Tubeless Tire | The interesting Physics behind it
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- Опубліковано 1 чер 2022
- Tubeless tires have a wonderful physics behind them. Let's get into the engineering and physics of them in this video.
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That's what youtube must be and is for : knowledge, and proper remuneration for such creators.
👏👏👏
I haven't had a single flat tire for 4 years on my motorcycle with tubeless tires. To think that everyday items that we normally use actually have some genius people behind them is pretty amazing
same
I haven’t had a puncture on my Tubed tyres on Honda for 5years of high mileage tours
@@zeez9053 my bike had tubed tyre punctured once in 11 years.
But the other tyre is fine 😁
@@kepler214 and u use the bike once a year
Tire engineer here. Thanks for the great video. Just a clarification though, as the tubeless tires are made of different inner liner material (high air retention property), tube tire should not be directly replaced with tubeless tires, even if you have a proper rim contour.
Can't that be fixed by coating it with glue?
The inner of the tube tyre
People will go for the cheap option - doing it according to "code" is a luxury for people that can afford it.
Same for Bicycles. Rim needs explicitly "Tubeless ready"
How do they mean this, convert to tubeless tire? I thought that either the tire and rim require a tube, or the tire and rim are designed to be airtight and tubeless. Are they saying you can add a humped rim and toss the inner tube? Because that goes against what they said about permeable tires...
@@lu881 Applying glue can be a quick fix rather than a Engineering solution. Even doing so at a mechanic not advised as it would alter the tire performance in terms of wear, comfort and performance..
Physicist here, who worked on tire cord materials, and once attended a symposium on tire design, alongside a bunch of tire engineers. I was gobsmacked by the level of design technology in these advanced composites. I still have the book on tire design fundamentals, which runs over 300 pages.
Oh yeah tires have a shocking amount of engineering involved. I’ve seen a few videos on it and people have spent a lot of time trying to improve them over the last 100 years. You’d think it’s just a tire or something but has some of the biggest impact on performance when you get down to it. I live in the snowiest city in the US so they’re especially important here and add a lot of extra challenges.
@@ChichaGad bruh n o
@@ChichaGad bruh n o
Good. I don't want them to fail at 150mph.
I am just a regular guy and saw a video lighting up a tire for instant air tight. I know the science behind it but it bothers me whether the video just for a show or they really uses tubeless tire. Man I didn't know it is tubeless now a day. that is why curiousity arises why it should be tubeless and why air is not leaking. This video explain it all. So much complexity for a tire
A tyre seems such a simple thing, until seeing all the technology behind it! 🙂
Yah, there's also some pretty crazy engineering to make them quieter by spacing out the tread in a certain way. There's also the chemical engineering part of it too.
in a world built upon literally thousands of years of innovation and progress, truly simple technologies are a rarity.
@Wildlife Warrior USA is the only country that spells tyre with an "i" instead of a "y". Tire is being tired. No way is wrong, just different ways for different countries. Something most of us are taught in school. I learned English in Africa.
@Wildlife Warrior Yes, it's weird for me to see it spelled your way ;-) It's frustrating to see words spelled differently to the way I was taught to spell, yet they are correct for where they are used. Look up "Geordie in UK" for some weird English :-)
@Wildlife Warrior I didn't know Canada spelt it the same way as USA. I assumed they would use a "y" because they seem to use other British spellings, like colour, etc.
It is ridiculous how this channel makes me feel like an expert on the subjects it explains although i have very limited knowledge on them
Haha, the dunning kruger effect
Sometimes that can be the most dangerous 😄
fellow intellectual
This video had lots of twists and turns; with their trick questions, at times it left me feeling deflated, though I didn't tire of it!
It was a "breath of fresh air!"
Even they aren't treading any new ground by reinventing the wheel, it still feels revolutionary.
This mystery was in my mind from years, but now its resoved cuz of this animation...Thanks a lot❤❤
Same!
I feel old, I grew up with tube tires helping my father change in his spare tire, now you can only see tube tires in light trucks and trucks but newer trucks also slowly having tubeless as well
Out with the old and in with the new, if the new is better which it is this case.
Tubeless tires saved my life. Once run at 80km/h for 10mins before noticing i was running flat. Yep, driving that fast and long for 20mins.
It did made a sound for that time being and ignored it because i thought it was just loose cargo from the back. Had to stop because that sound was not normal.
I'm going to be labelled pedantic...
My understanding:
The radial forces are applied by the pressurised air (i.e. the forces act along the radius). The balloon surface is under tension (circumferential force, not radial). When the puncture occurs, the local tension is released, meaning the surrounding tension pulls the surface away, creating the rupture through which the air rushes. The balloon tears itself apart.
Similar to cutting a stretched rubber band.
no one cares and also yes you are pedantic..
wow i haven't seen tubed tires for cars my whole life. bicycle tires, on the other hand, is much more commonly seen with tubed tires although tubeless has been out for a while and extremely popular.
Not sure about other parts of the world, but in the US tubeless tires started replacing tubed tires in the early 50’s.
Note, tubes cannot even be installed in tubeless tires because, IIRC, wall strength and thus friction, leading to wear and ka-boom.
Some Soviet cars had tubed tires.
I've worked on cars for about 10 years now, NEVER seen a tubed tire. Fast, slow, cheap, expensive, old, new,... Always tubeless
Belgium btw (so European cars mostly)
For bicycles, tubed tire works the best.
This is very interesting as im a Technician at a tire shop and I have to work with tires all day. Love to be informed more about the things i work with everyday! Thank you!
The tires with the tube disappeared more than 25 years ago.
A car with balloon tires was a liability at speeds over 70 km/h, because the sudden change of direction above that speed was not controllable anymore. I recall after a long drive on the motorway - with my first car in 1981 - I felt grateful to Haven that it went smoothly. I had a couple of tire deflation at low speed, it is unbelievable how quick the tire went from being fully inflated to being totally flat in less than 20 seconds. And this was caused by a stray screw or small piece of metal - casually present on the road - that punctured the tire. Even a pothole once blew the balloon tire.
I'm grateful to the industry that came up with tubeless tires. In the beginning many drivers complained about the costs and the non-repairable nature of the new tires, but whoever had a balloon tire incident knew better and quickly swapped for the new tires.
Thanks for the video...
Tube for car disappear long ago, but you can find lot of vehicle using tubes nowaday : bicycles, lawnmower, tractor and trucks
@@Dread262 and some classical cars aswell
I learnd more engineering from UA-cam animation videos than my four year course
Amazing videos with simple explanation, hope these get played in school during science periods for students. Keep up the good work.
😂😂😂 100₹ lol
I've been a tire technician for decades. Very fascinating...
Beautifully explained. Can’t get easier than this . Thanks a ton .
I was learning more interesting topics from your UA-cam channel
Thanks for your great work
I'll never get tired from watching your videos. Thanks for making this!
I was curious about how the tubless tyres locks air tight.
And i still wonder how is that hump is capable of locking air so perfect in millions of tyres.
Wonderful
This video gives us the most easiest and simplest way to understand about the difference & working of both, a tubed tyre as well as the tubeless tyre.
Thank you Lesics team for the wonderful animation and explanation which helped us to grasp this concept.
Thanks for the video, it's given me a much clearer insight to tubeless methods on a push bike.
Loved the explanation of this video. I learnt everything explained. Thanks. My old tubeless tyre developed a crack two days back and I replaced it today and am amazed at how the principle of tubeless Tyre works.. 👏👏👏👏
I really like this channel, it clears my maximum doubts
Honestly, I never thought it so well. I got my puncture repaired while I was awe struck for like 10 minutes, and then I got busy into my life. Until now, I didn't know how amazing this is!!!
My best Science teacher Mr.Sabin❤️
This channel deserves a billion subs...u can visually understand everything i love it!!
A fatal crash. Well that escalated quickly.
Very nice explanation. Thank you for making this such a nice video!
Thanks for this tutorial.
A simple difference, we didn't know.
7:08 that's super dangerous. I'm lucky to be alive after doing it and having the tire blow up.
I believe the expansion of the balloon (4:10) is what creates the tension forces at the surface. When you puncture it with the needle, it basically disrupt the equilibrium of forces on the material and now all the stress need to be supported on the surrounded material, which is now weak due to the needle stripping it. Thst explodes the balloon. You can demostraste it by expande the balloon without filling it with sir. After puncturing it, it strips away. With no air flow around the needle.
But he's talking about tyres so the air filled demonstration is appropriate.
@@gn6691 - but still wrong.
@@FerdiLouw what's wrong?
@@gn6691 It is not the airflow around the needle that causes the balloon to burst.
Exactly what I was thinking. Airflow does not make the ballon pop out, its just the tension applied on all surface points of the ballon material due to expansion from the air inside it. The popping is because the surface points of the ballons are now un unequal tension state.
I like how you start with a simple experiment and make us think. Then slowly everything unfolds -- idea, trials, more problems, better solution, and finally, a near perfect solution. A unique way of making students appreciate good engineering.
Thanks for an extraordinary and useful video at this hour of need. It will certainly inspire the interested car users.
These animations are on another level 👌
Today I bought 2 tubeless tyres for my bike. at evening I got recommendation for this video.
I can't remember the time I've seen a car tire with a tube in it
Key points discussed with excellent demonstration
Thx brother , excellent animation and explaination 👏🏻👏🏻👏🏻
Unfortunately this is not good nor correct explanation.
Majority of tyres don't have "hump" on rim. Air pressure keeps tyre pressed against rim and they form airtight seal. Hump may only help when tyre is deflated to keep the bead from mowing inwards and tyre collapsing.
Also balloon analogy apply to all car tyres since they all have reinforcements inside, and won't explode. Difference in tyre types is that tubed tyres are not airtight around bead and will deflate faster when tube is punctured, while in tubeless the air can only escape through puncture hole.
Very insightful and great visual explanation 🤓
Clear explanation and a perfect animation.
Thanks to those master minds behind this Tyre technology which helps us in a smooth ride on road.
Thanks a lot for the knowledge
This video makes me to learn a lot
by the most simplest way
Thank you for clearing the concept!
This video define the engineering. And genius people's behind every smart object.
I have been using a car with tubeless tyres for eleven years. I thought that perfect sealing between the rim and the tyre was achieved by precision machining of the alloy rim. That rubber under pressure would fill the tiny gaps if any. I am glad that at last I got the opportunity to learn about this engineering achievement. Many thanks for the instructive video.
Excellent explanation.Thank you for making such, easy to understand and simple videos.
This is not good nor correct explanation.
Majority of tyres don't have "hump" on rim. Air pressure keeps tyre pressed against rim and they form airtight seal. Hump may only help when tyre is deflated to keep the bead from mowing inwards and tyre collapsing.
Also balloon analogy apply to all car tyres since they all have reinforcements inside, and won't explode. Difference in tyre types is that tubed tyres are not airtight around bead and will deflate faster when tube is punctured, while in tubeless the air can only escape through puncture hole.
it was just poped up in my mind while riding to home, now i can have a good night sleep, thank you.
Also thank you for the enlightenment. Tubeless tyre is the real deal. Easier to maintain (patch). Picking a nail with tube tyres deflat easily but with tubeless it can even get you to your destination.
If I had found your channel during my high school, i would have loved to go for engeneering. You're so good
The Best UA-cam Channel I'd ever visited.... subscribed instantly.....♥️
Thanks for making us understand these stuffs ....🙏
Woww amazing tutorial 😍 👌
2:24 so what you are telling me here is that the outer body of the tire, which keeps the tube in shape is strong enough to do that, but not strong enough when the damn air leaves out of th tube due to a puncture.
"This is a nail. Nails are sharp because someone sharpend them and that makes them pointy. If you press a pointy nail into something soft, so long as the nail is harder than the material it's pressed into and the force exerted is great enough to drive the surface of the point forward, the nail will move in the direction of the force applied. This will likely cause a puncture in the softer material, as the nail will have to puncture it to be able to move forward. This is why nails can be dangerous when driven over. Driving is usually done on roads, which are not made of nail, but can contain occasional sharp objects due to other drivers carelessness. Nails are friction based fasteners often used for bonding wood in construction and other applications. They are usually steel, but can be made of other materials like aluminum. These materials are almost always harder than the rubber compounds used to produce automotive tires, and most nails are intentionally sharpened to make it easier for them to penitrate a variety of different material, usually far more durable than a rubber tire. When a force is applied to a nail, usually the upward force applied by an asphalt roadway, equal and opposite of that exerted upon it by the weight of a passing vehicle, the nail can be forced to permiate an automotive tire and cause a puncture."
Dude, who is this video for? Imagine you're considering swapping your fully restored classic car over to tubeless tires for safety but you don't understand the concept that a balloon will pop if you stick a pin in it.
You owe me at least 4 minutes of my life back. Plus the time it took me to write this comment.
If he actually said what you wrote, you would have a point. But he didn't, so you don't.
@@jdb47games you are right. What's simple to me might not be so simple to someone else. I know cars, but I have been learning how to count in Spanish feeling stupid.
I'm glad someone benefited from the explanation.
Thank you from Europe for the educational videos.
Great visualization and easy to understand the concept
If braking a wheel at maximum force, the tire can in some cases rotate/glide on the rim. This will immediatly destroy the valve if fixed on both the tube and the rim and cause a sudden loss of air pressure. This happens usually in the worst situation (full braking needed). Tubeless tires can rotate/glide without destroying the valve or the tube.
My bicycle has tubed tires. I had lots of flat tires with nails an glasspieces in it. But I had never an exploding tire.
Thanks man!
2:20 Why does the tire explode? If it was able to hold the air pressure before the puncture, I’m not seeing how a puncture would suddenly make it able to explode.
As shown in balloon case, the air will try to escape from the puncture region, and since the pressure is high, it will likely rupture the tube and tyres.
The tyre (and tube) has tension when there is air pressure.
When there is hole in the tyre, the tension (tyre stretching because of the air pressure) causes the hole gets bigger.
While the hole gets bigger, the punctured site becomes weaker to tension. This makes the tyre more vulnerable to tension, making the hole even bigger. Eventually, tension will rip apart the punctured site, causing an explosion.
Edit:the same thing happens to the tube, but the tube won't pop. Only the hole gets bigger
In fast tyre deflation, the air can escape through the valve also. Hence the air pressure decreases rapidly, so as to reduce the tension on the tyres.
I.e. not cause the tyre to rip apart.
@@Abedchess But the pressure -> stretching effect occurs with the tubeless tire too, so I’m not seeing how it’s unique to one design or the other.
The balloon pops because the rubber is stretchy and the escaping air has that servo effect. A tire is not very stretchy, regardless of whether it is tubeless or not.
@@MaplePanda04
In tubeless, the tyre and tube are glued together.
This provides support against tension, making it harder for the hole in the 'glued tube' to get bigger.
Like a balloon with tape. The tape is helping to resist the tension, making it harder for the hole to get bigger.
@@MaplePanda04 In a balloon, the tension pulls in all directions around the balloon.
In tubed tyres, the air pressure transfers from the tube to the tyres. The tyres cannot withstand the air pressure , and rips the tyre at the weakest point.
I.e. the puncture point
In tubeless tyres, the tube and tyre are glued together. Both provide support against the air pressure. Making it harder for the hole in the glued tube to increase.
The tyre will not burst because the 'glued tube' is transferring air pressure directly outside
Love the animations here. Great video and well explained.
Always great and knowledgeable content. ThankYou Shabin sir❤
I wonder how UA-cam got to know that I've had doubts about how tubeless tire is made possible!
For aircraft landing gears the rims are divided into two -outer and inner rims .joined by tight bolts.
its called a bead lock. most off road trucks or rally cars have it. especially rock crawllers or extreme heavy equipment
@@jamesporter. They are not beadlocks, rather they are two halves.
I was so confused about this....u just made it so easy thanks
Awesome. Very well illustration
This video is lot better & understandable than school teachers
We would love to see if you can make a working of different kinds of compound bow tiggers....
Salute to the engineers...they are literally one of the most underrated professionals ( in INDIA atleast )
Really informative and wonderful video from Sabine and team. Great work guys. Really love you.
Excellent video , you made us understand the mechanism well better than our classroom 💫
Thank you lesics team. I have been watching your video since when you were "Learn Engineering". Your content is unique and helpful for everyone. Thank you again Sabin sir
@@bluejar5614 Please do the favour from your side! I will follow you after that
@@anuchowlu2146 appreciable 😉
@@bluejar5614 eastern and western economy are different
@@generaliroh842 yeah
@@bluejar5614 u donate then
Keep these interesting and informative videos coming.
WutFace
@@user-wi9mo4hp6h pog
Wow thanks for the face reveal. Will be supporting monetarily
Keep making these forever please.
If you hope i enjoyed the video, yes of course i did, thanks for sharing
kind of interesting that this is being presented as a cutting edge tire tech but literally every car tire ive ever seen in my life was tubeless
Well That depends on how old are you?
@@ankityeshpattnaik936 i mean i think regardless of my age unless im like 3 years old it kinda suggests that its not exactly cutting edge stuff
@@estergrant6713 no he means, how old are you as in what time era were you raised or something. Tubless have become pretty much a standard over the last 20 years because so many people and statistics agree that the tubless models are safer and more efficient
@@A_very_tinly_can thats my point is that my age is irrelevant because my point is that its presented as new technology but as you said it has been standard for the last 20 years.
@@estergrant6713 oooh now i get what you mean
Thank you for very simple easy to understand explanation
ITs amazing method to explained how the things work and 3d animation awesome. Simple to understand by visual and how technology grow day by day. Thank you very much!
I had no idea that some tires had green ghosts inside them that help to seal punctures.
You should have mentioned how driving on a flat tire (tubeless obviously), for any distance, completely ruins the lining inside the tire, technically making the tire unsafe. If you've ever repaired a flat, you know instantly they have driven on the tire because the moment you break the bead and see inside the tire, its filled with a black powder.
wow. this is some incredible explanation and illustration.
I love your videos
Excellent description of the concept... nice graphical inserts
Wonderful, really searching for that explanation!
Hey @Lesics
Can you please make a video about the engineering behind ATMs. I would really appreciate to learn about it.
That nail used to puncture the tube was giving a wild smirk
Excellent video, I clearly understood the technology behind it, Many many thanks
A tube type tire can hold much greater pressure than the tube anyway, but the pressure doesn't increase inside the tire just because their air is outside of the tube. The tire is still holding the same pressure throughout the entire volume of the vessel
That's was i thought
Sorry but tires with tubes do not pop like a balloon when punctured. I drove cars with tube type tires 60 some years ago and when a puncture occurred I removed the tube patched it put it back in the tire and drove on. Sometimes I would air up the tire and repair it a day or two later. Good information other wise thanks for the video
This is literally my favorite channel 😍
Also to mention that a tubeless tyre is light on the shockers compared to the tyres with tubes.
Also I felt that tubeless tyres are lighter than tyre and tube assembly.
More importantly, they run cooler due to the lack of friction between the tire and the tube, which leads to less wear per mile and longer lifespans for the tire.
It also allows them to run at much higher speeds for longer periods without failure.
Very informative content! 👍❤️
One inconsistency though. First it's said the tubed tire is permeable hence can't hold air by itself. In the end, it's said that you can convert from tubed to tubeless just by changing the rim. What about the permeability of the tire material discussed earlier?
It'll leak over time. so it "works" just not ideal vs an actual tubeless tire with reduced permeability.
what he meant was you could replace( not convert) tubed tire with tubeless.
complicated topic understood in a simple way.
keep uploading more videos.
I learnt something new Today.
Still some old budget cars use Tubed Tire, never seen car becoming uncontrollable when Tubed tire gets punctured. In my experience we had Alto with tubed tires and we came to know that all the tires got punctured at same times but did not feel car becoming uncontrollable, probably because it was at low speed.
Airless tires would be even better but there is something quite nice about tubeless tires.
@Himanshu Ramani You are right, we Alto wallahs rock 😊.
All tubeless tyres after 15000 kms or so develop micro holes and one needs to add tubes to those.
@@aosorea May be not on your Mars 😆 😂, here in Delhi, I know even Toyota Fortuner owners have got tubes placed in their tubeless tyres.
One or two punctures are enough to make the tubeless tyre useless.
@@aosorea I am not sure about others but we do have Michelin in India, and other standard Indian brands, Dunlop had closed down, never heard of Pirelli, so many be the quality of Indian tyres is not upto the mark, it could also be bad Indian roads.
Doesn't the steel belt (didn't get mentioned) built into the tire serves the same purpose as the tape to the balloon?
The steel belt is attached to the tire though (the outer layer), isn't it? To give reinforcement to the tube, it would need to be attached to the tube. It's there to reinforce the tire, not the tube. The tube is free to tear open "below" the steel belt (and the air can easily escape, of course).
@@LuaanTi I understand the basics. My point (thought it was obvious) was that modem tires don't come with tubes. Even way back to the 80s they don't have tubes with tires for passenger cars. Hence the steel belt that I mentioned. One of the reasons why the tire would get shredded to pieces is because it either a suffered a blowout of the sidewall or ran over a large nail or objects that caused a large enough puncture to quickly deflates the tire. The blowout would cause an instant deflation, and a large enough puncture would cause a fast leak, but gives the driver enough time to pull over. In either case the tire would be shredded and can't be saved by the time car comes to a full stop.
In a small nail puncture all the way through the tire, you usually have days of driving before seeing signs of leakage.
@@nightsurfer1 Not really. On paper it does, but practically a tubeless canvas ply tire will have the same reaction to a foreign object punture wound.
@@bremCZ I was waiting for others to chime in and reply to you, but I guess I will. Lol
But before I jumped to conclusions, could you clarify on what you were saying or is it that you misunderstood my point that I was making?
@@nightsurfer1 The original question. The steel belt doesn't, in practice, perform the same function as the tape on your average passenger tyre. A non steel belted tyre is in no more practical danger of blowing out from a foreign object puncture than a steel belted tyre. So while in theory it certainly does act in a similar manor, the amount of pressure inside the tyre is nowhere near enough for a typical puncture to cause a blow out in the tread face.
All my doubts cleared thank you so much ❤️
Great video, love the animations
My car rim does not have the hump. Internal pressure keeps the edge fixed with the rim. It was worth the investment.
Thank you for pointing this. I never seen a tyre rim with hump. All are held by air pressure.
@@TDDoooOOOooo Other way around. Almost all rims have a hump. The only ones that don't are tube type rims. I've changed thousands upon thousands of them.
2:18 Anyone know why the punctured tube would cause the tire to fail catastrophically? The air escaping the tube is at no higher pressure than when in the tube.
the energy of air converts from pressure energy to kinitic energy ( speed )
if air can not go out of the tire quickly which is the case here , the pressure will increase outside the tube but insidethe tire which lead to explosion
@@hakeemnaa thanks, i didn't quite get it either
@@zebragoboom it is not zero pressure because the air can not move freely
the tire (outside cover) restricts the air movement which lead to increase of the pressure
The pressure inside the balloon is the potential pressure it has but it’s being contained . As soon as there is a spot for the air to go it’s energy is dispersed .
basically when tube intact, pressure is equal at every point on tire and tire not have any weakpoint, but whet it is punctured, pressure focusing punctured and weakened zone for escape then tears tire.
Thanks a lot for your clear explanation.....
Very good quality of your job!
Than"s a lot!
Me and my family always glad to see new videos on your chanel.
Wow i don’t know that the shape of rim is designed to make tyre fit more easily..😅👍🏼