Old mountain bike + Aliexpress e-bike conversion kit = best deal for electromobility.

0:00 introduction
1:00 choosing the bike for conversion
3:52 rear hub motor kit
5:06 batteries
5:46 rear wheel replacement
7:00 ISSUE Nr. 1
9:14 display
9:39 battery installation
10:47 controller installation
11:50 pedal assist sensor PAS
13:15 brake sensor
13:35 connecting cables
13:59 ISSUE Nr. 2
15:07 testing connection
15:34 ISSUE Nr. 3
16:32 sound and ride
The conversion kit I used in this video is 36 V 250 W:
szajbajk.com/3FHOX6E
The battery: szajbajk.com/3nzAcfS

[@Truebluehendo]

I've watched countless instructional videos on this subject, and I must say Yours is right up there with the best of them, your footage is nice and clear and your instructions simple and to the point. I love how you've kept those simple little mistakes that we could all easily miss in the clip which I'm sure will help a lot of people not make the same mistakes. Congratulations!! It really is a great and very helpful video. All the best

[@shaunhall960]

I have a Trek 800 steel frame that I'm planning to convert to electric. And here is the video I needed to see. Thank you!

[@chellovlogs]

I really enjoyed the strategies to take out the pedals!

[@CARLOSSANCHEZROMERO_YOGIBEER]

Muchisimas gracias, compré ese mismo kit hace un mes pero de 500w el motor y bateria de 17,5Ah y 48v, me he encontrado con tu mismo problema al momento de poner los piñones en la rueda, en mi caso se partió el conector del cable negro al sacar los pines para poder sacar la tuerca del eje, y me vino sin las abrazaderas la caja donde hay que meter el controlador, por lo que estoy buscando alternativas. Me aclaraste por fin lo que ningun otro canal de youtube hizo, que es ni mas ni menos que el sensor de freno con iman tambien sirve para frenos normales y no solo hidraulicos de disco. Aunque en mi caso solo vino un sensor para el freno trasero. Aunque bueno suficiente.

[@alvinwabasse6341]

Hello from Ontario. It’s nice to see u working on something that’s I could actually afford! Cheers!

[@RastaOnABike]

i Just uploaded my build video inspired by yours. Thanks for the inspiration. In love with ebikes now

[@VitoMazok]

Красава, уважение таким пацанам, которые снимают качественно

[@juanacevedo9415]

Great video! You made it easy to understand how to convert a regular bike to an E-bike. Thank you very much!!!

[@dugldoo]

For you who are whining that "250 is useless!" go to Bike Calculator and put in the numbers: A 225 lb rider on a 60 lb bike up a 6% hill, using 250 watts from a battery and 150 watts of pedal power (quite modest effort) will get up the hill at about 10 mph. And he'll soon be in lots better shape than the frump who glides up the hill pulling 750 watts of battery power without pedaling.

[@dugldoo]

PS: Putting this into perspective: a 160 lb rider on a 20 lb road bike pedaling at 250 watts will get up the 6% hill at 10 mph

[@kevinhansford3929]

Not everyone gets a bike to get fit! Some people have physically demanding jobs and don't want to be sweating amd shagged out before they even start work so a 750w ebike is just the job

[@dugldoo]

Kevin, I'm with ya on that, but a casual rider who's not in it for fitness or for 40 mph recklessness really never needs to go over 150-200 watts, so 250 is plenty, gives ya more options, and will cost lots less.

[@teflondave7823]

I have built something similar with a cheap rear motor + battery 10y ago and it is still a great commute bike. I had to replace the battery twice, but this was expected. People saying 250W electric pedal power are useless maybe live in a country where you can drive 1kW bikes to school at 60mph. This is not so in many European countries. Go build your own bike and have (legal) fun!👍

[@gmeister03]

You’re right. America is pretty awesome like that

[@simonjohnhinton1938]

if you're going to buy an ebike kit go for one with a dual mode controller. if the hall sensors in the hub fail the motor will continue to work and work well. some actually remove the sensors and the wiring and put beefier cables to power the motor instead so they can shove more amps to it.

[@Thracium]

Good Luck!

[@mtb717]

Nice project, sick biker!

[@Matdog2010]

Powerful!

[@Mclovinthedank]

I have wanted todo this with my old 26 inch for a long time.

[@kriztyle5295]

great content, spread sustainable ideas!

[@TheRealSamPreece]

Mining lithium is anything but sustainable.

[@Fred_the_1996]

Sustainable is walking and maintaning a bike for as long as possible

[@adiem1653]

Bought a rear hub kit in uk via Andy Kirby - costs over £750 so all you others saying €400 is a lot are lucky!

[@michaelteale6386]

Excellent video. You show mistakes as well. That makes us all feel better about our own limitations lol

[@grantweller9300]

Great video very helpful, can I ask you advice please. I've just brought a 2022 giant talon 10 x1 speed. What size rear cassette do I need to have in the ebike kit? They seem to come with 7 speed rear cassette as standard will that be too small? Some kits come with 8 or 9 speed but not 10 ,any help would be appreciated thanks👍

[@SolRC]

Thanks for the cool video. I really like your bike workshop mat, can't find it on the interwebs, what's it called?

[@raymondg6823]

your bottom bracket has the convenient ring to unscrew, how do I fit the PAS sensor on new style bottom bracket without that ring?

[@rapscallion70]

Can you add or activate a limiter so it can’t go over a certain speed? 20km/h is the limit where I want to ride.

[@javier65360]

the invoice for the kit comes out specific 250w ?

[@wintermute740]

Curious if you've had any problems with water intrusion into the control box since you've done this mod. You probably would have better off mounting it properly so that the wires would have had a drip loop at the bottom, which would help prevent that issue.

[@lukaskaciasvili9351]

Hi Daniel. Is PAS installed correctly? I always see them on drive side (right) and when saw you to go on non-drive side, I thought that it is great hack and less pain. But then you installed that little ring with magnets facing out. Shouldn’t they face in, towards PAS sensor?

[@acelectricalsecurity]

I installed a similar kit, but the controller was inside the battery so it was a cleaner install and neater, it was a yose power kit, and I can get 40 plus miles from it. The bike I used was a giant xtc from 2011

[@millsshumps1968]

Dillenger make a similar ebike conversation kit where the controller is built into motor.

[@acelectricalsecurity]

@@millsshumps1968 yeah your right, but it was more expensive

[@koharuebikeebikekits4838]

similar design to my kit

[@scherzo0o]

If I have an 11 speed cassette, will I find an adequate rear wheel?

[@majordelays4909]

Anyone managed to convert maxle rear hub?(. Norco sight 2014)

[@mikec3405]

11:46 mounting the controler upside down will not get rain water in it?

[@sasankasulakshana1329]

Is this unit water resistant?

[@markifi]

the one you linked with comes out 514 € for the rear wheel 500 watt 26" version with the smallest battery.(wheel from spain, battery from poland, no import tax on either). not a great deal. we recently bought a 320 wh front motor ebike new for only 422 € after incentives called the neuzer palermo / stonefly ebike, it's also chinese stuff but 800 km later it seems quite dependable.

[@detectorismocomkevin2386]

I can find 1500w rear, for 340 euros on aliexpress. I will buy this next month

[@markifi]

@@detectorismocomkevin2386 battery included, and after import tax? Buy it. Also look up grin technology's lecture here on youtube on hub motors if you have the time/are technically inclined.

[@detectorismocomkevin2386]

@@markifi 304 euros and for transport is 30 euros. The kit is 1500w that means you will get 50-60 km /h very powerful. Bought from Spain you don't pay at the customs and the Vax tax is already included. The battery is not included, but if you want a good battery it will be 400 euros for the battery itself. 48/52v 21ah for long range 80 km. Total is 734 euros. Much cheaper doing this than buying an ebike in the shop with 1500 2000 euros that doesn't have throattle goes only 25km/h just pedaling.

[@Crowfist]

@@detectorismocomkevin2386 ?ty

[@Marcpowerful]

please convert a road bike with drop bars (challenge: try to hidde the controller and cables as good as possible)

[@fahed2000]

I assume it isn't a good idea to have the controller mounted upside down. Rain will follow the cables into the controller whereas if it's the right way up water is unlikely to go up to the controller and cause water egress.

[@DirtDigglerDetecting]

I wnat to put battery on top of top tube so it looks like Motorcycle hehehehe I want to build one so bad this summer.

[@blex5579]

are you former cannondanny by any chance? rings a bell here lol

[@andyortaaslan80]

Put a magnet on the forks and make sure they are steel. There is a lot of torque on dropouts so aluminum is not preferred even with torque converter.

[@scherzo0o]

Lovely! can one install the pedal asist sensor if one has a hollowtech bb/crankset? I'm a 40+ man that wants to keep the pace with his son, and that seems to be the only way...

[@hjeffwallace]

There are lots of alternatives to pas. I’ve only built 4 ebikes. My first doesn’t even have pas. Just a throttle (I use my brain to choose how much to boost). You can get a split PAS that clips onto your bb, without removing the crankset. The most common PAS only requires removing the left crank.

[@scherzo0o]

@@hjeffwallace good point to use the throttle as single controller. Thanks.

[@bloodymary3008]

Looks like I need to buy a bike now

[@bloodymary3008]

@Denis Antivatnikov No4 Velo Photo ZP No2 well yeah that too 🤣

[@robert4027]

I'm looking at 500 watt front hub motor kit. Some are 36 v and others 48v. What is the difference ?

[@hipupipisakula3498]

48v is little bit better then 36v it has little bit more speed then 36v

[@robert4027]

@@hipupipisakula3498 ok cool thanks very much

[@kpsig]

I converted a bicycle too, with a cheap control and wheel; however I bought a good battery set a BMS separately.

[@Nalladolla32]

Should have flipped the box to stop water ingress.

[@djVania08]

Hi, what is your experience after a while with this kit? :) thank you

[@monkeyattackedmyass5435]

Sadly it seems that "SickBiker" doesn't answer questions, comment, or interact with anyone at all.

[@LJC5865]

Now going on his 16th 250 w..but it works.

[@kentjoosten8149]

How heavy is the battery? It's just mounted with the water bottle cage bolts?

[@CARLOSSANCHEZROMERO_YOGIBEER]

battery entre 3,5 y 4,5kg

[@koharuebikeebikekits4838]

10AH 18650 is normally 2.5kg. with 4 screw & bolts, it is ok

[@Free__Speech]

A battery with the controller bult into the unit it far better. Too many wires & exposed wires

[@ordinarypeople801]

Where's the second video?

[@scherzo0o]

in the making :)

[@kaioberst1899]

Feel like a kid again!

[@angelajerez8267]

Please let me know we're ket one, from Guatemala City

[@Silencesma]

I’m trying to find a battery for my pexmor rear wheel hub motor can you please help me 😅 1200 watts

[@Kirt44]

Just need to be the same voltage

[@42luke93]

You know something. This doesn't come with the battery and is $260ish dollars. I click the link for the battery and that is another $210. $450ish in total. This makes me realize the swyft kit is so worth it. E bikes I guess are just expensive, I can never find a full set for like $300. Edit: Those are like $500 with long waiting, you can get it for twice the price earlier.

[@somethingelse9535]

You can get more battery than what the swyft kit offers.

[@koharuebikeebikekits4838]

disc break is important as the speed is much faster

[@42luke93]

250 watts is really for pedal assist with thumb throttle on flat surface, it should be fine.

[@tin2001]

Not on a EU legal 250W pedal assist bike. It won't power you above 25km/h.

[@bashkillszombies]

Wouldn't it make more sense to put a hub motor on the FRONT wheel and not piss up all your gearing and crap? And that way if your hub motor fries you can swap it out so much easier? That way you could also have a petrol motor to the rear wheel if you wanted.

[@h8ter678]

are you special

[@xilrondo2907]

no, it doesn't. you get better traction with a rear hub vs a front hub, the frame of bikes is much stronger on the back than the front, and the extra weight doesn't take getting used to so you're far less likely to end up hurt (as steering is always with the front, the back wheel being the trailing one makes it much easier to keep using if the balance shift is near the back) rear vs front also provides more power, in part thanks to the ease of them utilizing gears and getting to your pedal movements

[@steverushaw8761]

Cut those Zip ties flush..they are like razor blades..

[@denseljosephs9500]

Disk brakes are a must as well given the extra weight of the additional components.

[@jamesowen418]

Not really, only a few kg extra weight. Rider weight can vary much more. V-brakes are easily capable.

[@denseljosephs9500]

@@jamesowen418 Not when it's raining.

[@Txb4g]

@@denseljosephs9500 so fat people cannot ride when it's raining unless they have disk brakes... What?

[@jamesowen418]

@@denseljosephs9500 yes, even in the wet

[@denseljosephs9500]

@@jamesowen418 That's probably why they're not used on new bikes anymore. Time to move with the time's mate.

[@argyllesomera869]

Im early

[@jamess7681]

22km/h is like 13 mph

[@kirby317]

Yeah it's a sweet wildly cheap build to get up to running speed, but for like 700 I built a 2000w 32mph

[@garytruex9336]

NO TORQUE ARM!!! Good chance the motor axle will spin, damaging the axle, the drop-outs and possibly the rider. Is this jerk supposed to be a pro?

[@711rico]

what exactly are you saying? I'm converting my bike tomorrow but i have no clue about what you are talking

[@amosluyk]

Which jerk? Only jerk here seems to be you with the insults, but I'm not an expert in diagnosing jerkery... SickBiker is a cyclist. Not an e-bike specialist, as you would know if you bothered to check. If you want an expert, there's loads of them on youtube. Good luck with your search ;)

[@adiem1653]

@@711rico a torque arm is a piece of metal on the rear axle connected to the bike frame to basically stop the wheel coming loose

[@Marcpowerful]

bruh 250W...torque arm is usualy needed above 500W

[@wallywest2360]

Nowhere near powerful enough to worry about a torque arm.

[@mateuszandrzejczyk3923]

Siema

[@hfigo]

50 -100€ bike 250 kit

[@CARLOSSANCHEZROMERO_YOGIBEER]

mas 350€ battery

[@CARLOSSANCHEZROMERO_YOGIBEER]

600€ kit+battery

[@sgas]

ali batteries sus

[@rodgermoore588]

Bgatewway

[@amychinlai4249]

Why just ride motorcycles ? On& off road ?who dif.?

[@Paganiproductions84]

the ceapest is old citybike whit chaincover no e bike needed

[@ducksfolif977]

unless you're in San Francisco on a hill lol

[@vitasvkyborg131]

Первый прокол заднего колеса покажет тебе насколько ты ошибся с выбором колеса.

[@DamirPateev]

согласен_)

[@edwardfletcher7790]

250w is totally useless....

[@zgabeartzaiftodie8615]

Not really....25 to 32 mph I tink it's ok

[@Seecret]

is 1000-1500 good?

[@billywizzer1084]

It's all that's allowed in the UK

[@edwardfletcher7790]

@@billywizzer1084 Yeah same in my country. Even in Holland 250w would be useless !

[@dugldoo]

No! 250 is great, as he clearly demonstrated. We have wonderful bike/walk paths near me. But they're filling up with efatbikers who are newbies to cycling and don't have good bike handling skills. They think "bigger is always better" and they get going on their new, very heavy, hard-to-handle bikes going 25 + mph and make the paths very dangerous for walkers and other cyclists ... and themselves. Yet they seem to care not at all about anybody else.