's true, I think you'd have more fun on the BMX anyway, thanks man! One advantage of the ebikes is they are very quiet so much less likely to piss off some neighbors 👍 The sur-rons (and styles like that) are cool, but are pretty pricey. I would go that route too just build something and upgrade over time, plus it might get your sons interested in the mechanical side of it which is always a plus for developing brains - figuring things out and problem solving, getting used to finding workarounds and solution to adversity, I think it's really good for humans!

[@channghiem5012]

lol Aunt Becky!

[@hightech-lowlife]

If you've never seen that movie, it's wild. 👍

[@haydenstallings6550]

How much it cost for all the parts and the name of them

[@hightech-lowlife]

hightech-lowlife.github.io/projects/019_bmx_ebike/019_bmx_ebike

[@SKISMONE.666]

Like your ink. I got a right sleeve myself

[@hightech-lowlife]

Thanks man!!

[@gandalf_2170]

Menggunakan jari jari berapa cm?

[@dapor4920]

i use threaded rivets for the battery packs

[@hightech-lowlife]

It's a good idea 👍

[@UrielFlores-xq3ly]

First time watching this because I want to look into a motor of 350 and at the end you show your shoes that are the same as mines. Js good vid anyways

[@UrielFlores-xq3ly]

And you are making cuts in the body don't recommend it.

[@hightech-lowlife]

Thanks man 👍The frame is very strong and has held up

[@harveynuqui8554]

RAD true BMX lover

[@hightech-lowlife]

🤘🤘 !

[@matthewsouthwick5823]

Grinder. For the crank clearance.. Just a little bit

[@hightech-lowlife]

That's what I end up doing later on in the series 👍

[@matthewsouthwick5823]

My dumb ass didnt finish the video to eventually see thats exactly what you did haha sorry

[@hightech-lowlife]

@@matthewsouthwick5823 It's all good man, I appreciate the comments regardless of the time when they're said 👍 I've actually gotten quite a few tips from people for other ways of doing things and I always keep them in my back pocket for later. Thanks!

[@anilmitchell8313]

We're can i order one from

[@hightech-lowlife]

You can order the parts and build one? 👍

[@anilmitchell8313]

Can u please send me a like cuz i Am getting trouble

[@sidrodie9368]

you should've use that sledgehammer on bmx frame instead to put a dent on the point where pedal rod was colliding. that dent would let pedal rod pass freely.

[@hightech-lowlife]

I was trying to preserve the frame as best I could 👍 check the future episodes to see my solution, thanks!

[@deleted203]

I still got Rad recorded to VHS. My fav all time movie. I'm 35 and I've had that movie since I was like 5.

[@hightech-lowlife]

🤘Hell yeah! 🤘 - I never bought it although I should have, I did rent it about 1000+ times as a kid though

[@Nicobmx1]

where u live if u dont mind me asking

[@hightech-lowlife]

Left coast, why do you ask?

[@Nicobmx1]

just wondering cause it looked a bit like australia where i live

[@hightech-lowlife]

Cool, never been to Aus but it looks like a nice place! @@Nicobmx1

[@MisterDivineAdVenture]

You seem like a tall guy now - I want to see you riding that killer motor-with-appendages.

[@hightech-lowlife]

6', keep watching to the end 🙌

[@billmoody823]

Awesome

[@hightech-lowlife]

Thanks so much!

[@PerpetualMan22]

Tske the peddles off and slip pipes on the crank so you can torque it

[@hightech-lowlife]

I only needed a few mm's of clearance, I think in this video I show my fix 👍

[@SKISMONE.666]

What's the top speed?

[@hightech-lowlife]

45 for this one 👍

[@SKISMONE.666]

That's fast as hell. Does that turn it into a motorcycle or scooter classification?

[@hightech-lowlife]

@@SKISMONE.666 Thank man! Nah, it's just a bicycle, just happens to be very fast 😂

[@bruzza3031]

Definitely a road bike even though I see downhill riders go with no front shocks or rear

[@hightech-lowlife]

Yeah, suspensions are the best in my opinion though 👍

[@hoangvanthong8493]

product link please

[@hightech-lowlife]

hightech-lowlife.github.io/projects/019_bmx_ebike/019_bmx_ebike

[@maydaverave]

Calling that bike bmx is a stretch lol. Also bmx bikes are awesome. the perfect suburban hooligan machine. I am currently turning my specialized p24 bmx bike into electric. I'm using the grin all axle hubmotor. It's a front hub but I'm mounting it on rear with 15mm by 110 mm axle option. My bmx rear dropouts are 14mm by 110 mm so hopefully only 1mm of modification necessary.

[@hightech-lowlife]

Thanks man! BMX bikes are super fun!! That should work easily. I originally was going to put a front hub on the rear for this build, but then there wouldn't be a way to mount a freewheel so the pedals would not work. I still wanted to pedal sometimes 👍Good luck man!

[@jonbrooks4376]

Can I ask what kit you are using on your project? I'm thinking about converting my 20" and don't want to bend anything. 😅

[@maydaverave]

@@jonbrooks4376 I used the all axle motor from ebikes ca or grin tech. it's only a front motor so I can't use pedal since I put on rear. I had to grind a bit as axle was a bit thicker than 14 mm

[@garyjohnson4575]

Just like SUV's....are they really sport/utility!? You can damage them pulling onto the shoulder!

[@YUGEBBQ]

How did it turn out? Any tips on the 15mm to 14mm difference?

[@frankroach9346]

I have a rad mini foldable I want a rigged frame this gave me a idea thanks for your video

[@hightech-lowlife]

Thanks man! totally do it!!

[@Fortuna_716]

Maybe drill the holes bigger and use threaded sleeves

[@hightech-lowlife]

Yes lots of better ways to do it, but I did end up finding a solution 👍

[@ajlepka9753]

Aye making things look nice ain’t bad brotja

[@hightech-lowlife]

Thanks so much!!

[@joseadames6598]

Nice

[@hightech-lowlife]

Thanks man!

[@XxVampiricxX]

"your not here for me, your here for the bike" bro 😭 that sucks

[@hightech-lowlife]

👍

[@vengellesenitsuga6362]

Thinking of doing that to my old bmx bike...

[@hightech-lowlife]

Do it! 🔥

[@nobloxflux]

The drop outs scare me lol

[@hightech-lowlife]

Afraid of them breaking? Nah BMX bikes are very strong 🍻

[@TheMatixen]

good job

[@hightech-lowlife]

Thank you so much!

[@trexes11]

I love your videos 📹 I wonder if you can help me with a diy ebike

[@hightech-lowlife]

Thanks man! I may be able to if you just need some advice - what issue are you having right now?

[@LordDirus007]

That's massive motor. Honestly sort of a waste to put it on such a plane Frame.

[@hightech-lowlife]

No way man, the next ebmx I will make (soon-ish) will be double this power, 6KW at least 👍

[@42.J]

I'm 100% sure I am gonna do that thing you said not to do😂

[@hightech-lowlife]

Most people do 😎

[@42.J]

@@hightech-lowlife I've been looking for a wheel that fits so I don't have to, what is your opinion on front wheel motors?

[@hightech-lowlife]

@@42.J I have one on one of my bikes and it works great. I did make my own torque arms to prevent damage however.

[@smarc1325]

Sooo.. what aboutBMX Bandits Bro ? 😅😃

[@hightech-lowlife]

Wow I've never heard of that one, I'll have to check it out, thanks!

[@ogre2249]

OCD's are mofos, anin't they!! Great job

[@hightech-lowlife]

100% 👍 Thanks man, much appreciated!

[@nelsonlopez879]

The best thing to do in this scenario is to install smaller chainring and cranks

[@hightech-lowlife]

I don't know if you can get much smaller 👍

[@nelsonlopez879]

@@hightech-lowlife yes get cranks from a smaller bike, like a 16 inch bike

[@hightech-lowlife]

I think for this application you'd actually want a larger chainring, the gearing on this is already very short due to the much larger freewheel from the hub, the freewheel that came with this bike was the smallest one I have ever seen and barely larger than the axle itself. As it is right now, pedaling is nearly useless as after you're going about 5mph your legs are moving too fast. I think going larger would be more comfortable and efficient as it would put you in the cruising speed of 15-20mph where you could still pedal at higher speeds, even with some assist from the throttle. It depends on what you're going for, but unless you're climbing steep hills, the way the gearing is right now, it's not very useful. Also having 3000W makes pedaling even more useless unless you really wanted to.

[@nelsonlopez879]

Got it. I had a similar project, i wanted to ride a 12 inch kids bike but the chainring was so small and couldn’t go fast, then i tried to put bigger chainring, i did but i had to bent the frame

[@hightech-lowlife]

@@nelsonlopez879 Yeah, I think you'd need a pretty big chainring for this bike to be fun to pedal, on my next BMX build I'll look into making it so you can pedal as well. Thanks!

[@charlieplatnum82]

Cru Jooooooooonnneesssssss!!!!! lol

[@hightech-lowlife]

🤘🤘 Hell Track has nothing on me 💪

[@sivodesilva9866]

Remember me in 1980 trying to convert my sisters bicycle to a bmx..

[@hightech-lowlife]

🤘🤘 Awesome!!

[@PerpetualMan22]

Or just remove the crank , and replace with foot pegs, a crank and chain is not really needed. I really wish you would have done some performance testing and documentation so people will understand how fast 3,000 watts will go

[@hightech-lowlife]

Oh I show the performance in the rest (end) of the series, this is only part 1 of 6 👍

[@bruzza3031]

I would have just filed it I would not hit it with a hammer or just leave it after you pedal for a while it will just scrape it enough so it'll get by

[@hightech-lowlife]

Keep watching for the solution! 😂

[@SpACeCruizeR2o3]

dam i need that asap

[@hightech-lowlife]

Thanks man! Wait until you see it finished 🤘

[@SpACeCruizeR2o3]

@@hightech-lowlife i know u really put alot of heart in your builds all i did was a motorbike an it lasted 3months then the piston ring snapped

[@hightech-lowlife]

@@SpACeCruizeR2o3 Thanks man! It's still a lot more than a lot of people would do, you can always rebuild it!

[@SpACeCruizeR2o3]

@@hightech-lowlife OK MAN U GOT IT 1oo% its watts im here 4

[@hightech-lowlife]

@@SpACeCruizeR2o3 Thanks so much man! 🍻

[@luckydacosta549]

Modding the BB could save a lot of that time for crank clearance

[@hightech-lowlife]

I do a little mod on this later in the series 👍🍻

[@dtscustomzzz]

I woulda just notched the petal arm smacked it and rewelded it boom

[@dtscustomzzz]

Or atleast cut it slightly and just bend it just a petal nothing structural

[@dtscustomzzz]

Omg was i so happy to see you grind that damn milimeters away fuck ya brotha

[@hightech-lowlife]

@@dtscustomzzz 🤘🤘 Thanks man!!

[@andykerr3803]

Never heeard of race BMX, huh? Removing a chain... Wow this guy is simple 😂

[@hightech-lowlife]

You've never heard of racing BMX bikes before?

[@andykerr3803]

@@hightech-lowlife Treat yourself to a new aluminum, XXXL, Canadian "Yess" World champion frame. Perhaps 2 wheel drive to 19 or 20 inch Creepy Crawler* tires from Maxxis. Source motors and controllers from Grin engineering... Also Canadian, like me 😊 High tech - yes lowlife - nyet Pay attention to proper braking and controls, it isn't that hard with all the options... Cheers 🍻 * or 2.4" Supermoto tires from Schalbe for speed. The Creepy Crawlers are for trials BMX... You know, those other ones, eh?

[@richie8214]

Grind down where its touching on the pedal arm . Year late but still

[@hightech-lowlife]

Check the rest of the series for my solution 👍

[@christopherlastname7638]

I'm 43 still ride an original DK 😊

[@hightech-lowlife]

🤘🤘

[@lewis9616]

This bike came with a one piece crank The solution would of been to change the crank system to a 3piece crank with a longer axle

[@hightech-lowlife]

What (problem) are you referring to?

[@lewis9616]

@@hightech-lowlife when the pedal arms would not move around freely

[@hightech-lowlife]

@@lewis9616 Ah yes, I think they also make spacers to extend the crank arms too! Thanks!

[@lewis9616]

@@hightech-lowlife there is no spacers for a one piece crank as it is made out of one solid peice of metal Love the build tho bud

[@hightech-lowlife]

@@lewis9616 Thanks man!!! I'm pretty sure I could fab some crank spacers, my angle grinder likes to take 1 piece and turn it into 2 pieces! hahaha 💥💥💥

[@soylentgreen9492]

👻

[@hightech-lowlife]

👽🤖 ~ 👏💥🎃 ~ 👾

[@soylentgreen9492]

@@hightech-lowlife Nice Build.🤩

[@hightech-lowlife]

@@soylentgreen9492 Thanks man! Much appreciated 🤘

[@garyjohnson4575]

Heat it and bend it out a half inch...

[@hightech-lowlife]

That would work, but my solution also worked 👍

[@Bobbybbops]

Shorter cranks will do the trick. They make em small.

[@hightech-lowlife]

Yeah that would work too, faster to trim a couple mm's off with a grinder though 💪 and less expensive!

[@Mr383chevyboy]

Next time cut the controller box not the cheap frame and dont drill into the cheal frame use u bolts

[@hightech-lowlife]

That would have cut into the PCB, and also render the water resistance useless. U-bolts would have slipped with the weight of the battery and the top tube being perfectly circular. These frames are overbuilt for my use 👍

[@TheonlyNikolaiyouknow]

Okay this is the worst example of a bmx bike

[@hightech-lowlife]

🤘hell yeah🤘

[@DeeOutdoors33]

Sunday👍

[@ArcherInTraining2]

Why do you say that? I'm asking because I don't know a thing about bmx and I just bought one on Amazon 😂

[@kjm-ch7jc]

There are a lot of dumb youngsters watching this and will end up getting hurt riding this Monstrosity after copying your video.

[@hightech-lowlife]

kzbin.info/www/bejne/lZ2nk6h3oLGrhtk

[@garyjohnson4575]

BMX bikes are only cool while doing tricks. No one looks cool on a tiny bike, with no skills.

[@hightech-lowlife]

Coolness is in the eye of the beholder 👽

[@sushuki4833]

U should put a 44 tooth sprocket up from since the rear is 16 tooth. For gearing if you have a 26 tooth sprocket u want a 9 tooth cassette and for a 36 tooth sprocket you want a 13 tooth freewheel and for 44 tooth u want 16 tooth freewheel.

[@hightech-lowlife]

When your bike goes 45MPH you don't ever need to pedal 👍 you can if you want, but for most of your riding the pedals are there to rest your feet, you'd need some crazy large sprocket to even have a high enough ratio to assist going 20+. Once the sprockets get so large they will look strange, and also possibly start to collide with other things (controller, etc).

[@sushuki4833]

But without like cranks and stuff wouldn’t that just make it like a electric motorcycle by law tho?. Also would it be a good idea to hook up like 2 60 volt batteries on a bmx to jump it?. Also how fast would it go like 100mph or something lol

[@hightech-lowlife]

@@sushuki4833 Well, if you want to pedal any bike over 20/25 mph you're going to need something like a rohloff hub (very expensive), any normal bicycle setup is not going to be able to provide the ratio to even get up to speed to the bike, let alone surpass it enough to where your pedaling would even matter at all 👍 Doubling the voltage does not double the speed, plus you need a system (motor, controller, batteries) that are made for that voltage. Wind resistance becomes the biggest factor to overcome, after 40mph, the energy needed for even small increments of speed increase is exponential. That's why a 1000W motor can get you to 28mph, while a 12000W will get you around 60, that's 12x the power, for 2x the speed increase. The faster you got the more power you'd need for even small gains.

[@TheElvaguitO]

La bateria lo tiene en la mochila

[@hightech-lowlife]

Yes, it's in the top battery bag 👍

[@sushuki4833]

Can u rep;y to this comment and send all the links to everything on this to me plz. I wa t to do this so I can go ride some mtb trails on my bmx with this and send all the jumps with this lol

[@hightech-lowlife]

Thanks man, go here: hightech-lowlife.github.io/projects/019_bmx_ebike/019_bmx_ebike

[@sushuki4833]

Thx for the link for everything but I already found a 50mph FULL complete e bike kit from the uk for like 840 bucks. So I’ll be getting that since it’s made for jumping and stuff and idk if that aliexoress stuff can handle such pressures of jumping lol. Gonna take it when it gets here once I buy it in like February and then like go to slaughter pen. I’ll also be getting a suspension fork for it as well lol.

[@hightech-lowlife]

@@sushuki4833 Well good luck man, I'd be skeptical of what components that bike is using as 99% all come from China (or AliExpress if you will). Hope it works out for you 🍻