the question is how who measures it. Rarely does anyone take actual measurements while driving. For example, I measure it with a pyrometer after the descent and the readings are around 70 degrees, but I also know that in the arc on the measuring lap the temperatures reach up to 90 degrees. In my opinion, what is more important is the temperature distribution and how the rubber wears out.

https://www.thunderlane.eu/pl/kategoria-produktu/bmw/

NK - new carcass. weight will be similar

a052 is super tires for light cars or short stages. dunlop 03g h1 is better choice for heavier cars and longer stages.

no. 5laps its 40minutes ride. vr2 hl version is for 5 minutes stage. no longer. (i use 245/40r17 for 600kg axle and after 5 minutes tires have 80 degrees and its and of limit temperature). vr2 r7a is good but to light cars for longer stages. vr2 r9a is good for heavier cars for longer stages. but r9a is not so fast like 03g. so in soft compounds vr2 are very quick. in hard compounds there are better choices.

These are Polish liqueurs. They are slower than Polish extreme liqueurs. In general, a friend once tested the first version RGC and compared it with Cup 2, then the RaceGC average mixture was 1 second per 1 minute slower. But rain races, super soft mixture, people recommend that they are exceptionally good. so for the track I would choose extreme vr2 hl as a light car and a short test (tires faster than dunlop 03g h1 by 0.5s per 1 minute), or possibly for a rainy race the super soft version RGC. https://www.odsserwis.com/sklep/?filter_producent=rgc&query_type_producent=or https://www.odsserwis.com/produkt/opony/semislick/rgc-02-fw-225-45-r17/ https://www.zakupopon.pl/kategoria-produktu/opony/opony-sportowe-extreme/

;)

If a guy says that on a wet surface in the rain, the A052 is faster than one of the best UHP tires, i.e. Pilot Sport 4s, then I don't know how you can say that the A052 is not suitable for rain. so Pilot Sport 4s is also not suitable for driving in the rain? unless we say that road tires UHP are not suitable for rain, only super-soft rain slicks. and in fact AR-1 and FZ201 are not suitable for rain. but the A052 is most suitable for rain because this tire is a soft tire, has circumferential grooves and will generate at least 0.9G on water.

my car 930kg has 245 rear and 215 front. can't imagine weighing 1400kg and 235mm tires. 1400kg it should be 245-265 tires without overheating them. Maybe 265 front and 245 rear like new audi rs3

https://youtu.be/igmzgojzZBk

Check this hot lap hl version https://www.zakupopon.pl/sklep/opony-sportowe-extreme/vr2/265-35-r18-extreme-vr2/

...

Ciekawe porownanie trzech rozmiarow opon 245/40r17 235/40r17 245/40r15 Czy najlzejsze kolo bedzie najszybsze? https://grassrootsmotorsports.com/articles/nankang-crs-size-comparison/

A050 hasn't e mark.

Of course. For example there are cars without wheel arches, such as Caterham, which cools down the tires. in the same way, abs and tcs allow you not to burn tires. Big aerodynamics increases the pressure on the tire and its heating. track configuration also affects. long straights allow the tires to cool. Someone has toe 0 one has toe 30' and it hit a lot. a lot of variables and everyone has their favorite types of tires for a given car and track.

https://www.avontyres.com/en-gb/tyres/zzr#page-2 Full specs because they have regulations, reduce costs? Don't you believe that they would be faster with 300/650 and softer tire?

Because they don't go to box after 1 lap. when fighting for the fastest lap in qualifying, the softest available compound is always chosen. Wider tire we can put allways. just install widened wheel archesa nd wider rims I think 2kg for axle / 1mm is max for a052 in long term track ( track temperature ~30°c., -3° camber, wide rim, 2 bar on hot ) ( it's my opinion, no calculations) For 03g h1 it will be ~3kg/1mm If we cann't do wider tire we din't put soft tire like a052 and choose harder like 03g h1 unless the track is short or cold

I had zzr with a64 compound and a24 compound. Both are 20 treadwear ;) a64 is medium and it's good to 70°c , a24 soft and it's to 50° c. A052 it's to ~65°c no more. Wider tire warms up slower. So if we have softer compound but give wider tire we will not overhit. Softer compound is faster in it optimal temperature than harder compound in it optimal tempetature so 285mm a052 60°c will be faster than 235mm 03g h1 90°c

whoever overheats, overheats. I have 215/40r17 on an axle weighing 350kg and it doesn't overheat. If someone's tire width is incorrectly matched to the axle weight, this can happen. It's better to have a soft and wide tire than a narrow and hard one. If someone's axle weighs 800 kg, it's clear that they need to install size 355 so as not to overheat the A052. thread wear for example TW200 means nothing. Avon zzr has tw20 and Lasts 5 times longer then 200tw a052. There is no point in looking at tread wear at all because it means absolutely nothing. I guess only people with zero experience look at this indicator at all. I understand that it would be like measuring the hardness of the compound with the Shore index. I wouldn't generalize. too many variables. one will test at -3 degrees camber, the other at -1. in one size the tire may be faster than in another, just like ar1, in sizes up to 17 there is no aramid cord or like this crs test one year slower then other or with cup2 where the n2 versions are much faster than the size not available in any production car 225/45r17 (I had and it is slow tire), the same In an RWD car, a given tire may have a different performance than in a FWD car. so I guess the experience of people with a given size on a given car and its configuration is the most important. although such things as durability and tire operating temperatures are rather consistent for a tire model.

It's stupid " Tyre Pressures: Front Rear Minimum Pressure (Cold): 21psi (1.45bar) 21psi (1.45bar) Suggested Pressure (Hot): 29psi (2.0bar) 29psi (2.0bar) " How? In lotus front is 350kg rear is 550kg and after some laps when we put 1,45bar on cold we will get in front about 1,8 bar ( from 20 °c to 55 °c ) and in rear 2 bar ( from 20°c to 75°c). Front always have about 20°c less than rear. So front need softer compound or different presures. So i don't read such stupid things and I prefer practice tests, especially those who win competitions.

Bullshit. The tread pattern itself says that the tire is to be more street than track, i.e. there are more circumferential grooves to drain water, and the fact that the tire is supposed to be more durable also means that it is supposed to be slower.

I recently tested 245/40r17 vr2 in the hl version (wheels 17x9 ). I did my best lap on it. a much faster tire than the Avonn ZZR or Cup2. but it actually gets quite hot, but the tire is very grippy. Recently, the availability of tires in certain compounds has become a problem.

A24 front and a64 rear? A64 is too hard in front. In elise when compound is the same front rear, rear has 20°C more temperature then front on track. So in front should be softer compound. I liked zzr . But extreme vr2 hl are much faster. And zzr are too stiff (sidewall) in my opinion.

a052 front and 03g r3 rear.

225 on rims 8' 1m45,96225 on rims 9' 1m45,41245 on rims 8' 1m45,96245 on rims 9' 1m45,33