New Tires vs Worn Tires - What Performs Best?
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- Опубликовано: 6 авг 2024
- The Truth About Worn Tires - What Happens As A Tire Wears?
Tire Demonstration Videos - bit.ly/2LdI157
Big Thanks To Michelin For Partnering On The Video!
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Do tires get better or worse with wear? What's the difference between a new tire and a worn tire? As a tire wears, you may be surprised to learn that its dry performance actually improves. Braking distances tend to get shorter, and cornering grip tends to increase.
The opposite, however, happens in the wet. As the tire nears the wear bars, braking distances increase and cornering grip decreases? Well, why is this? And what can you do to prevent wear from ruining a tire’s performance?
First off, we need to break down how a tire gets its grip, which can be grouped into three categories: construction, compound, and tread pattern. A tire’s overall grip is a combination of all three. The construction of the tire provides the overall shape of the contact patch, and how it interacts over bumps and imperfections.
The compound obviously plays the most critical role; how well the compound sticks to the road determines how well the tire performs. And what’s cool about compound is that it doesn’t change as the tire wears, so you want compound grip to be as high as possible for both wet and dry grip.
And finally, we get to the tread. Tread patterns are great for wet grip, they improve traction in the wet by evacuating water away from the road contact to help prevent the tire from hydroplaning. So it’s logical then, that as the tread wears away, wet performance wears away with it.
In the dry, however, that tread pattern reduces the amount of rubber contacting the road, and decreases the rigidity of the tire, allowing it to flex and squirm. As the tire starts to wear away, the tread pattern wears away with it, and the response and grip of the tire improve. This is why in racing, when it’s dry, you’ll see tires without any tread pattern at all, just a smooth, sticky, flat surface for the tire to clench the road.
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There's one thing you forgot! Age!!! Depending on how much you drive, it is not only wear that affects the tyre but also age. Rubber compound is only guaranteed for a certain period. So although you get more surface contact are as the tyre wear down, with time the compound losses its characteristics becoming stiff, dry & brittle
Mihai Constantinescu THANK YOU, just mention this in my question.
Great comment, came here to say the same!
tire.
Tyre, actually. I tire of your antics.
And on top of age let's not forget heating/cooling cycles.
not enTIREly intuitive huh?
Sold you sole. Like the catholic church. Next train for the coast. Appeal to emotion
Get a GRIP. You are only COMPOUNDing the problem! :)
You mean "soul", not "sole".
enTyrely*
It is 100% intuitive
A good example of sponsored content done right. Thank you.
Very welcome, thanks for watching!
I personally would love an enTIRE series dedicated to tires. Tire engineering explained. In depth, everything. Make me a tire nerd in depth.
Thanks.
Haha, I’m all for it!
Engineering Explained give an explanation video on the Continental Sure Contact series of tires
They kick some serious butt!
I really enjoyed this one! My work revolves pretty much entirely around tires. The insight you brought really helped me understand the inner works of a tire!
Good they removed the badges, not even God will know that's a Camry
Don't know what I was driving, but I do know it was fast! Guessing something exotic. 😂
Engineering Explained Did the big reveal happen when you found out you were in a Chevy all along?
Jabid21 definitely was a Bugatti... look at those crazy curves and that aerodynamic design
That was the 2018 Camry. Looked into it myself this year, but read all the negative reviews of how much molded plastic Toyota used this time around, making the interior look and feel so blah. An untrained eye will like all the curves in the console though.
Daniel Royer that blah was voted among the best interiors of the year
Very interesting. On a Porsche that I had years ago I had a set of Yokahama A008Ps that I carefully rotated frequently to equalize treadwear. I timed the point when the tread wore down to zero to the beginning of our dry season in San Diego and so I was able to drive the car for quite a while on slick tires. The handling was fantastic, above the already great handling of the tire and I had no problem. On the rare occasion when I did encounter water on the road I would just slow down and drive more carefully and so I never had an issue. However, when my wife found out that I was driving on slicks she made me go out and buy new tires😟
The only automotive channel explain things perfectly.
True that on the average economy tyre it will grain performance with wear, but UHP road tyres with much softer compounds are susceptible to heat cycles. So if you push them get them hot you will change the compound over time and make it harder, losing dry performance with wear.
When EE makes sponsored contents that are also super educational, I wish I could like the video more than once!
rainystorm88 it doesn't make me want to buy muchilin tyres I already knew they are the best and very expensive and unnecessary for the average driver.
really though.. kill all the advertising and sell the best tire for a moderate price
How does abs work?
rainystorm88 y c
I shall scroll to the top after this comment and like in your honour, rainystorm88.
Really interesting video Jason!
Thanks Matt!
Blimey, probably the best video about tyre profiles I have ever seen. Before this was simply a black box to me. THANK YOU VERY MUCH!!
Jason you’re the man!
Excellent information! And very well done. Great work Jason.
I really like tire videos. I also really like when you use sponsored content to make high quality educational content with connections.
Great video, really hope to see a video in that testing facility. Also want a video in the factory if you ever get the chance- I would love to see the molding process and tooling
Glad you enjoyed it! Something often overlooked (that you pointed out quite accurately) is that sponsored content generally provides access to engineers and product managers that I typically wouldn't have the ability to speak with, especially not for long durations on a single project. It's great to be able to pick their brains for information, and ultimately we all learn from it (this is always my goal for sponsored content). With regards to the onsite testing, here's a link to a few videos: bit.ly/2LdI157. Under the section where it says "we partnered with Jason Fenske" there are three clickable video thumbnails. And I agree, it'd be very cool to see the molding process!
Engineering Explained there are videos showing the tire making process, although the ones I've seen kind of "leave you hanging," especially if you're an engineer or technical type.
IIRC an episode of "How it's Made" deals with tire manufacturing. Unfortunately, again IIRC, it deals with retreads. It was plenty informative for that particular subject, and I'm sure many of your more inquisitive viewers would enjoy it. However, I think more would enjoy the process of producing a "virgin" car tire & the different options such as steel or corded, especially if done in your style of video, and even moreso if you had some company sponsorship.
In the meantime, I suggest that anyone looking for the tire molding process to seek out the retreading video as the final molding is going to be nearly identical to that of a brand new tire.
The tire companies get pretty frigid when you ask to see the the magic behind the curtain :). It'd be rare to get to do footage on a modern tire company production floor. Great video.
Matthew Zaleski Yeah, I just remember How It's Made videos. This is the kinda channel that would be perfect for making a video on a non-proprietary process, like molding. I don't think they'll want to talk more than generalities about compound.
Engineering Explained thanks for the linked videos! I'll watch them.
As a Certified Tire Pro for National Tire and Battery and TBC Corp, I gotta say...
Damn good job and on point with everything about the Michelin Premier :)
I'll be using that explanation about partial depth siping with cheaper tires to explain to customers why dealership tires are the way they are as well as the explanation about the thinner steel for skinnier siping making the process more expensive, but overall justified due to the better performance :)
Great info! The narrow down to wide sipe is such a brilliant idea.
This is how a video about Tires should always be done. It doesn't mean necessarily to be kind of similar copies, but the explanation should be correct. I saw different videos where there was this tendency to actually make all people think that is not an issue at all on the wet surface as the Tire Wears. Thanks for giving us this explanation.
I learned a lot from this
Keep up the good work
I had Premier A/S tires on an old car of mine, they seemed really nice and I liked the idea of the tread expanding as the tire wears down. Sadly they don't make them in 235/40R19, so I guess I'm gonna go with the Primacy MXM4s when my current Continentals wear out.
I use those Michelin premier a/s on my forester. Excellent wet and snow traction. Love them for northeast winters.
I work in a tire shop so I already know these Michelin Premier are pretty much top of the line, but it's nice to learn something new. No matter what brand I get, I make sure it has a long mileage warranty. I also look to see if the sipes go down to the bottom so even when they are worn out, performance isn't degraded as much. Michelin and a few Goodyear ones do this as well but I haven't seen Pirelli do it.
You’re are genuinely the only Content creator that makes great stuff even when sponsored. Really enjoy this video
Great explanation, you left out a discussion of changes to cross linking and structure as tires age/heat cycle, and a number of other fun things like shaved tires, but you hit the main points spot on. Great video
I need new tires on my Civic, so this video is right on time. Thanks, Jason!!
Great info! Definitely will think about this a little more based on the seasons.
Very informative video and well made. Thanks for sharing!
Very cool stuff about the silica in the tires, with the binding agent! In pavement engineering, we need to have binding agents and emulsifiers for the gravel and sand aggregate to mix in with the bitumen. There is definitely a lot of chemistry happening there and different mix designs do very different things. Very cool to understand this is happening in tires...makes a lot of sense, as these items genuinely hit the roads, and being complementary to the roads is smart!
I had those Michelin Premiere A/S on my Accord before it was traded in and those tires are the best all season's I have used to date! It got me through 6-8 inches of snow with no issues and also with no compromise on safety!
Lets pray the Michelin sidewalls would not cracks with a million smiles in 3 years just like my.
Unless you used up all the treads before that.
@@loktom4068 That tire had like a 75K or 100K tread life warranty and did you not take advantage of it?
First of all - great video as always! Advances in tire technology have been fantastic.
There are a few considerations here that perhaps warrant mentioning.
1) Depending on where you live, the percentage of your overall driving time that is done in rainy weather is relatively small. Some regions have a lot of wet weather, some less. But regardless, the percentage of hours in the year in which precipitation is falling is fairly small. Statistically, more than 2/3rds of the total precipitation in the US happens in just 30 to 55 calendar days per year. And on those days, it rains far less than the entire 24 hours. Overall, the percentage of time it's raining in the US is between 2 and 8%, depending on where you live and how you measure it. So there's statistically a 95% chance it will be dry when you are driving.
2) Michelin should really differentiate between "wet roads" and "standing water". What Michelin REALLY means in their testing is standing water of some specified depth. For roads that are merely "wet", the compound matters FAR more than the tread pattern or depth. Even more than the tire compound, the actual road surface itself is an even larger factor! Grooved concrete with a broom finish surface, like is used widely here in Texas, provides vastly superior grip over smooth rolled asphalt. This is true whether wet or dry. Further - grooved concrete is permanent. It does not change over time largely. So the effect of worn tires is mitigated by the surface treatment of the road surface.
3) The statistic of one being 4 times more likely to have an accident is also somewhat misleading. There are two aspects to this. First - "being involved" in an accident is different than you being the cause of one. If someone else has terrible tires or drives too fast and slams into you, the tires on YOUR car will have little effect on that. Next - you aren't entirely helpless here. In the USA, few if any drivers receive any real wet weather driving instruction. Drivers get education about driving in the wet, but little to no practice. But the point here is that the WAY you choose to drive when it's raining has the majority of the impact on whether or not you have an accident. One could simply slow down a little, drive more cautiously, take turns slower, and make other adjustments that would have a much greater impact than your tires.
4) On my own car, I run Michelin's Sport Cup 2 track racing tires - and I use them for daily driving. The rationale is that they have much higher dry traction due to a very sticky rubber compound. Since 95% of the time I am driving on dry roads, I benefit vastly from better grip, shorter stopping distances, and better turning control that a wet weather tire. Further - these tires are actually designed for wet tracks - so on wet (but not standing water), they actually outperform many tires designed for hydroplaning resistance. The tread compound on the inner third of the tire is highly optimized for wet traction, the outer for dry and wear resistance. Their only shortcoming is that they do not perform well in standing water. So when that happens and I have to drive, I simply reduce my speed a good bit. Most modern roads have excellent drainage - and as I noted before, many have grooves in them to help shed water.
In the end, I actually feel like a tire optimized for world-class dry and wet, but not standing water performance, combined with some driving modifications for standing water, is actually safer than going for a "one tire to rule them all" approach - mostly because of the trade-offs that invariably must happen.
And we haven't talked about snow yet!
Good job, EE. Informative while making sense - especially the sipe presentation.
This is one of my most favorite channels on RUclips. The Michelin Pilot Super Sport tires on my 2018 Corvette Grand Sport grip like glue but at 10-15k miles they will be worn out due to soft sticky rubber. It's the sacrifice I can live with due to the turning performance that is amazing!!
Go with the Pilot Sport 4s, it is the number 1 summer performance tire on the market right now. I run them on my car and the performance is outstanding.
Thumbs Gaming they would be next for me but my Tesla's 21 inch rims means they don't even make pilot sport 4s's in that size yet. Only the older pilot super sports. Looked up reviews and people say apart from longevity, performance is not any better
Assuming you drive the car spiritedly, 15k miles on a tire/car like that is very impressive life. Cup 2's are pretty much as close as you'll get to an R-compound tire, along with bridgestone RE-71r's. If I remember correctly, the cup 2's are actually 180TW, which isn't even allowed in most street tire class races, where treadwear ratings are capped at 200.
Try Nitto NT05.
My slingshot back is gone in about 6k bfgoodrich pro comp not getibg afain
Great video. Have you considered doing a comparison video between premium brands vs. budget brands but instead of using the same size of tires, use a budget brand tires that is 10-15mm wider but still maintains roughly the same circumference. For example, Bridgestone/Michelin/Goodyear 195/65 R15 vs. any budget brand 205/60 R15 or even 215/55R R15, etc. if these tire sizes exist. My theory is that would the wider width of the budget brand tires compensate for traction/grip and match the performance of the premium tires and at the same time cost far less? I will be watching. Cheers
Another great video. Keep up the good work :)
I just bought Premier A/S last November and ran them through most of the Canadian winter. They had very good start/stopping traction in the snow (for all seasons) but understeered quite a bit when turning. Tread design probably affected this the most as they are designed for water not snow. No issues with wet traction or wear so far.
Overall they are decently quiet and I am happy with them.
Wow amazing!!! It’s incredible how many technology are behind on Michelin tires!! Great video! Thanks
Awesome video, I'd love to see more videos explaining tires!
Wow what timing with this video because I was actually tire shopping at the moment. Now with all this new information I shall reconsider my previous choice in tire
Wow! Very informative! Thank you!
If you wear a tire within say 1/2 years the compound won't change; anyways after 3 to 4 years the compound will start to degrade, getting worse with time. After 5 to 6 years the compound will have become harder and will provide less grip.
TCS tested this and they found that a 6 year old tire is dangerous. This test was done with full thread depth and with different tire ages.
Great vid. In my dry weather driving (rear wheel drive grip) experience with tires, when the tire wears and the tread depth is reduced and more actual rubber is touching the ground grip is reduced when compared to a newer tire with deeper tread, I’ve always thought that maybe the compound is harder the more the tire wears but according to your video there should be more grip the “balder” the tire is. I’ve also thought that maybe the actual flex of the deeper tread allows the rubber to get a better hold on the rough asphalt surface, allows it to kind of dig in because there is more material to conform. I’d like to see a side by side grip comparison with a low tread performance tire and a brand new tire of the same make/model, I still feel like the new tire would provide more grip...
Last week I changed my front tyres. Both old and new were Continental contactsport 5. The outer half of the old ones were slicks, the inner half had just a bit of profile left. After about 1h on the new ones they currently don't have the dry road performance the old ones had. Braking is less and in corners I have to correct more.
Once again, your a man with much knowledge
I had those Michelin Premiere A/S tires on my Accord and didn't need winter tires at all. It had gone through 10+ inches of snow without issues and fuel consumption was awesome and just as good as my Michelin Pilot Sport A/S 3's. It's an awesome all season tire and if you don't get much snow then this is the best you're going to get for an all season tire!
I love hearing that the tires I replaced the original ones with are better and I love hearing that, in some ways, my tires get better with age instead of just diminishing in value. Thank you skinny Subaru man.
Go Bridgestone Tires! I bought some BF Goodrich tires about a year ago because they were known for good wet grip and living in South FL its always raining ( its raining right now ). I have to say these are very good wet grip tires, they give me a great boost of confidence when driving in the rain. the tires are BF Goodrich G Force Comp II . My favorite grip tires so far are Bridgestone Potenzas.
'Teamed up with' Michelin, eh? I just ordered a set of Pilot Sport 4Ss for my STI, I can't wait to try them out!
My brother works for Michelin in Lexington, South Carolina and has done the very same test you did! Tires are extremely important and way more complex than most people realize.
fun, i have the Michelin Premier A/S tires on my car. it's good to know as they are about half worn they are still good for the summer. good tires. thank you for this video.
Great video. Could you go over the differences and benefits of mud terrain/ all terrain/ highway tires? Not sure if you've already made a video so
Very informative video.
Thanks a lot.
I didn't tire of watching this video from beginning to end. 👍
Thanks for confirming that worn tire actually has better grip in dry condition, while losing grip in wet condition.
as always: Great video! But we need to consider: a new tire has more rubber to work with. That means a new tire gets warmed up faster, while a really worn tire can get problems to reach his working temperature at all (which was one reason when I crashed my Caterham . 4°C tarmac and worn semi slicks are no good combination :-) )
More rubber on a new tire means also a softer limit range. Maybe it won´t be as high as with a worn tire in the dry, but for most people with average driving skills a wider range would be better to be warned, that the car will reach it´s limits soon.
Regards
I love your channel, and you have so much information to share, is it possible for you to cover some diesel topics more please? much appreciated
Good explanation!
Just a tip: u could make a video on how pressure influences grip on wet and dry performance.
good vedio EE. please explain how tire and wheel sizes and profile of tire effect performance and efficiency.
Wow I thought you would 100% say worn tires are worse, being as you're sponsored by a tire company i thought you would tell everyone to get new tires. Good to see you don't sell out out and just say whatever your sponsors would be most happy with. Keeping it 100 with your viewers big respect
Well that was very informative and impressive. Impressive because we all know that hype creeps into such videos, but Jason, you managed to avoid that very well indeed and just deliver useful info. Thank you.
Can you do the same for off road tyres too?
A debate seems to crop up now and then in 4WD forums where one group believes wide tyres are best for offroad, while the other believe narrower tyres are the best. Now the debate is over grip in sand, mud and gravel and when the air pressure is reduced purposely to increase the area of the footprint and to absorb impacts more readily, and ofcourse, the flip side is fuel economy, wear and bitumen performance when the pressures are back to normal levels.
It's a much more complicated scenario than for normal cars and understanding the basics will help many offroaders choose a tyre that is fit for purpose.
Nice info! Question on a branded old tire stock manufactured date 2016 week 47, given on a good storage environment would you be able to enligthen me about the quality, warranty or still safe to use for how many years? Any thoughts pls..
Can you make a benchmark with light rims vs normal aluminum vs non-aluminum rims to save fuel? is it worth to buy special light rims to save fuel?
Also how much a tire must weight to improve performance?
Sorry if I overlooked this in the video, but what about dry-rotted tires? Does that effectively change the compound?
My experience has always been that new tyres have better dry weather (and definitely wet weather) grip than worn. Is it possible that the compound deteriorates over time due to kinetic and thermal stresses to be less effective?
idk man, i was in between michelins and pirellis when i brought my tyres. after watching reviews online i decided to get the pirellis and i couldn't be happier. they wear good, the grip is still there and they are really quiet. i got about 30k miles out of them and they hould be good for at least 5k while still passing the mot.
Short, sweet, much appreciated
We learn so much from you.
Interesting video. Its interesting to see the ideas manufacturer think off
Great video!!!!!!!
Very interesting as always.
Hey, nice vid, you havent mentiones compund aging, which isn't something it really happens to me as I wear them out in 2Y but when I got the car with 3yo tires and only a few km I got to a point they wouldn't stick anymore pretty fast, even still having good thread depth.
JS
Personally i prefer Pirelli tires.. Cheers lots of good information in your video.
Your videos are always so informative, worth a watch every single time
Thank you!!
Funny story with a question attached. I drove my brother and myself from Seattle to Portland for a funeral in my C6Z. I had 345 40 R19s Nitto NT05R’s on the rear. It was supposed to be clear weather however it decided to dump rain. I could not safely exceed 55 mph. The car was riding on top of the water most of the time it seemed. I filled up my tank at the beginning and again at the end. I calculated 29mpg. Question: does water and a slick tire equal significant reduction in rolling resistance (if so how much) or does simply displacing the water negate any potential efficiency gains?
Got Pilot Sports years ago and have never gone back. Thanks Michelin!
love this video!
Great Video, I was just wondering, why do Car tires have a lot less tread depth = equals less useful tire-life compared with Light Truck tires ? So far I haven't see any car tire with deeper tread then like 10mm. On my truck I can buy road tires with 20mm and All terrains with 25-35mm deep treads.
I love your video style, very interesting.
I have a question.
Say you have a 500bhp car in a hot climate. E.g 35/40*c. What would happen if you took that car to the north pole. How much more power would it make due to the decrease in temperature and higher volume of air. Would it make a substantial increase or not much? Every car I've ever owned always feels more responsive during the winter times. And when it's red hot outside I can feel an impact on the engine power.
lelelel cya BRO I agree, I wonder just how far (cold) you can go. I remember back in the day the little intercooler sprayers were everywhere, now it's meth/water injection but those are two mostly unrelated things.. It'd be cool (lol) to see what a steady source of say, 20*F air would do for naturally aspirated and especially forced induction 🤘🤘
Jason, How about doing a whiteboard about replacing one partially worn tire on an all wheel drive car. Say 1/32 worn, 2/32s worn etcetera. After getting a flat, the tire salesman wanted to sell me four new tire because my tire had worn 3/32s and he said it would be unsafe for me to replace just one tire. Please talk about the differential, the transmission, and tire ware. Is it really unsafe, will I damage my transmission like he said? As always, great work, Keep it up!
One other thing that you didn't mention is that tires can be paired to a vehicle's suspension. Usually this is with high performance cars, but also with all terrain models you see it as well, where the tire's characteristics are specifically designed to compliment the suspension of the vehicle - even down to ensuring that the spacing of the tread pattern reduces noise compared to the harmonics of the vehicle body. I didn't buy into this at first, and then I went and put tires designed for my oddball sized old Forester on it, and despite being A/T they significantly quieted the car down over normal touring tires, and improved handling, road feel and steering precision in all conditions except smooth dry pavement, where I don't really need it as much anyway.
What about the degradation of compound performance with time? I think that some great tires get really bad with age, Pirelli Cinturato is an example, after two summer seasons the compound on my tires became terribly hard, lost the grip.
When I started diving I tried to buy budget tires over the years I noticed that some wear faster others came defective or became unfixable in some cases and needed to be replaced sooner. Then I started buying more expensive performance tires and noticed they last longer and performed better for a longer period of time and didn’t have any mayor issues for the life the tire. Lesson learned as with other things you buy you pay for what you get. Also Michelin is not the type of tire that I buy anymore.
Michelin tires can be great on some cars in certain environments, but an absolute mess on other cars in the same environment. When I was growing up Michelin tires got great ratings for tread life and mileage, but not so good in the rain. Over time they have gotten better in the rain.
Hey Jason, wouldn't the degradation of the tire compound of a worn tire effect the grip quite alot and offset any gains to be had through the increased surface area? Most guys I know that go racing shave their tire to get better lap times, but after a certain amount of heat cycles they either scrap the tires or sell them for cheap. Can you elaborate on this?
my tires are about 60% worn but now it's summer time and here in Iraq summer is so dry and no rain will fall until next December, do you recommend that I don't change the tires until winter???
Hmm... These designs for better wet performance when partially worn are exactly as I've expected. The reason they're not more widespread is because they do compromise dry and new tyre performance significantly unless you resort to expensive solutions to compensate, such as narrower but deeper sipes that impose more stress on the tyre mold and make damaging them and the tyre more likely, more expensive tread compounds that are stiff enough to not flex too much when new while still providing good grip, etc. Basically, trading off a bit of new tyre performance for more consistent performance over the entire usable lifespan of the tyre.
as an engineering student I prefer the more complicated topics, keep up the good work, love the channel
Question for all you guys, On a dry asphalt will a regular new tire have more grip or does the same tire but worn so much that it almost became a Semi will have more grip?
my 2 front tires are worn due to trackday, and my rears have tread, cheap nankang sport tires, will the bald tires have more grip or will the rear tires with atleast 2.5mm have more grip ?
Still using my Michelin Energy XM1 from 7 years ago. Even if the tread is nearly gone, the tire still performs well except on wet as expect though and still doesn't have bulges unlike the former Bridgestone tires I had when its tread is almost gone.
Hi. First of all I like your channel a lot and thanks for sharing your knowledge and experience. I live in Baku, Azerbaijan and drive Volvo. We have a snow only several times a year (let's say several times in one or two months max) and the rest is sunny, cloudy and rainy weather with the prevalence of the sun. For instance this winter we had no snow in Baku (unfortunately) at all. My question is, what would be your advice on preference between all season tires and season oriented ones for these kind of conditions?
Thanks in advance.
My cousin lives in Chicago. Illinois, USofA, similar to the weather you have, and I noticed he had put Michelin Premier all season tires on his daughters Toyota RAV4 2WD. He said the tires did fine in Chicago winters and that he appreciated not having to switch to dedicated winter tires like our fathers and grandfathers used to back in the 1960s and 1970s. Now he does not let his tires get down to the 2/32 wear bars, so she is not driving on low tread tires in the winter. They are probably changed at 4/32 tread depth. About 50% of the original 8.5/32(17/64).
Are you able please do a video on the affects of tyre width on both dry, wet, low grip and high grip surfaces?
Very informative video! But is it not true that the compound grip changes over the age of the tires, because of the effect of UV Ray's and rubber losing it's natural oils? This is a popular belief in Pakistan so I hope you will be able to explain it. Thanks.
I've got some Heidenau K66 Silica winter tires on my bike and they perform like a beast in every situation! from -10-30° C they can Perform great but with sunshine and dry roads the sweetspot is between 0-20°C. They can handle icy (not iceplates xD), slightly snowy roads or while raining under 6mm water on the street pretty impressive. They feel like sports tires at our todays temprature about 15°C.
What about heat cycling effecting the physical characteristics of the compound. Isn't it true that tires become "harder" over time, reducing wet and dry traction?
Yes, I think a video on tire age would be a great idea! (versus wear).
Thanks. I really appreciate your channel and all the good work you do.
I bought the Michelin premier AS for my girlfriend’s sonata and it improved the feel and handling of the car in the dry and wet immensely over the stock Kumhos. I’m going to be ordering Michelin Pilot Sport AS 3+ for my Infiniti G37 next week to replace my aging and slightly dry rotted Dunlop Sport Maxx AS and I’m expecting a vast improvement.
Really good choice of a tire. I used these this past fall\winter in the PNW and felt super stable at highway speeds in steady rain.
A coworker has the same car you do and did the same switch. The Dunlops were not as nice, even when new, as the those Michelin tires. Lots of G37 owners I talk to cannot figure out what Infiniti was thinking with that Dunlop tire choice, especially for rain driving.
Awesome job, Michelin is the best!
I hope they gave you a free set of something grippy for the Crosstrek, for this most informing video , keep up the good work :)
Hi from a little town in Australia. I’m trying to work out the max CFM intake of my 4wd, and work out what it can actually receive through a 3” snorkel and standard filter. How do I work it out? It’s turbo and intercooled
This guys channel is awesome..just finished his turbo eps ..this is the thinking mans channel..really well explained,but some of the math formula I don't mind admitting,went straight over my head...👍🤔😳🙄
Hello, can you explain the difference about the sound on road of a new vs old set of tires.
SUper nice!
Nice educational video!! I liked it.. Still waiting for the S2000 update though
Hopefully by Wednesday!
Engineering Explained sweet 😅👍