top speed : 200 km/h acceleration : from 0 to 100 in 4 hours

Great and fun project, but reading the comments, I don't think people really realize how hard it would be to be cycling on that bike! 😂

"This seems like a fun channel" "Buy our NFT" "Nevermind..."

I can't imagine how difficult it is to even get the bike moving with that sprocket configuration! Great video!

Let just appreciate how much this man spends on bikes in a year

That gear ratio will take you to much higher speeds than in the video, if you have the legs to push such a large gear. Wind resistance will quickly be a limiting factor. 53*11, which is a pretty common gear to have, yields over 70kph at 120rpm with a road bike wheel size (700c).

You deliver the maximum torque to the wheels when your crank arm is at an angle of 90° wrt to applied downward force (i.e. when it's horizontal to the ground), and 0 torque when crank arm makes 0° angle (when pedal is at it's lowest and highest positions), hence the relationship between crank arm angle and Force is "T = F*Sin(θ)" where T is Torque, F is applied downward force, θ is Crank Arm angle.. now the wider the diameter of the crank set, the more Force you need to apply, since T = F*sin(θ) increasing F, increases the amplitude of the sin wave very sharply, hence when θ= 90°, you'd need to put A TON of force in order to even move forward.. hence this thing can only be used on horizontal ground, if there's any slope, you're dead. Thanks for reading have a nice day.

Reminds me of how I used to do speed training throughout the entire summer during its holidays. Almost every day, from morning until evening, I would try to ride as fast as I could. My bicycle wasn't really expensive and cool; it was just quite light and had 3*7 speed modes (I don't know how it's called in English). So, by the end of the summer, I was riding on a straight road and gradually began to catch up with a scooter. A little time after I overtook it and realized that I was faster than the scooter. I was in total shock. Well, the guy who was riding the scooter also looked at me like, 'What on earth is this?!' Of course, it was a low-power engine scooter, but it's still one of my highlights.

As a cycle guy who comes out of home at 9:05 and wants to reach destination by 9:00, I want to say that this is a very nice invention.

Riding 60 km/h on a bike without brakes 🙈😧. Nice build, as usual!😎

Love your skill and effort to transform normal bike to a super fast one 😮😮😮

cool, I always wondered how big that crank set would have to be get crazy speeds like that. What angle was the hill??? I went 60 KPH ounce, the hill. It had to be about 25- 30 deg. Pedalling down hill was always my favourite!!! Nice video!!!

This man has done what my intrusive thoughts have wanted me to do for years. Truly one of the chainrings of all time

The fun part is that he built a bike to reach high speeds that does not have brakes!

Bro acted on an idea we all had since the day we figured how bike gear works ! I always wondered how far could you go in term of disc size difference but never expect such a HUGE difference. I expected air barrier to block you way sooner. We don't see the actual footage so 64kph is still hard to believe but glad to see is gear ratio does work ! I feel like a long-time itch has finally been scratched.

Man went thorugh all this work, but forgot to put lube on the fork and quill stem when putting the bars back on. And he spray painted the bottom bracket, but no lube when applying the pedals.

you could've gained the same effect by going to a small sprocket connect to a larger sprocket on an independent axle in the middle of swingarm before going to the rear axle. That would've saved weight, be stronger, and far easier to produce. However, the bike wouldn't be as eye catching at first glance.

I remember riding about 55 mph(88 kph) down a hill on my 1985 12 speed Fuji, and, with it’s super thin tires, I felt every revolution of the wheels with the slight imbalance created by the tiny presta air valves. Scary, cuz’ it was on a 2 lane highway and I had to keep looking back to see whether there were any cars coming behind me. Though, it would have been awhile before they caught up to me.

This is a man of focus, dedication and sheer effon will

These video editing skills were eye soothing to watch, oh and nice bike :D

This guy is almost too bored, imagine if he creates a quad bicycle, seriously this guy is innovative and also very crafty!

This is an idea that I was thinking for a long time. I need this king of build on my bike.

Damn, I know I'm a year late to this party, but I started this video out super excited, it was a fun concept, you opened it on a bike with a gorgeous frame with some real hipster commuter potential and then you announced an NFT project. It's too bad I didn't get past the first forty seconds, I bet the rest was cool.

Pretty awesome, I’d love to see a follow up with how it performs going up a hill ?

NOOO my fav UKpostsr was sucked into the NFT realm

Such a large gear ratio, it means that in the start, you would need a tremendous torque (force from your thighs) to start your cycling, otherwise, the only way to move the bike from rest, the only way is to roll down a inclined road. This would have been better, if you could switch to this gear, once you've built your pace with a smaller gear ratio...

Если уменьшить лобовое сопротивление, то можно добавить ещё 5-10 км/ч, и при столкновении поймать ещё больше переломов. Снимите видео как на таком велосипеде ехать хоть в небольшой подъём.

I had an idea to do something similar, except it was not as refined as the large wheel model you have. It was inspired by a larger size front sprocket that an old friend had placed on a Schwinn he sold me. I believe in the future there will be a mechanism which can be placed on mechanical objects which will increase the fluidity and finess of it's operation, possibly electromagnetic. We're about to bust through old paradigms in many ways. Already have in some instances.

was impressed by the precision of the lines and by the cleanliness of your workshop, as well as the speed of the bicycle

I've always liked the idea of a faster bike for use as an alternative commuter vehicle. It would be nice to see it used with something like a Shimano nexus 7 speed hub to ease the run up to pushing such a large gear.

Great! I use a 70t front ring on my ebikes and they do 30 mph. recumbent ring from ebay. Where did you get that monster ring?

One chain RING that binds them all... Finally this guy cracked it

Amazing engineering minds..!! What a compilation of the flawless work.. hats off genious..!! This reminds me I have clean my cycle. Pending since last friday

5:37 Goosebumps 🥵

I can imagine you can use this to travel between 2 cities if you only used the highways. And if you had a separate chain and gear for regular city travel for the shorter distance you needed

God have mercy if you ever have to climb a hill with that setup! 🤣

Love it. I saw a bike in a museum many years ago that had a smaller sprocket on front and it achieved some sort of speed record, but they drafted behind a vehicle/structure. For your own humor, you might want to try drafting behind something just to see what you can do. Really nice construction and video shots. I'm subscribing now.

It doesn't matter how big your equipment is and what its gear ratio is. What matters is your power, wind resistance, your slope and the tire profile and air pressure. If you are very strong and ride downhill and into the wind, on racing tires with very high air pressure, you can reach over 100 km. In flat conditions you will not exceed 60-70 km.

when you go 0.1 degrees up hill on that its done lmao. but love the work you put into it

the NFT ad definitely dates this video

Good luck going uphill with this setup.

I love how outside the box he's always thinking

Amazing idea . The concept is here is ultra torque on front chain wheel.

It's an interesting idea, I used to think something like this might work before I tried pushing top gear on a standard road.

man! you got some muscles!! people must know how hard it is to pedal that thing and to reach such speed

Интересная идея, только подниматься в горку будет, мягко говоря, тяжело)

big fan of the build sequence 👍

Next up is to replace the crank hub with a planetary gear. Go even bigger on the possible overdrive ratio, and you don't have to screw up the frame geometry for ground clearance. And since the chain ring itself can be more normal sized, you'd still an easier time with chain tension and alignment to keep a standard rear gearset as well. (I think it's been done at least once already, but not something I've seen visited as the subject of a video.)

Какой Вы умница 👍Уважаю таких👍Взял и сделал 👍🤗

Where did you get the teeth for the front sprocket

And what force do you need to apply on pedal just to move it down?

1:31 epic Dr. Strange 🏵️🔅

0:25 stopped watching.

i built the same bike 6 years ago and have been using it for daily transportation ever since. my legs are huge now.

But where did you find a 3km downhill to get the thing up beyond 16kph in the first place I also have a feeling we skipped many many iterations of getting that huge chain wheel actually centered

As a manually pedaled bike this would be torture to ride but I could see and e-bike that has a gear like this being a thing, although that raises the question of where the line between e-bike and motorcycle falls.

Brilliant bit of fabricatioin! Bravo. How are the brakes -- I think you have a hub rear brake that's getting a lot less torque than its used to! Also, set your seat a little higher for more comfort. It was a pleasure to watch your fabricatioin & I enjoyed the photography. I liked the interior view of the pipe while its being cut and full of sparks. Your video also has a wonderful pace and suspense: It doesn't get bogged down with too much detail and the whole time something new is always happening. Thanks.

this is crazy in a good way. always wanted one

yeah tnx for the close angle of the melding, genious

Great editing and sound. The skills and the concept are fantastic. Thank you for sharing this with us.

That's the bike I will build for my own! Now I know this is a masterpiece.

The NFT part aged like milk.

Cool! Would love to see this in cvt form so you could start in a lower gear ratio and ramp up to that

My fastest speed was around 70kph going down a asphalt mountain road, almost flew off on a sharp turn too, brakes were not enough to slow down 😅

We did 40 kmh on our "fullys", 53 kmh downhill in the forest. Average speed in the city was always 22 kmh with all traffic-lights included.

Я ехал на веле 60 километров в час по каменистой грунтовке с горы. Было страшно, но очень весело))

I once clocked 90km/h downhill on my road bike on a highway. I still get a shiver thinking about that moment.

Just a bit under 40 MPH, not bad. I love watching the talented, off-the-wall people on YT.

You need to raise your saddle until your leg is almost fully extended at the bottom. Could get a good amount of more power still

To boldly go where no man has gone before!

I didn't realize there was a brake in the rear hub and I was impressed how he could skid that ratio.

до 80 км/ч разгонялся на обычном байке, просто нужна хорошая горочка с хорошим покрытием ))

You need to be extremely athletic to get that bike rolling. It ain't easy. I've tried the 9 inch diameter crank in my younger days and boy it was a pain.

I agree, fun project. I'm french professionnal TIG welder and when i see welds i'm crying. But " c'est pas mal ".

What a great build, great concept, great result.

The lack of aero wheels makes me sad, but still a cool bike! The fastest I have ever reached was 102 km/h going down a mountain. 64 on the flat is impressive!

i would be my uncle in a race😂 luv ur vids

What is the chain? I failed to find classical chain (with real inner bushing)

Very nicely put together video and very entertaining as well. Thanks for posting this.

That is what I called an upgrade, from level 1 to 100 already. Great job. 💯

I can't even ride a *normal* bike. I could for a year or so as a kid after some dedicated lessons, but then the back tire went flat and by the time I got it fixed I'd lost the muscle memory. And even when I *could* ride it, I couldn't balance long enough to get up to a speed where the bike would help if I was starting even the tiniest bit uphill, because I couldn't move my feet fast enough in coordination to achieve that speed unless I never went lower than 4th gear.

Владельцу такого велосипеда точно не стоит в качалке пропускать день ног) усилие для педалирования такого редуктора просто конское должно быть, в гору уж точно.

Отличный велик чтобы ехать по ровной прямой дороге с попутным ветром да ещё и на спуске 😅

Very good Brasil 🇧🇷🇧🇷🚴 Só faltou ativar a legenda português Brasil 🇧🇷😻.👍

I wonder if you extend the cranks. Will it go faster?

That's insane, but fun 😆 i love how you enjoy your hobby ❤

Удивительный вы человек с удивительными идеями! Творческих идей вам!

Через год: создаём летающий автомобиль своими руками в домашних условиях. Автору канала уважение за старание и создание интересных механизмов.

you found the secret to ebikes. Good job

Built a bike like this when in high school was definitely a work out to ride it! Drive cog was 98 teeth to smallest cog on a multi geared rear wheel,🤣🤣

did similar 20 years ago. used an exercise bike ring on a 20" bike. was insane.

Hey, really cool video as always! I was wondering what make your angle grinder is, I'm having trouble finding a good electric one but I like them a lot

That's what I waited for ❤️🚲⚡

Imagine a world cyclist on that thing😂 Edit: what if you add 3 gears?

This man can build a big chain ring, but not an adjustable saddle post.

Cool project, do you have a team that help you? Like for the filming, editing, idea searching and building?

Amazing execution. With an electric motor to help with starts, this bike would be unbeatable in the city.

Great build maybe put your seat up higher for optimum leg utilisation, and some disc brakes.

Love the brakesetup!!

The stress on the chain must be insane. Building up speed with this is also near impossible unless gravity helps (downslope). That said, looks incredibly fun