New Tyre Rules 2021 explained - Low profile tyres, no tyre warmers, radical compounds

F1 has announced a tender for the new tyres due in 2021 featuring 18 inch wheels, a ban on tyre warmers and very particular degradation characteristics.
Here we look over some of the talking points about how this will all works and just how much things are going to change!
ALSO: an exclusive mini Q&A over the credits!
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Twitter: / chainbearf1
Writing / Illustration / Animation / Editing / Narration:
Stuart Taylor
www.chainbear.me
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[@Doubledeepfried]

Got a 1.6litre with 18" wheels and a spoiler, feeling more and more like driving a F1 car ;)

[@JakobusVdL]

have you got your stick on MGU-H from Halfords yet?

[@jorge8596]

Put a bunch of stickers and slam it for a proper F1 experience

[@stygal1487]

Don't forget to straight pipe the exhaust! Noise = horsepower

[@jammydodgerman]

And wind deflectors for another 50-100 horsepower

[@thegreatafrican3367]

And I'm pretty sure it sounds better than an actual f1 car

[@kevindulude-maher3022]

Personally I really like the look of the current, high-profile tires on f1 cars and I liked how distinct it looks compared to other categories.

[@offefone1669]

Yeah, same with the no glass thing

[@stpbasss3773]

Yup I think every racing fan doesn't like big rims with lopro tires. I personally hate the big rim look like the formula e cars.

[@bluebrawler3558]

i feel like with enough community feedback we’ll get them back, though not after a while, in fact it might be celebrated and marketed like “the thicc bois are back”

[@DaniFold]

"F1 Teams favour active suspension return" Williams: Looks like winning's back on the menu boys

[@Neo6918]

I hope so but the masterminds of that system aren't at Williams anymore

[@sohammhatre]

@@Neo6918 , I'm sure they have the IPR and just need to get Paddy Lowe back after they fired him unnecessarily.

[@Neo6918]

@@racetracknerd9484 oh I know just trying to remember Wílliams' glory days

[@thesnackbandit]

@@sohammhatre If you're coming from drive to survive, they made a mistake. Paddy Lowe did not invent active suspension.

[@MiniMii550]

Hello from the future! yeah about that...

[@fastballfilms4214]

“Pirrelli or whoever gets the contract....perelli” 😂😂😂

[@FoxPopvli]

"Pisello"

[@DNMii]

How do you say it wrong twice

[@thiccapo]

lol

[@SharkyDotDash]

to be honest i personally feel like part of the asthetic of F1 cars are the massive tires

[@ckasetti1233]

Totally agree. That is what F1 tyres are supposed to look like. This change will make the cars look more bland ie like a normal car.

[@rfldss89]

let's not prioritize form over function though.

[@jbc17c]

ThermaL I think as long as the wheel itself is black you wouldn’t notice a huge difference.

[@Reydriel]

The overall wheel size itself won't change though

[@SharkyDotDash]

Yes but low profile tires still dont fit all cars, i know its for function but it might end up looking as bad as Formula E

[@Therapor]

4:07, is he reversing around the corner? surely that defeats all the aero work they've put in?? ;D

[@emperorcaesarandyvsrex7950]

Williams should try that, they might be faster.

[@pjotr151]

You didnt know??? That is the big change for the 2021 season, all cars need to drive backwards.

[@MrtinVarela]

It looks like nordschleife kerbs. _Nurburgring Nordschleife GP 2021 confirmed._

[@ReickyTcharles]

hahahaha new era f1

[@tehgyb]

It'll create lift, which means less weight and better fuel economy... Duh 😂

[@martijnvv8031]

I wonder if they also get "SPINNERS" on those bigger wheels........ Other options would be: # Neon light under the cars. # Air ride # Chrome spoilers # tiger print upholstery # dice under the mirrors # airbrushed skulls with flames # NOS

[@offefone1669]

About time they change also to the aero screen so they can add some window tint as well

[@X3rCobraz]

I think flame paint and racing stripes should be banned, it adds too much of a speed advantage

[@nosesmasher]

And some big, badass subwoofers in the back...

[@rbt3010]

No shit man, hate this stupid changes. It's some kind of 2fast2furious shit. I bet Hamilton would reconsider his retirement at this point.

[@iuravi]

NOS would be great! But it should be limited to booster pads that look like those in Mario Kart

[@zephyrod7307]

Rip old tires. They were one of the more defining things about f1 imo

[@aragami0686]

rip thicc tyres

[@DL-nn1ws]

doge can’t be more right. And even more with that T H I C C doggo

[@sparepartssparepartsempori519]

doge but now we have T H I C C Rims.

[@aragami0686]

Timothee F. nothing can beat the T H I C C tyres

[@DL-nn1ws]

What’s with the T H I C C awnsers?

[@aragami0686]

DL 14 T H I C C

[@pauls5745]

oh god I can see it now. F1 in '21: the season of tire nightmares. '22 Pirelli loses the F1 contract

[@retro34]

Michelin reported to give drivers playdough for tyres as they forgot to bring the real thing - Hamilton rages

[@paulsd9255]

Rafael V Michelin drops out after exploding in America again

[@forza3943]

F1 will no longer race in America. Haas lost all sponsor's and will quit F1

[@michaelmulcahey2837]

Brazil and Mexico are still in"America".

[@Flay293]

No, they are in Brazil and Mexico.

[@bfrd9k]

The tire requirements are odd. They want the tire to wear at a specific rate and have their usefulness be completely diminished at specific point... F1 use to be a hyper-competitive sport for increasing performance, now it seems they are more interested in furthering the development of planned obsolescence. I don't like it.

[@birtalanlorant5572]

Increasing performance? By limiting active aero, aero below the cars, engine displacement, number of cylinders, fucking with tyres, front wings etc. The Porsche 919 Evo could probably win an F1 race against these over-limited POSs.

[@Hari5g900]

@@birtalanlorant5572 Nope.. it's lap record at spa was beaten by Vettel Hamilton and Kimi in last year's practise session.. Add to that, the Evo is an unrestricted lmp1, imagine what an unrestricted f1 car can do.

[@randomnobody660]

@@Hari5g900 I mean being able to turn at 10+ g means you can lap things that have double your every other spec if the track so much as loops in on itself.

[@brandonbentley8532]

@@birtalanlorant5572 amen brother! I'm a Porsche guy...a bit biased...

[@fillefilander]

@@birtalanlorant5572 no

[@DTLfan396]

Well Chain Bear once asked for tyres to be just labelled to soft medium and hard... FIA granted his wish

[@Mr6Sinner]

“Well everyone else has giant wheels and small sidewalls...” Are individually racing series not allowed to be unique from one another?

[@_RobertS]

I think the point you missed is that F1 has been left behind technology-wise in the area of tires, while striving to be at the forefront in everything.

[@WSKRBSCT]

Think you missed the point. The tires have become almost more of the suspension than the suspension is. Ergo, a change is needed to allow the teams to have more autonomy over how their cars handle suspension-wise, leading to more variables for teams and drivers to address in order to be competitive.

[@Mr6Sinner]

Robert S How have they been “left behind” in technology? Changing the size of the tire doesn’t change the technology used to make or use said tires. The only thing that changes is the method with which you use them.

[@Gentleman...Driver]

Motorsport series worldwide are regulated. The regulations prevent the cars for going too fast, or they prevent an explosion of costs. Normally you want your rims as small as possible, because they are adding weight to your car (rotating masses). The rims of some race cars are just big enough to fit the brake system. Brakes are key to race cars, especially in touring cars. They have most likely big discs. As a racing driver I prefer thicker wheels, because you can feel more the track and what the car does.

[@WimsicleStranger]

WSKRBSCT FIA will just ban suspension innovations, like the active suspension Mercedes created and then had ripped from them when FIA stepped in.

[@mhilmyfauzi4523]

I don't like the tyre blanket ban, solely because it's such an F1 thing, which sounds kinda ridiculous I know. But if you've watched Indycar, almost at every pitstop window someone will say "We don't use tyre warmers here" which I'm pretty sure it's directed at F1, and I like that.

No one watches indy car.

[@lillymon712]

nice joke sean

[@danielwagner4134]

But I'm sure it will cause more excitement. In DTM they banned blankets a few years ago and you can really see how hard it is for the drivers to deal with cold tyres and defend their position for a few corners after pit stops. Therefore the timing of stops is crucial, also for front runners who would have to deal with midfield cars when pitting early.

[@Super_Pax]

Factual joke Lilly

[@davciza]

"No one watches Indycar" It's a shame you see it this way, because the series is bloody amazing

[@FastPaull]

Can someone please explain the fascination of F1 trying to "relate" to road cars? Its a fucking single seat open wheel race car! I don't look to F1 for comparisons to my Toyota Camry. This is why we have WEC..

[@manat31790]

One of the reasons F1 want to relate to the road car is to attract manufacturers and automobile investors. One of the clearest examples here is Pirelli, who wants to get brand name association and more sales on the tires because people believe what they are buying for a road car are direct replicas of what they see on the F1 cars. Other than that, F1 is a gateway to an extensive R&D for on-road automobiles. F1 has a privilege of testing and developing new technologies a lot earlier than other types of sports. Traction control, active suspension, semi-automatic gearbox, kinetic energy recovery system, all of these techs are showcased as the pinnacle parts of F1 despite not being the inventors of the equipment. It also helps that staff from F1 teams are some of the most skilled and knowledgeable people in the world when it comes to car development, meaning you're working directly with highly experienced people. It does NOT matter if the open wheel car does not look like Toyota Camry (and neither does a WEC prototype). What the companies want are the data and engineers who can identify how techs work and how they can push the limit of the technologies. F1 is a super competitive sport that encourages fast and reliable development of car parts. The extreme and unpredictable conditions of racing allow for intensive and critical assessments of what each piece of the new tech can/can't do and how far it can be develop not only for F1, but sport/road cars as well. For a reference, look at the original 1990 Honda NSX. The car was developed by Honda's executive with the company's knowledge from its partnership with McLaren in the 80s-90s. Aryton Senna himself helped with the development due to his contract with the company. The low profile F1 wheels help car industries in that wheel and tires development will be made faster for road cars because the data will be more comparable. This allows the techs to be developed quickly to its fullest potential before they are being adapted onto a road car. It will also help other R&D such as brakes, suspensions, and other new techs that may be discovered in the future.

[@FastPaull]

That's my point though, WEC literally does all of those things and more. Not only do you have prototypes which are pushing the boundaries on technology just as far, if not more than F1 cars now. You have production based road cars cars racing in the series as well. I mean if we're going to talk about "relating to road cars" Ford literally built the new GT the way they did just so they had a competitive car for WEC. Now with WEC's "Hypercar" rule for 2021 it's only going to make it more exciting and even more relatable to road cars. I find it funny how F1 is touted as the "Pinnacle" for technological advancement. Yet they ban 90% of the advancements they've came up with! Traction control, active suspension, abs, etc etc etc. I get the fact they wan't to make it more attractive and "Affordable for other manufacturers". But i struggle to believe that a naturally aspirated V8 was more expensive to develop and maintain than a turbo V6 with 47 electric motors and a glorified thermo powerstation on-board. It's always 1 step forward and 2 steps back with F1. Only up until this year are they running lap times comparable to the v10 era. Gp2 lap times were getting alarmingly close to F1 lap times for awhile, and that's just frankly pathetic in my opinion. Fernando Alonso literally said he was BORED in the car just a couple years ago. Maybe that's why he went to WEC haha.

[@manat31790]

The WEC idea is a good point, as not every car company are interested in F1. Porsche and Lamborghini, for examples, are never really interested in F1. However, the banning things are arguable. F1 is not 100% machine. When you have new technologies, someone is going to complain that they want "man over machine". For example, James Hunt said banning active suspension was a good thing because the driver would have more inputs in the cars. What is good for one person is bad for another, and FIA is the one who have tolerate complaints and balance things out. Fernando Alonso's getting bored of F1 has nothing to do to FIA's approach to sport. In 2017, he wrote an article called "Fernando Alonso: Why I am racing in the Indy 500" for SkySport news. One of the main reasons he ditched F1 for Indy 500 was because he wanted to win races and he cited his entire resume to support his claims. McLaren Honda horribly failed that expectation and Fernando's found no other choice but to constantly sneak out to race in other series. Everything he did was for his own successes, and WEC showed he was more than capable of racing despite the McLaren's fails. That's the problem, though. I don't understand why Fernando keeps sticking with McLaren. If it was Senna, he would have jumped ship years ago. Instead, the guy keeps wasting his time with that team. Remember, everything he did, he did to get a competitive car to win. Since that fails but he is still contract bounded to McLaren, all he can do is complaining at the sport itself. It's all about rhetoric and playing a victim card, which is unfair to F1 as a sport.

Well, F1 is the descendant of the first Grand Prix races in the early 20th century. Who ran them ? Manufacturers wanting to prove they know how to make cars.

[@wingracer1614]

I agree. F1 should be all about performance and you know what performs better? Lower profile tires.

[@Drawn2B]

Cant remember some one said "Thank Christ my Ford Focus has F1 technology". If manufacturers want to use sporting pedigree to sell cars, they should take part in WRC and LeMans, Not F1.

[@ACEGAMER120]

Except the only company he mentioned in that aspect was Pirelli which is involved in many types of motorsports. And yes, if Pirelli can make a really good racing tire, it does cause some people to consider purchasing their street tires.

[@davidwillis7991]

I've heard next year a certain manufacturer has almost convinced F1 to change the rules to enforce an aluminium cylinder car design and a fuel that's primarily caffeine and sugar.

[@tommygun6866]

Could you do a video about refueling in F1? How it works, how it evolved, why it was banned and if it could return to the sport.

[@AndrewFrink]

it was banned for safety reasons. Namely due to all of the very real fires that were occurring. There will always be a small amount of fuel between the shutoff device and the very tip of the nozzle, and the exhaust piping will always be hot enough to ignite the fuel on contact. I very much doubt it will return any time soon. At least while the fires are still in living memory. Here is a pretty good example of what has/can go wrong. kzbin.info/www/bejne/hafKm5uchrGHhM0

[@Argosh]

A video about refuelling is about as useless as one about steam engines. They're both just as likely to make a return to F1...

[@tommygun6866]

Why shouldn't he make the video? Just because it isn't likely to make a return? His channel is focused around F1. Refueling was an integral part of F1 back in the day. With his style of presentation and knowledge, I think that it would make for an excelent video.

[@Rab1dGAMER]

Refueling will most likely not return due to safety and the fact that it's not needed anymore.

[@thugson1166]

holy shit that was not at all what i was expecting, but definitely something that very easily could happen, about as easy as running over a mechanics leg ay kimi

[@kuglepen64]

You forgot that larger brakes can be fitted.

[@jort93z]

Well, the brakesize is mostly restricted by the regulations rather than the size of the tires. Even with the current tires they could fit larger brakes, but they are not allowed.

[@rancidalankar1322]

moreover larger brakes would increase overall weight significantly which is a big no no in F1.

[@aragami0686]

kuglepen64 bigger brakes doesn't always mean better. too powerful brake can easily cause lock up, which becomes more dangerous and producing less stopping power overall

[@MrtinVarela]

+doge To the contrary, bigger brakes provide finer control and lower chance of catastrophic failure for a given torque. Peak braking power means nothing when you can just adjust the damn pressure.

[@jort93z]

Eh, i think they would get larger brakes if they were allowed. Theres no lower limit, only an upper limit. I believe all teams are using the largest size of brakes they are allowed to use. Theres also a limit on the amount of cooling for the brakes. Because larger brakes will be more heat resistant(they sink more heat and have a larger surface area) and can give you a higher maximum force.

[@ElChasco_official]

Fia→ Wants to reduce costs. Fia→larger wheels→full redesign of suspension→no sense Fia wants more safety→bans tyre blankets

[@wingracer1614]

Actually a larger wheel would help cut costs simply by reducing the need and importance of inerters (an area teams have spent ridiculous amounts of time and money on). Throw in active suspension and your development costs over a span of years just got slashed by millions.

[@samhesketh]

El Chasco lmao

[@stuinNorway]

Given everyone knows 2021 is a season of significant chances, it makes sense that they'll be doing a major redesign on the chassis already. Beefing up the suspension and adjusting how the arm travel to compensate for lessened tyre wall deflection absorbing shocks is not such a huge redesign either. Removing tyre warmers will mainly have an effect on the start of the race, as the formation lap becomes much more vital for tyre warming, at pit stops, they might simply have all their tyres in heated cupboards to reduce that lack of warmers a bit. Removing warmers will also lessen the undercut effect slightly and will put more emphasis on the driver managing his car.

[@christianbarnay2499]

The banning of blankets is not opposed to safety. This is just a consequence of the new tyre compounds being much safer at low temperatures than current tyres. This will allow for even lower speed limit under safety car. Which means the pace car won't be running at its limit and working conditions will be safer for people on foot evacuating broken cars, repairing protections and cleaning the track of spilled fluids and broken parts. And drivers won't have to swerve like mad men to keep their tyres hot for the restart. Also slick tyres will still have grip in mildly wet or foggy conditions.

[@cooltwittertag]

@Sean Price It's obvious it will work.

[@DJAvren]

FIA: New tyre rules Pirelli: Dammit Jim, I'm a Tyre company, not a wizard.

[@esvegateban]

Been following F1 from almost 40 years and I have always thought F1 should not be road-relevant. At least not primarily so. Why should it? These are racing machines, experiencing things you'd never experience unless you own a FXX or something like that. Economics, of course, and the need of manufacturers to sell. But it's a mistake. Just imagine where we would be if rules weren't thought to make F1 road-relevant.

[@alekonicolacakis7002]

whether F1 itself should be relevant to the road or not is one thing, but i think innovations from F1 will spill into regular cars anyway regardless

[@superphonixlp4152]

Sad to see real innovation like active Suspension + 3d turning wheels banned, wich could actually improve road cars... just as it originally was meant to be in F1

[@saullevy5074]

I just saw the notification and I have to say that am really confused about the new rules. I immediately came here to have a guaranteed perfect explanation of the new tyre rules

[@TheDanielsliekmanis]

Saul Levy Basically, larger profile tyres on performance mean, faster turning response, faster braking due to larger brakes, a slightly less lateral g tolerance. From a practical point of view it means that the 18" tyres have a lot more relevance on the road, so you could buy very similar tyres for your car that are on F1 cars, but of course, with grooves.

[@TheDanielsliekmanis]

J P in that case i was successful :D

[@rgarlinyc]

Thank you once again CB - my knowledge and understanding of F1 ramps up every video you release, and I can't fathom how I managed before I discovered your channel!

[@robert.39]

I miss the 2018 tires, i still call the reds supersofts the yellows softs and white mediums

[@minoassal]

F1 DUB edition

[@precariousbyte]

2024 F1 DONK

[@nickz4993]

2040 F1 on rails

[@DriverScottieC]

Yes please!

[@Cobra_427]

"house real big, cars real big, belly real big, everything real big"

[@adonyestimon4392]

Lmao lol

[@MrWhiteVzla]

Chain Bear had no idea what was going to happen 2 years later. lol

[@slowpolka8806]

I love how you present. you don't take any amount of jargon for granted. for example you go right out and show me what you mean by "tire wall" rather than thinking I know exactly what you mean by the word alone. I don't follow F1, but I watch every one of your videos, for this very reason. your presentation skills are top notch.

[@sydclark5581]

1st time I've watched one of your clips. They are so clear and informative. Even the layman should be able to follow and understand :)

[@Raul_Menendez]

Am I the only one who likes the rules from the 2000-2010 era?

[@tinglydingle]

3:12 I had no idea how badly I wanted F1 tyres on my Golf until now...

[@geehammer1511]

Buy Michelin tyres.

[@GinoNL]

Yeah lol

[@rbd318]

Love the videos. Your animations are great at getting straight to the point and showing what's happening with little distraction. Good work!

[@nznegativeions]

That Jag looked sick with those fat tires

[@sombraarthur]

My precise thinking, Oh Lord!

[@johnsvensson6540]

You see this (sort of) on a certain type of custom cars in Japan.

[@Krilin84]

What do you think of Gary Andersons idea to inverse the rules for DRS - enable it for cars with a bigger than 1 sec gap to the car ahead, and disable it when you get within 1 sec, in order to keep the field more bunched up and to get to see more "proper overtaking" moves?

[@Aravinthmech]

The problem is no one will be able to overtake because of the dirty air. But combined with the next year's regulation of simpler front wing, this could be effective

[@yueminxx2210]

YES

[@umarsajid5075]

I was thinking the car that is being attacked by the car behind with DRS the car infront could open his DRS half way through the zone or either open when it is side by side so its not a sitting duck and gives it more of a chance to defend position unless it is being lapped

[@MrtinVarela]

That's basically a real-life equivalent of rubber-banding.

[@ctdesing]

Disagree, Formula 1 is NOT a driver focused competition, it is team focused and that would overthrow team effort.

[@squelchedotter]

"I'll make a video on suspensions soon" well, only two years later :D

[@mjtuperz]

1:18 lol great Mario Kart reference as Bowser always has the top speed

[@ericsbuds]

great stuff as always! wow. I did not realize the tire blankets kept the temperature at 80 C!!!

[@heavyharris5580]

As a Mercedes Technician, I see bubbles and blowouts every day on low profile tires. I wonder if this sort of thing may be more common in F1 in the future. Of course, these sort of injuries are caused by potholes, which a racetrack (hopefully) doesn't have. Very interested to see how this plays out. Great video as always.

[@jort93z]

I mean, it works for formula e and indycar right?

[@mhilmyfauzi4523]

jort93z And WEC

[@MrCourty89]

What you'll probably find is with the lower profile tyres there will be less give in the tyre wall so agressove use of kerbs will have a higher tyre failure rate, see it a lot in other forms of motorsport such as Aussie v8's and btcc, also the load on the inside edge of the tyre will increase per square cm so punctures due to high camber angles could be more common

[@kempo_95]

MrCourty89 That would mean more on track racing and less cutting corners or going wide. Which I think is a good thing as well.

[@MrtinVarela]

+kempo 95 It also means less agressive racing which can be good o bad depending on which driver you look at.

[@jamesbloomfield1589]

Am I the only person who prefers having all the different names for each compound than the three tyres with the same name but different compounds

[@boudewijnb]

James Bloomfield nope

[@petrolhead9927]

Also i like the colours. And they don't confuse me at all. But F1 needs to be accessible for the casual watcher

[@christianbarnay2499]

During a race you just want to compare tyres between cars to know who will gain or lose performance when they change tyres. Comparing which tyres were selected by the authority on different tracks is meaningless.

[@viktorpetukhov727]

@@petrolhead9927 More accessible for a casual watcher, like saying today we have a hard compound tyres which are softer than last race softs and harder than the next race hards. It's like adding 1 joystick to your oven instead of 15 individually named buttons.

[@HappyBeezerStudios]

They should just name them. T1, T2, T3, T4, T5, T6, T7, T8, T9 _"Oh, for this race we're gonna choose T3, T5 and T8"_

[@TheAstvald]

You deliver very detailed content in an extreme organized way of presenting. Thank you very much!

[@wullxz]

Dear youtube algorithm: I don't really watch F1 but thanks for recommending this video to me *in time*.

[@adamismail2883]

"bOno mY tYreS ArE GoNe" -Lewis Hamilton 2020

[@christianellegaard7120]

I think that they should provide 4 tyre compounds for each race instead of 3.That would allow for more variation in pit-stop strategies between the teams.

[@uguhhibh]

how have I only just found your channel? Your work is really good :)

[@olderthandirt7023]

Thanks Chain Bear, I really do enjoy your videos, most informative and well executed.

[@t1995roger10]

Do you think there should be a tire war in F1?

[@offefone1669]

Obviously not. There is no way to limit the tyre wear and soon everyone is just using one tyres from one manufacturer anyways per race

[@Enover5]

Boy, if Goodyear or Michellin entered F1 in 2021, we could finally see the return of the great tyre strategies. Imo, forced single pit stops and no refueling are what made F1 what it is today, a bland marketing piece made just to entertain and not anymore to showcase creativity combined with technology

[@vandecayear10]

@@Enover5 that's what happens when we want people to stop dying behind the wheel.

[@bobmathers4124]

hears "slicks in the rain"... remembers Vettel...*snif*

[@truckertj2109]

hears " slicks in the Rain" ...remembers Michael Schumacher

[@rafaeloda]

Hears slicks in the rain... remembers Senna in Donington 93.

[@mrc14_2]

hears "slicks in the rain"... remembers everyone in german gp 2019

[@geehammer1511]

Hears "slicks in the rain" ... remembers David Pittard driving a lap of Nürburgring in VLN on slicks.

[@007abc78]

Hi! I really love your videos! You have made me a much passionate F1 fan, knowing all the ins and outs of the car. Keep doing great! :)

[@jaq8657]

Great. Explained more than I realized to ask. Strong work, Thank you!

[@voswouter87]

Suffocating regulations everywhere. What a shame They could go much faster without all these regulations. Like liquid cooled breaks, skirts to hug the road, etc.

[@DDxRaptor]

Nice video, although you forgot one important thing. When the height of the tyrewall is smaller, it gets tougher/stronger, thus increasing the amount of G-forces that the tyres can withstand. This increases the grip (=speed) through corners because the tyres won't stretch as much as before and therefore, drivers can be more aggressive. If we suggest that the suspension is tuned perfectly, the cars will also be a bit more controllable since the drivers will have more feedback as before.

[@crienospmoht]

Good video, It's nice someone shows Pirelli the respect they've earned. I don't think the FIA really expects Pirelli to make tires fitting those extremely tight parameters, I think they know how good the folks at Pirelli are, and know they will get closer than anyone to meet those specs.

[@rabihhawwa2734]

Have you considered doing podcasts about F1? I would happily listen to you analyse a team's strategy or explain new regulations. I do a lot of driving, so good podcasts are always welcome. Keep up the great work!

[@Superfluous.]

F1 Driver and FIA think that building a tire which is made of rubber is the same as building a car out of carbon fiber, steel, aluminium and so on (you guys get the point). Rubber isn't predictable as stiff materials are. Rubber doesn't fail with the same consistency as (picking one of previous examples) carbon fiber does. Rubber needs to grip the car, have a temperature window much smaller than all the components in the car, needs to withstand massive amounts of force and they wear out so fast compared to any other component on an F1 car that it can't really be compared to anything else. So by asking Pirelli to not only build a tyre made of something which is not as consistent as a metal that can handle and provide the necessary performance to an F1 car but to also include a defined time window of lower performance in accordance to tyre degradation (by the second AND by the lap) is simply ludicrous and pretty much impossible. More likely than not, someone's gonna have to give in on one of those demands. If Pirelli does pull that off without someone complaining about an aspect of the tyres (FIA, Teams or Drivers), I swear to god I'll not buy any tyre from another brand except Pirelli for the next 60 years of my life.

[@sombraarthur]

Sign me up too, and I will even make my own bastards use Pirellis too, until cars can fly and mankind does not use them anymore!

[@weldorman8495]

Very well said. Kind of makes you think of trying to make a sword out of chewing gum.

[@chrisc3825]

Awesome, thanks! Q: Are “shaved” tires actually shaved or just molded smaller? I’ve heard the latter is what is happening despite the terminology suggesting the former.

[@aformalevent]

great stuff! thanks for the info. I really appreciate your visual style and information density :)

[@sherfillouisy]

Thanks for always keeping me updated and well informed

[@edgy848]

Excellent video - as always. So accessible, even for someone like me with no physics / engineering background! Quick question: would you like to see a return to in-race refuelling?

[@loopzgarcia5744]

I do, i miss all the drama of watching pit stop frantic and sometimes chaotic unfoldings

[@tommygun6866]

Bigger rims (from a visual standpoint) are just as if not worse than the HALO.

[@no0se4u64]

tommygun6866 agree

[@MrtinVarela]

They're gonna make the chassis/halo fit together better for next year. It's already blending "ok" on some cars. Unless there's a massive, miracle chassis or rim redesign (carbon fiber rims?), there's no fix for ugly tires.

[@xCamiee]

Just me that doesnt even notice the halo anymore? Its getting kind of boring complaining about it and its not as bad as people make out

[@sejegamer123]

tbh. i got so used to the halo i think the cars looks ugly and weird without it!

[@YGVares]

LinX i feel the same ! 2017 cars look like something is missing, almost like if it was broken or something 😂😂

[@u9Nails]

That's some good graphics you out into these videos. These tire changes are good on the whole.

[@tIhIngan]

You always have great animations in your videos.

[@MiniMii550]

Oh now naive we were to think these regulations would actually be executed in 2021. That being said that extra year was worth the wait the racing couldn't be better!

[@10shatrunjay]

Cat's name please! :D

[@oinka720]

I can't wait to find out if it is named something weird like "Ayrton" or "Schumi" or "Chain Cat"

[@Mech-Badger-Man]

Chain Cat is just there username.

[@JontysCorner]

I would love to tell you but it's not my place to.

[@rayanshgupta3202]

F1 should have 5 years with no regulations on cars

[@stryker1992]

great video, awesome explanations and graphs are easy to understand, thanks for that

[@MultiGhost119]

Can we start a petition to get rid of the FIA??!!

[@thecocooreo]

Would be nice to see Michelin get the contract and kick some ass making the cars faster by sticking to the track so well that they even make Romain Grosjean look like a professional race car driver! lol

[@ThinkKritz]

Grosjean is good tho. Did you see his mad dash into 6th in Germany in the last few laps?

[@saiintFPS]

i think both haas drivers are extremely fast but make alot of mistakes (grosjean pushes too much and magnussen is too aggressive with other drivers). Both are fun to watch when theyre on form

[@mrc14_2]

But what about the banked corners?

[@Scy]

This video popped up again, so I watched it again. First of all, one or even two stops (unless you're on the hardest tyres) would become really difficult, and might lose you enough time that even a three stop is the minimum practical solution to any race. Just that alone, combined with the fact that you know some might even try four stops with such early tyre degradation, would make for a lot of strategic play. Let's just hope the FIA does away with the two compounds requirement and lets teams decide for themselves. If we see both a successful four stint soft run and a successful two stint hard run in 2021, I am very happy, because that means strategy wars, and as with most wars it leads to new ideas.

[@AlpakaWhacker]

In theory, the lower profile tyres will help drivers in situations where in the past cars have occasionally over-steered suddenly or slid under acceleration, the driver has attempted to correct but because of the energy stored up in the sidewall of the tyre (i dont know if that's actually it but that's certainly how some f1 commentators have explained it), this causes the car to suddenly snap the other direction, putting the car into a spin and even into the wall on occasion.

[@CardboardSliver]

Remember when F1 was fun? Me too.

[@Kevin-dt9xm]

fia: makes a change to a system that was completely samey so that now teams have to come up with their own suspension and have creative strategies instead of all of them just using the pirellis as suspension f1 fans, presumably here to see teams trying to beat each other by coming up with their own creative strategies and configurations: what the fuck man, how dare you give me what ive been asking for?

[@renzohering7108]

can you make a video about tyre and fuel saving

[@cloerenjackson3699]

Lovely presentation. Factual, to the point. Nice job!

[@santiagobenites]

I'm not a big F1 fan, but I consider myself a casual follower, and when I want to know what going on or what's new I come straight to Chain Bear F1. Well done, very interesting, and well explained. Thank you.

[@AJ-bi6ns]

Speaking from experience, P Zero tires on road cars are awful.

[@givemeabreak8784]

I had those on my AMG and were brutal ! Never again.

[@vandecayear10]

@Bernardo you can pick up a second hand AMG for half the price of a new Camry, bro.

[@Nesformers]

And so begins the slow degradation of F1 into F-E

[@tedjames9176]

LX-24's Bullshit Let’s pray these changes don’t affect the handling of the cars and it becomes degraded to a shit show like NASCAR!!

[@stpbasss3773]

Pretty soon they'll put that stupid fan boost bullshit in F1 lmao, fans determining who's car is faster and stupid circus shit like that.....drive through a certain area on the track and get a speed boost lmao.

[@nicolasbermudezmangana9205]

I am amazed at how much technology can be applied into tweaking tyre performance. This was suuuper informative. Thank you so much!

[@franklinwright269]

Thanks for answering my question! It was great too hear you opinion it.

[@UltraR500]

Hey Chain bear, why are they narrowing tires when the goal is to improve racing? Wider tires = more mechanical grip right? So in slower corners the cars can follow easier, now they are going to be Skinnier and more skittish so I don't understand the change... (Nothing against lower sidewalls, that I understand)

[@jort93z]

The goal is to improve the race for the spectators, not actually making them clear the laps as quickly as possible. You can see that clearly in the regulations. Less grip will cause more mistakes, making the race better.

[@Thumbsupurbum]

Wider tires are also harder to warm up and keep them in their optimal temp range. Which is going to be important without tire blankets. By narrowing the tires down a bit, heating them up will be a bit easier, and the tires shouldn't lose the heat as quickly on the straights either. In theory anyway. Also keep in mind the front wings will be wider in 2021 as well, per the 2019 regulations. Wider tires and wider front wings = more broken wings and tire punctures.

[@WSKRBSCT]

It almost seems like they're trying to dial-in understeer - the new wings' performance being the ?

[@coast2coast00]

It could also be that they see more degradation in the rear than fronts, so they are also balancing tire wear. (just a guess)

[@gordowg1wg145]

More to the point, perhaps, is potentially greater inertia of the wheel assemblies. 90+% of people don't give a heck for any race programme the tyre manufacturer is involved with, very few could even tell you who the supplier is. Tyre technology, or rather understanding how the tyres work on the vehicle, is a black art and these changes are a double edged sword - while some modelling may be transferrable from other disciplines, much of the current understanding and modelling will have to be thrown out. The suggestion that they will potentially have an even narrower optimum operating range will, no doubt, be greeted with horror by the engineers who already are having problems getting, and keeping, the tyres in the current range. Agree that the compound criteria is daft - it does bring into question whether heat cycling will partially cure them to improve, or tweak their race performance - possibly teams using more of their race allocation prior to the race in Qualli' or practice? What is also going to undergo some massive changes is the braking, as they will no longer be as restricted by the wheel inside diameter.

[@wingracer1614]

If properly designed, the wheel should only be a few grams heavier while the tire will actually be a LOT lighter. So total rotating mass should be less.

[@alexjohnward]

wingracer 16 thats impossible, the 13's are smaller than 18's and will always have smallet weight and inertia

[@wingracer1614]

You are ignoring the tire. Rubber is heavy. Less rubber means lighter tire.

[@alexjohnward]

wingracer 16 sidewalls are very thin and light, pirelli have confirmed all this years ago, the wheels will be heavier by a much larger margin than rubber savings, but itll look "cool"

[@gordowg1wg145]

True, the construction is very lightweight, esp' when compared to 'road' cars - but, remember, while there will be a reduction in sidewall height, there will also be more mass added in the bead/breaker area as it will be significantly longer. Then, of course, there is the additional mass of the wheel - square law, remember - and the bigger brakes that will then be used will also compromise total mass, both unsprung and rotational inertia.

[@Jimplaysdrums]

Great series of videos. Extremely informative.

[@karmickid3928]

Thank you, that was a really helpful explanation of such a technical topic.

[@doinyourmom6359]

If active suspension does indeed return, and one teams system is not as effective as anothers (aka it doesn’t work), how much time would they lose over a lap as a result?

[@Barni2212]

Mutch. If doesn't work you will be probably near the last teams.

[@laurencef8535]

im sure all the teams will put so much time and resources into it, that theyll all be as perfect as they can be for their respective suspensions, cept williams, theirs will probably act like one of those bouncing cars but they cant turn the bouncing off

[@ctdesing]

"Active", be it suspension or aerodynamic is banned from Formula 1.

[@wingracer1614]

The nice thing about active suspension is that if you are behind your competition, you don't have to spend millions designing a whole new system. All you need is a software update.

[@bjorn1583]

all they need to do is learn how to tune the suspension just like they do in other forms of motor sport

[@stevec3982]

2:40 so bigger tyres = faster. hmmm tractor tyres on an F1. This would be genius!

[@Kevin-dt9xm]

bigger wheels is a higher top speed with the same vehicle

[@Kevin-dt9xm]

if you had tires the height of a tractor tire on an f1 car accelerating in a straight line, ignoring aerodynamics youd eventually reach a higher top speed than you would with the 13"s

[@Fireheart318]

Your comment on bigger tires being bad for acceleration got me thinking: What if the tire somehow started off small for improved acceleration, but slowly expanded as the car got faster, aiding in top speed instead? Obviously, some sort of active suspension or other tire-retract-y thing would be needed to compensate for the added ride height, but that should be easy enough to pull off.

[@robw7676]

Erm, no, for a number of reasons. That's what gears are for.

[@darikdatta]

I am SO glad the rear tires aren't getting narrower. Those wide tires in the back just look so much better, just like they did before the 90s, It's worth putting effort into keeping that look.

[@kasparasstep471]

What is your cat's name?

[@duosonic391]

Came down into the comments to see if it had been asked

[@112cla50]

mine is MR. CAT

[@roryforham]

great so now even f1 has big chavy rapper bling wheels i dont get why people think bigger wheels look better who looks at an e type's wire wheels and goes this really needs some 20 inch wheels with some rubber painted on. the current gen of f1 cars look fantastic with the aero and wheels like the tyrells and lotus's in the 70's

[@AngryKirbyHatesYou]

Its not about looks. F1 is supposed to be one of the leaders in technology driven motorsport. So why do they still use such archaic tires?

[@gavcom4060]

roryforham they have performance advantages you know. that’s why high performance vehicles usually have low profile tires

[@cjeam9199]

gav com but they also don’t have some performance advantages. Dragsters have high profile tyres. Larger sidewalls are beneficial for suspension too

[@roberthorwood4276]

Great explanation again Chain Bear - well done and thank you, keep'em coming please :-)

[@oschoa]

bro i don't even watch f1 but your videos are so good i watch 'em anyway. thanks!

[@hueybenning4886]

You are very clever

[@servy9009]

how would hypersofts work on such a thin tyre

[@chainbear]

All the compounds will fundamentally change

[@LordKirtash]

Great video, as always. Thanks for sharing.

[@NxDoyle]

An invaluable resource for fans of Formula One. Thank you, Chainbear.

[@TheSteinbitt]

Why don’t they just remove all regulations and make it interesting again?

[@superphonixlp4152]

Like Can-Am 😍

[@FidelisG]

3:16 them chonky F1 tyres made the Jag XF look like a drag racer

[@nevoyu]

Here I dont watch F1 but I still find these videos fascinating to watch

[@roberthorwood4276]

Another Good one chain Bear, good explanation :-) more please

[@MatsNorway]

FIA is micro managing. Doomed to fail.

[@LittleLightIsaOnce]

FORMULA RICE 😃😂. Now it needs neons. But for real will these changes make f1 cars faster.

[@sombraarthur]

I hope they put some sick sound system, a huge neon light under the body tray and some automatic dashboards to where the Xbox One is...

[@thepirates2518]

YOUR CHANNEL IS AWESOME!!!!!

[@pleclerc1]

well done, you have a new follower for sure, looking forward to more videos :)