Building an Electric Bike

[@SuryanIsaac]

That transition at 8:03 made me very happy

[@UffDaDan]

You'd love Clickspring... For all reasons but especially that.

[@iMidnight_]

:Thumbs_Up:

[@kenrow3604]

I thought I was the only one that got a mini climax at that point...

[@diabloflare8304]

Suryan Isaac best happily comment ever 😫👌

[@mobilgamerboy4330]

Suryan Isaac rewatched that clip like seven times

[@graysonsmith7031]

"This is my homemade electric bike. It isn't powered by a battery, instead a turbine fed by a pressurized tank creates the electricity needed to turn the motor. The fuel efficiency is pretty good as I only have to get off and pump the tank full with a bicycle pump every 30 feet."

[@kalleguld]

Maybe you could mount the pump to a flywheel, so you can use the pedals to pump the pressure tank.

[@vflinck1324]

@@kalleguld well that sounds like a regular pedal powered bicycle

[@doodlebug6833]

@@kalleguld big brain moves

[@theshinken]

@@kalleguld ingenious!

[@vitordelima]

The closest you can get to this is using liquid nitrogen engines.They are real and the energy density is about the same (terrible) magnitude as Li-ion.

[@solensovida]

Mate, you are probably not reading comments a year after the video is realised ... but for real, what you are doing is inspiring. You provide a lot of honest knowledge to the public, and on top of it share the fruits of your journey. You upload the results, the final CAD files, the methods and the means. Hats off to you, sir. May your channel be as plentiful as your great work.

[@bhx7527]

yes thank you to him, i am building one right now

[@AkaiSentoki]

​@@bhx7527 how did it go? did you succeed?

[@prithvirajkanne]

He is the man with a lot of passion and money.

[@xenomorph1317]

And a usefull brain and not a waste off skull space. That being said, i don’t see any use for the pedals anymore.......

[@mychannel4334]

a lott

[@adruvitpandit5816]

Passion not money, its the patreons.

[@rajendravishwakarma3825]

Ok

[@matthewloyd1294]

5

[@kacperfilipek8461]

Have you considered adding a gearbox, so that you could possibly have decent acceleration as well as maximum speed?

[@HarryPorpise]

That would be awesome :D

[@elcartero5065]

Or you know..... you could make a pedal bike and not get lazy with a electric bike. Were all gonna become fat

[@harrisonsmetana2506]

Much more fun to just strap a 2 stroke engine to a bike and it makes a much cooler sound

[@Endidixknsej]

@@harrisonsmetana2506 yesssss

[@djmg6016]

i think modified gearbox of a bike using a drive shaft will be nice..just a imagination

[@araiza444]

Yes, I am an engineer, but only watch this kind of content when relaxing. Do plenty of engineering any other time... Thanks or your effort though!!

[@LIFEOFSTUFFEDANIMALS]

8:01 that edit was absolutely amazing

[@DaddyM7MD]

Ikr its simple but cool

[@thereignofdando]

I went to type this exact thing but thought I’d check the comments first. Such a slick edit!

[@FlakeRabbit]

Bro I didn't even notice

[@archive8080]

It was okay...

[@drone51]

Everyone: *burns motor*, buys new motor. Tom: *burns motor*, rewinds motor...

[@klausbrinck2137]

You have to rewind those cheap motors anyway with thicker wire for efficiency, and to modulate kV, dependent on the windings-number.

[@cyber_robot889]

True Russian

[@drone51]

@@cyber_robot889 what a lad

[@pvs1681]

@@drone51 I think you meant to say; what a comrade;) lolz comlad!

[@drone51]

@@pvs1681 HAHA yes my comrade :)

[@mikef-gi2dg]

Interesting watching you work thru all the unforeseen issues as you went along. Don't know anything about companies who build electric bikes for sale, but if TOM decided to go into the business, they might find they will eventually have some stiff competition in the future.

[@Iexpedite1]

At 6:59 Tom said, “a lot has changed since then. Suddenly and seamlessly, I am seeing a fat wheel bicycle sliding sideways. The rider isn’t Tom. Took me a second to realize that KZbin had transitioned me to an ad for a bicycle.

[@positivemelon7578]

The switchbike ad?

[@thecaptainnoodles]

*laughs in* youtube premium

[@sleeptyper]

@@thecaptainnoodles AdBlock for the true winners.

[@jordanhorst6]

same thing happened for me lol

[@MaEtUgR]

*laughs in* ABP plugin

[@weaponizer4444]

I would love to see you making proper electric motocross bike in collaboration with colinfurze, you in charge of making battery and electronics and he making the frame.

[@dast_uk]

Love a bit of Furze. I saw this and thought Colin could do something like this, then wondered if he had as I haven't watched all his videos yet!

[@MrChoklad]

that would be an amazing collab

[@monicapatri9813]

Mira, yo tengo el motor central Aston Rider y lo vengo usando bastante bien. Lo he cambiado de mi rodado 16 plegable a mtb 26 y ahora en una 24. El kit lo cambia mi marido en unos instantes apretando un tornillo viene todo conectado y la pantalla tiene cargador de celular

[@r00kiet80]

u mean making the flame

[@Professor-Scientist]

colinfurze is an absolute douche and not to be taken seriously. He is aimed at a younger audience.

[@jmcbike]

I built a display similar to yours, which keeps track of amps and volts (watts) vs time, so the battery charge can be tracked. It also allows converting the controller from a speed control throttle to a watts controlled throttle, as you mentioned you did. I like that, it is more motorcycle like and you can then set preset power assist wattage amounts- speed might change but watts can stay at the preset level. My motor is a Bafang BBSHD with the internal controller.

[@socialus5689]

"I Know most of you are engineers" Sir, i'm a useless 20 year old.

[@PhG1961]

I wouldn't say you're useless ! You're at the beginning of many challenges. You have many options and choises. Choose wisely, do the right thing !

[@yoctometric]

Your youtube channel shows evidence to the contrary, You are quite a skilled engineer of digital vehicles!

[@ValentineC137]

*_useless 19yo noises_*

[@DonVigaDeFierro]

Hahahaha! I'm a useless 23 year old!

[@buildmotion1426]

Bah, think of yourself as a battery looking for it’s pack.

[@isaiahhiggins]

8:04 wow, that was smooth

[@iMidnight_]

yup

[@caseyharwick8455]

I’ve been looking for a video like this. I’m trying to build an electric skateboard (but with tank treads) from scratch and couldn’t find any resources on building electric bikes or anything

[@tau93]

The editing in this video is incredible, particularly the transitions. You also did a great job of packing a ton of clear, concise narrative along with explanations and data into just 14 minutes.

[@bobbyjoe4012]

"Come over" "I can't I'm busy babe" "No one's home..." 3:07

[@kreidosdaddelt1196]

Golden Boy at its best

[@shaunlastname391]

@@zacharyj6465 maybe they are out smoking drugs with a midget

[@SkvalaGaming]

"Goes to her home" "There's really no one there"

[@frederickschulze8014]

I usually don't laugh at these but this one got me

[@aneyelesspig8899]

@@SkvalaGaming well, she said no one's home...

[@DanielinLaTuna]

Fascinating discussion and demonstration. By the way, Harley Davidson uses the two belt system, with the motor driving the tranny, and the second belt driving the rear wheel. I wonder if it's to make up for an underpowered motor.

[@juggernautz]

Harley designed the 2 belt system to reduce sideways torque and its a lot quieter. A 1200cc Harley has 85 horsepower and up. The 125 cubic inch engine produces 130hp. Similar hp to a Toyota Prius. Custom engines can be 2.5 liter or 3 liter beasts. Also a large rear sprocket increases power too. For a 1000 pound bike they haul arse!

[@KingArttu]

Now this is some hardcore prototyping.

[@kenyamagami6669]

Hi guys I finally got my degree, in mechanical engineering and I've been watching this channel since I started college. I just want to Thankyou for always inspiring and fueling my passion on engineering and without you guys the engineering KZbinr. I would've given up quite a long time ago.

[@animefordbz]

ken yamagami Congratulations!!! That’s an incredible achievement :^>

[@DarthZackTheFirstI]

great how you got the theory stuff done! now you can watch youtube how to actually build things :D

[@2SUB-TV_space]

How to make freewheel? Much needed for this project!

[@artyom6654]

I study for a programmer but now I regret about it and wanna be mechanical engineer. I dont want to study as bachelor again and wish to proceed as master in engineering

[@johntheurer2265]

For the filter on the motor there are hobby filters for RC cars. That material would work great

[@b.c.2281]

I actually like the sound of your belted setup vs. the hub motor. Gives it a bit of character.

[@miklonish]

Amazing engineering work Tom! Love the dedication to the project and your constant strive for optimizing performance! Just don't forget about safety, your batteries are aimed directly at your valuables!

[@2SUB-TV_space]

How to make freewheel? Much needed for this project!

[@omardude39]

This was absolutely fascinating!!!! I LOVE all of the thought and consideration that went into your various iterations of the project.

[@RabbitsInBlack]

Sounds like an engineer, always trying to reinvent the wheel.

[@andreabena7421]

And he have a lot of Money that he should use in another way...

[@BlackSun717]

@@andreabena7421 He should use his money to have fun, as I see he is having fun, so money well spent!

[@landene8230]

@@andreabena7421 have you ever heard of a hobby

[@trexmidnite]

He reinvented stupidity, he said it himself.. real talk

[@amelialee9996]

An engineer would consider the wasted energy converting electric to mechanical force.

[@SuomiFinlandPerkelee]

I think you are spot on with this video, as well as your assumptions on your audience. I’ve gasping at name brand electric bike prices and what you get for the money. Of course there is trial and error + hundreds of hours work involved in doing this DIY, but when it’s a hobby, all that matters is the enjoyment (and cost of parts). The idea that I can convert my existing bike to electric is tempting in so many ways, and your videos have shown that while it is a lot of work, it’s not black magic.

[@cho4d]

Check out the BBSHD series if you want something of a kit-form diy thing. I have the weaker, older bbs02 and it's a trooper. over 3k miles so far. i've seen people put 10k miles on them with only the sprocket wearing out. The HD versions are beefed up in every regard.

[@SuomiFinlandPerkelee]

@@cho4d I'll check it out, thanks for the tip!

[@wolf1066]

This is one of the most useful DIY electric vehicle videos I've ever seen. The explanation of gear ratios and kV rating was very helpful.

[@ultrainstinctshaggy2745]

" MO POWA BABY!!" - James Pumphrey

[@milan12]

Donut gang

[@alexoghoorian4631]

This is everything YOU need to get up to speed on electrical bikes!

[@cosmicscommentary2361]

why do people like electric bikes? Im nolan and this is wheelhouse

[@TheUniversalid]

Why did I read that in his voice?

[@asrithk.v6074]

i did not seen this much passionate and dedicated person in my entire life..he never gives up..!

[@automobilesarefun409]

I have not seen? Or I did not see.

[@nosnibor800]

Thats because he is an engineer.

[@olivertrevellyan9789]

i think the next best idea for the new version would be to have a functional gearbox type arrangement, therefor you can have lots of torque down low but still a fast max speed. Whether is is through a servo that can mesh a gear to the belt, I would love to see how you would do it.

[@PhantomPanic]

4:31 The bench looks like it has a melted bicycle tire for the armrest.

[@brianh.000]

Yeah, I thought that was some sort of piece from a failure at first...

[@sweeflyboy]

I thought it was the belt that powered the bike.

[@trexmidnite]

Think inside the box you dummy

[@brianh.000]

@@trexmidnite ???

[@randall8686]

Probably one of the most interesting KZbin channels out there

[@alienspecies6872]

This man researched the whole E-bike building by R&D it many times.

[@tilmobeans5127]

This dude could have just bought a nice electric motorcycle but looks like he had fun doing this

[@damavox]

true but he did at home, what some companies spend 1000s on and hire a $100,000/yr engineer. Sure he spent more money than it would be to just buy a kit or an electric motorcycle but what he did is actually amazing, for just using Google and his own, non professional engineering mind.

[@drumkommandr9779]

Now, let's try it with a vespa, and a starter motor. ^_^

[@hiwayhighway9925]

Plus electric motorcycles are pretty expensive already.

[@kevinjoseph7322]

It's about chasing your dream

[@alastairsharp7829]

He did well!

[@DuncanAitken]

3:06 : haha, perfect timing with the jet aircraft going overhead.

[@offgrid2010]

I just starting seeing vid's w multiple motor's. Usually 775's and it seemed like there could be some problems there. Your application answered that!

[@jhsevs]

This video has given me a ton of inspiration and ideas. One of which being using the crank as the speed controller, either by using an encoder directly, or passing the crank through a back sprung differential with a potentiometer mounted to the differential bell. The latter would allow for you to use another pot on the handlebars to set the max amount of electric assist, and your additional pedal pressure while cycling normally would propel you forward electrically. This way you would still have to cycle for the sake of working out, but you would get additional range and some help up the steepest hills. This could motivate some to get on the bicycle seat more often.

[@2SUB-TV_space]

How to make freewheel? Much needed for this project!

[@hajmola7605]

C'mon Tom; Metric!!!

[@davidbergmann8948]

Yes please! 🍄

[@pwhnckexstflajizdryvombqug9042]

30 mph is 50 km/h. If you learn to convert the two it makes life much easier than complaining 😂

[@jeidun]

El Emeno Pea 90% of the world uses metric. it would actually be more helpful if he used metric, than some wacky numbers that dont make sense lmao 'how many yards in a mile?' '1760'

[@ElRealista7]

Metric is the one and only

[@jamesmcgee7723]

I wholeheartedly agree! The UK uses metric for nearly everything except distance. I think that the golden rule should be "Don't mix your units. Metric OR imperial, not both!!! This is the sort of lunacy that causes accidents like the Shuttle Challenger disaster. Better still... just use metric.

[@woodworks2123]

I love how you casually speak about, I just redesigned this and built one of these as if it's simple. Your a very talented guy Tom.

[@NickyP500]

A word of warning, I've heard of people in the uk getting pulled over by the police. If your ebike is over 250w you can get done for no insurance, no road tax, no Mot, driving a vehicle with no registration and depending on if you have a motorcycle licence etc. Otherwise this is frikkin awesome.

[@krcb197]

500nickp I am sure @tom was responsible only testing on private land with the land owners permission.

[@philipm3173]

500nickp meanwhile in the US people jerry rig weedwhacker motors onto their bicycles with no penalty 😂

[@barneybarret6088]

What 500nickp says is true. Max 250w and can only assist and not be throttle controlled. Otherwise it is classed a motorbike with all the legal implications. Which is a big shame!

[@stevefoster7113]

Not only that, your creation will be sent to the crusher. What would be much worse is if some idiot inspired by your video mows down a pedestrian in town or whatever, as people don't expect bicycles to be that fast. You should pull the video and work on something legal.

[@tuomas_h]

Fun fact: "liitokala" means "flying fish" in Finnish.

[@sooperbear]

How do you pronounce it? 😂

[@tuomas_h]

@@sooperbear I won't attempt to type it out phonetically, instead I suggest you copy it into Google Translate and click the speaker to hear it. It's quite accurate.

[@micahkruger8958]

Tuomas Hämäläinen lol how in the world do you spell your last name?? 🤣😂😂

[@micahkruger8958]

Sorry. PRONOUNCE lol

[@michaeljones5681]

Your the type of person I wish I knew in real life

[@eonreeves4324]

8:30 such a clean cheat, that is something i would do lol "if it works - it works!"

[@Metalrasputian]

2:17 "And this began my quest for [mo powah babeh]"

[@subtopewds6964]

Pop up down head lights

[@ShawnSavageTeachings]

Garrett El Programador Ineptos donut

[@Director_Orson_Krennic]

@@subtopewds6964 R-R-R-R-REMIX! Roll up up and down headlights!

[@localsms]

I literally said that in my head! LIGHTNING! LIGHTNING! LIGHTNING!

[@kenta326]

Slap a ls on it

[@OnerousEthic]

Wow! Your problem solving skills are impressive and diverse! Well done!

[@madaxe79]

I wish I saw this video when you made it, I can solve the first two-motor problem easily for you... In conveyor systems, when we need to add an extra motor, we do it in a similar way to how you’re done, it, but, the second pulley is made slightly larger than the first, to it “over-drives” creating tension in the belt between the two motors. This also has the benefit of allowing the first motor to inout more power into the system than it normally could due to the higher t2 tension. What you would be better off doing is: put the second motor in the place of the pulley between the two motors so it’s running on back side of the belt, and make it’s pulley around 1.5-2% larger than the pitch diameter pf the primary drive pulley. The secondary motor will obviously have to run in reverse, but you will get massive benefits over your other arrangement.

[@TurtleSodadrives]

Your intellligence facinates me immensly. I can't stop watching your videos.

[@k7y]

you really need top stop using drone motors, you're having dust problems because that motor was never supposed to stay close to ground.

[@richardcarew4708]

They are sealed better... the balance board Segway type can run through water and keep right on going.. amazing, this modern technology, eh?

[@miguelantonio7135]

@@richardcarew4708 wtf? 😂 They have big holes in front of the motor, how are they seald? They have a advantage of better cooling but in long term, running drone motors close to the ground gonna ruined them.

[@richardcarew4708]

@@miguelantonio7135 perhaps you should look at one of the diagrams provided by the manufacturer.. I don't own one.. I have seen the information, but didn't look at it.. despite rumors to the contrary bro.. I don't know everything.. worse luck 🙃

[@richardcarew4708]

My phone suggests "anything" in the last sentence.. phone humor.. no doubt

[@samueladitya1729]

@@miguelantonio7135 why not use sealed liquid cooled motor?

[@stevenparkin6486]

Tom. Thanks for this highly useful video. It progressed quickly but not too fast. You explained key points without unnecessary detail. It was perfect! - Steve, Utah USA

[@pleopsidium6960]

9:43 gotta love rapid engineering in photoshop

[@3.0colorado21]

I’m attempting to build a mountain bike wheelchair for my buddy... it’s a lot of math. I like the idea of an electronic motor to assist with the uphill and rough terrains. This was very informative and cheaper for me to watch your trial and errors lol. Thanks

[@spelare1]

"I know most of you are engineers" im 14 but probably will be so come back in like 7 years

[@yolandashikers3666]

waaaaaaaaaat, 1M view in 4 days Tom!!!! ok simple, it is a cool video mate! watched it 2 times😉

[@optichardscope7877]

@@yolandashikers3666 same

[@jmad318]

He says many of you, not most of you

[@garethbaus5471]

Probably more like 8 or 9 years, most engineering degrees take 5 years unless you have the option to take calculus in highschool, and that is assuming you don't take a semester off for a co-op.

[@amedeoresistente1646]

@@yolandashikers3666 5%

[@josephboehlke6368]

13:22 What system is this you're using? I'm interested in getting my hands on it.

[@jeffreyturck274]

Very well done, i like that you included the failures, well i believe failures are the only way you can learn the best ways that work. I am impressed and certainly think you have all the right stuff to succeed in any project you choose. A lot of what i see you working with can be "reverse engineered" into other fields, i wish we were neighbors i need your expertise to combine with my wind turbine projects to make power like nobody else can.

[@savashzaynal6502]

As an engineer this was very cool and inspiring, definitely worth subscribing. Keep up the good work young man and become a great inspiration for today's younger generation.

[@kentakuruishere9858]

Sounds like a happy R2-D2 rolling downhill

[@nickgalena1]

you have learned a lot by doing „mistakes“ - While my long time in sports car industrie I really liked to have engineers like you around me - which burn for what they do. Talented and inspiring !

[@delargent2080]

dude this is amazing. i wish i had the tools and material to make something like that

[@MrWilfAdventures]

Always great to see innovation and enthusiasm on your videos, but in this case it's a shame that legality of elexctric bikes isn't discussed at all so encouraging people to build bikes which are illegal to use in the UK - anything above a 250W motor with an assistance cut-off at 15mph would make the bike a motorcycle and need a licence and insurance as such.

[@robmac3702]

Agree with this comment completely. Please say that these are private roads otherwise what you are doing is illegal. Also, as this is a new kit, a throttle is also illegal. I do like how you are designing new ways for an electric bike but maybe look at being more efficient by powering the crank rather than just the rear wheel. There are kits out there for a crank with a freewheel in them so when powering the crank, the crank arms wont spin.

[@elementaldraco]

The requirements in the UK are referred to as EAPC www.gov.uk/electric-bike-rules

[@rodrigoc.goncalves2009]

I'd say the odds of him getting a fine are very very slim. Everyone who buys e-bikes removes the speed limit anyway

[@tams805]

@@robmac3702 Those were most certainly not private roads. He should stop, especially now that he's put evidence online.

[@robmac3702]

@@rodrigoc.goncalves2009 Whilst that is very true, as a working engineer, one of the main prorities of a task is to design something which is in the confines of your local laws. After that, design using best practices such as British Standards and ISO's. There are many people hot rodding ebikes on youtube but one of the main reasons many people watch Stanton is for the informative and logical approach. By not putting in a disclaimer in the video he is putting himself at risk of prosecution which isn't very logical and may stop the great video output that we can expect to watch from him.

[@Electronics-Tech-1977]

Oh God what a technical mind and work you do. Great job indeed. There is no comparison event to understand your projects. I am feeling empty of my upper portion.😂😂

[@MrNaufan]

12:48 : Let's call that Stanton's Equation

[@dharmayudha3401]

Nice

[@MrNaufan]

@@dharmayudha3401 is it more like theorem or law?

[@MisterTalkingMachine]

Stanton equation would be a good option.

[@DeathracerXD]

yes stantons law

[@klausbrinck2137]

works only for 26-inch-wheels...

[@madmushroom8639]

What a great transition at 8:00 :D Awesome video as always!

[@iMidnight_]

xD

[@CarlPants885]

I always wondered a thing that i've seen in all kind of DIY E-bike, why don't you connect the motor to the chainring mayby by adding a chainring to make it fit because there is also the chain it self as a problem, but still, wouldn't it be better to do it so to also have gears?

[@Seelingfahne]

I love Vedder’s speed controller project, it was a big inspiration for my university capstone project. Thanks for sharing your whole process, failures and successes alike :)

[@harlysweeney2625]

The guy deserves every view

[@geegonebadoin]

It sounds like R2D2 screaming. This is amazing

[@LeglessWonder]

8:04 that transition was smoother than Luther Vandross

[@ujjuwr2785]

This is amazing. You're really passionate and I wish you find sponsor to start up your own e-bike company.

[@alexythemechanic8056]

What they've done isn't legal on UK roads. Fine for a KZbin video, not commercially viable.

[@wcrsb]

Its because of too much power/speed or?

[@keithking1985]

it's very rarely my "DAD" will be glued to any video i show him on You-Tube... i recently bought an E-bike! and it was absolutely the best money iv ever spent in my life."EVER" I'd recommend one to anyone. but my god... 'TOM MY MAN" THAT WAS AWESOME & LORD COULD IT MOVE.. : ) when i think of my 30kg bike with its 20inch wheels running out of battery, & im still 5 miles away from home.. it make's me want one like that. IV SAW LOAD'S OF 'MAKE YOUR OWN EBIKE VIDEOS BUT... THIS WIN'S : ) HANDS DOWN.... PURE CLASS! : )

[@PieterSchulteFiefie_lol]

Tom, you're really gifted. You'll do well in life! Keep it up pall!

[@rikilshah]

This guy is setting new goals for DIY projects!

[@isaacsrandomvideos667]

Motors shouldn’t be for cars, but are perfect for smaller uses like this. Absolutely perfect.

[@kize1716]

9:07 thoes are finnish batteries. And "LiitoKala" means flying/gliding fish. Juu olen suomalainen.

[@dcrypter87]

firma on kyllä netin mukaan kiinasta...

[@johnhenry3255]

This would be a perfect diy or buy

[@davincidamaster5311]

"Great Scott!" refference?

[@juggernautz]

As a non-engineer fostering my mad skillz I'd like to build my old 1986 Raleigh Grand Prix to buzz around on and borrow from this awesome design. To reduce weight, I will try capacitors instead of batteries, they work great in cars. Bend the pedal stems outward an equal distance so the left side pedal will clear the hub on the next design unless I find another design that allows pedal play with no leg interference. A bicycle light generator powered off the rear flywheel or tire could slowly recharge the capacitors. I know nothing about regen braking so I will yield to a greater design because mine will look like a heap till I fashion the right parts or buy them.

[@bdr420i]

This is the definition of "GOD level" innovation 😁👍

[@troyna77]

In my opinion your the tony stark of electric bikes. GOOD JOB! thanks for the brief tuts and inclusive data on mount designs and formulas.

[@DoctorQuinlan]

So what was the total cost of JUST THE parts on the new bike (excluding the frame)? Could you add links or names please? Awesome video.

[@xjulek4714]

Hey Tom, I would love to build an ebike like this! Could you make the files public? Thingiverse?

[@snowcrazed1]

Sensational, thanks for sharing - clearly a lot of time spent improving, and we all get to benefit from your past issues!

[@RogerMenzi]

Thanks for this research, your work and your videos

[@DavidSprogis]

Thank you for sharing all the details, including failures - so instructive!

[@thecube5861]

Gonna try n build one from a scarifying machine motor cos i got one laying in my shed. Gonna keep it as cheap as possible. Wish me luck!

[@karmesancheese]

Don't die!

[@thecube5861]

Nono, you dont understand: that's the end goal!

[@Hellsong89]

@@thecube5861 Yes, but unless you are "name greedy corporation like apple" your design should have longest possible utility life, of course balanced between quality, what it is designed to do, price and such factors.

[@Peter.Fields.]

Toure a genius ! You’re … incredible and I’m so jealous of all of that, how inventive, how smart you are ! I love it !

[@alessi4249]

How about using an optical sensor from a mouse as a ground speed sensor and revisiting your abs video. Great vid!

[@tshepp89]

They need to be pretty much on the ground to work. Your mouse won't work after you raise it about 2-3 cm

[@alessi4249]

@@tshepp89 you can put a lense in front of the sensor to adjust the optical plane

[@GavinRemme]

Damn, you’ve put in a lot of revisions!

[@edwardsmith7131]

Sometimes "engineering" is admitting that that thing you did was stupid and fixing it. Over and over and over again. Failure is always an option.

[@thomaso6579]

You just made a 15 minute video about how you built and rode multiple unregistered motor vehicles.

[@renzolieverloo1255]

Hi Tom, Really nice video recab of your learning curve during the build of your own ideal electric bike. I can imagine your feeling of gratification when you had reached your desired result after 3 years of work. It's not about having an electric bike, then you just buy one, its about knowing how everything works and creating your own optimal design. Pushing your own knowledge to get the most out of every mechanical and electrical detail for optimal results. People who even take time to create a video about there years of work and contribute by sharing their knowledge deserve at least a thumb up. Again, impressive piece of engineering Tom, thanks for sharing. Not one second of my time was wasted watching this video.

[@dbtest117]

Yep. This is why I watch this video for the 11th time. There is no e-bike without some drawbacks I don't want. I'm investigating building a bike that can take cargo and possibly be charged with solar, that can be locked in a way that no one would like to put the effort into stealing it.

[@mrsmith4662]

Really good! I admire your tenacious, constantly changing/improving/refining your design - true development engineering. I don't know why you don't go on Dragons Den, patent all this, or work collaboratively with Dyson!

[@northernfreelance5788]

it's called Bafang Motor. Or from a series of BBSHD Mid Drives. He's trying to re invent the wheel. Motor at frame, small gear. motor on wheel, big gear.

[@luke.perkin.inventor]

A handy conversion to supplement the magical "10" number is that peak torque approximately = current * 9.5 / KV . If you're comparing motor and pulley combos at the same current, you will get the relationship Tom found.

[@glennnestell2466]

The beginning sounds like R2-D2 in a fly-by

[@austinwhite9225]

I would work on back breaks lol imagine him hitting the front breaks. “Woooshhh”

[@JohnR31415]

Front brakes do almost all the stopping on a bike, whilst stopping the weight is transferred forward

[@spongeimperium126]

You could probably use one of those T-belt conversion kits for gas bicycles for a belt drive system. I'm gonna try using one

[@aidennicholls]

14:00 is such a good feeling

[@MrBrentles]

Makes you realise how good legs are. Like multi-tools.

[@coreydevl7021]

you have serious skills.. this is maybe the best electric bike on KZbin

[@cghoward70]

“What’s powering your bike?” “Two cans of beans. It’s gas powered.”

[@Pilot_Marc]

Hey Tom, absolutly great video! That could be a start up for selling pre-installed parts ;-). Hopefully more to come, Greetings, Marc

[@EelingStudios]

Hope you never fall off at those speeds, great work.

[@gyffjogofl7676]

You sir, make me want to be an engineer.

[@Verzox]

12:42 ladies an gentleman, here we have new beautiful "Stanton equation"