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[Andy H]

Hopefully not to contentious a subject..... (and CEM is allowed to have a different answer to anyone else)

what are the temperature ranges of:
Summer tyres?
Winter tyres?
M&S (mud & snow)?
any other categories?

Is it possible that manufacturers are playing fast & loose with their labelling & selling tyres that are good for 50 degC (in say Turkiye) in a country (UK) where 25 degC is a hot summers day?

[feeutfo]

Who are we asking Andy? Manufacturers? Or oofers opinions of said temps?

[feeutfo]

If your asking me, given -1.5 temps on the way home, I don't see a problem at all with cold temps on road tyres, its what they are designed for. Grip is great, apartment from the rock salt spread around the place.
Should add, the roads are bone dry here.

[Andy H]

Who are we asking Andy? Manufacturers? Or oofers opinions of said temps?

A bit of both really.

I don't imagine any manufacturers are reading at the moment but I am interested in what DBug knows from an insiders perspective.

If anyone has got experience of tyres that fall of a cliff as soon as the mercury drops it is worth sharing.

[cem_devecioglu]

thanks Andy
 
tyre compounds extremely change from brand a model a to brand a model b  
 
so telling the ideal working temperatures for season tyres hard to tell really..
 
however, a normal summer tyre must be able to work from +10 and up without serious performance loss but in reality their performance changes when it reaches 45 celcius in shadow (and take into account the tyre temperaure after several braking under those conditions) .. 
so there is really a very wide working range which is next to impossible to implement with a single compound..
 
besides high end performance tyres really need warm up ( like potenzas I used before) 
otherwise you will be dissapointed.. as a conclusion for summer tyres if you dont want surprises normal passenger tyres are more suitable for normal daily traffic usage (and also will be better im temperatures lower down the scale).
 
 
now winter and snow tyres.. there are very very different thread and compound designs.. some are more towards city usage in winter and cold ( those tyres dont perform adequately in ice..been there done that) but they will be way better than a summer tyre.. (youtube has lots of videos about that)  I always choose my winter tyres for ice conditions sacrificing dry grip (so its obvious that no one single compound and pattern can meet the winter tyre needs) because ice is the most harsh condition that nails you whereever you are or throws you out of the road..  temperature range obviously below 10 celcius but I use them until end of march even at 20 celcius (dry grip of course a bit less at that temperature)
 
all season tyres: imo its more suitable for UK conditions thinking of budget (and if you dont plan to hammer the car)
theoritically it must work in all temperatures but in reality tyre makers sacrifice grip in higher temperatures..
 
 
 
 
 
 
 
 
 

[dbug]

Who are we asking Andy? Manufacturers? Or oofers opinions of said temps?

A bit of both really.

I don't imagine any manufacturers are reading at the moment but I am interested in what DBug knows from an insiders perspective.

If anyone has got experience of tyres that fall of a cliff as soon as the mercury drops it is worth sharing.

Quite a lot Andy, but my opinions don't fit with the OOFs resident tyre expert!  Perhaps it would help if there was a basic understanding of how tyres work. 

Perhaps we should start yet another of the many tyre threads now running

[cem_devecioglu]

and must add I see some UK shops advertise summer tyres as all season   and baffle me as usual

[tunnie]

and must add I see some UK shops advertise summer tyres as all season   and baffle me as usual

The problem is we can quite easily have a winter without any snow...

I bought mine for a specific reason (Austria) if I had not gone, I doubt I would have got round to getting a dedicated set. But I think I'm setup for at least 3 years maybe 5 with this setup of winter set and summer set.

It does genuinely stagger me how quickly some members get through tyres 

[tunnie]

Who are we asking Andy? Manufacturers? Or oofers opinions of said temps?

A bit of both really.

I don't imagine any manufacturers are reading at the moment but I am interested in what DBug knows from an insiders perspective.

If anyone has got experience of tyres that fall of a cliff as soon as the mercury drops it is worth sharing.

Problem here is that a lot will be down to drivers perspective on grip?

What I call grip, TB calls shite 

[cem_devecioglu]

and must add I see some UK shops advertise summer tyres as all season   and baffle me as usual

The problem is we can quite easily have a winter without any snow...

I bought mine for a specific reason (Austria) if I had not gone, I doubt I would have got round to getting a dedicated set. But I think I'm setup for at least 3 years maybe 5 with this setup of winter set and summer set.

It does genuinely stagger me how quickly some members get through tyres 

Tunnie an all season tyre and a summer tyre are different things by their compound and pattern..
and universal definitions wont change according to country

[jerry]

Winter tyres differ not only in having deeper and different tread shape but also in the compound itself so that they perform better in colder temps than warmer ones. Keep them on as the weather gets warmer and they'll wear a lot faster. Ive got nockian mid-range on and theyre designed for use at temps below 7C. Must say that I really do notice the difference with them and would recommend. Having said that of course my "normal" all weather tyres are midrange price ones -maybe premium "all weather" would perform better once winter bites? All I know is that with some of the country roads I use daily , having a heavy rear-wheel drive automatic , I need a little bit of help in this weather  . Still, sorry, dont want this to slip down into another slippery thread over winter tyres 

[TheBoy]

If anyone has got experience of tyres that fall of a cliff as soon as the mercury drops it is worth sharing.

I can only comment on my own experiences, and not on heresay, and what the bloke down the pub said.

Whilst I don't for a second doubt that good quality, proper winters will offer more grip than similar quality summers when cold, I have not experienced any tyre that has dropped off a cliff purely based on temperature. Yeah, I've got really close to getting stuck in snow before, but suspect that was more the ice under the snow, rather than the temps per se. No idea if a winter tyre would stop me getting stuck in such scenarios? Suspect I'd need studded tyres for that.

-3C this morning, so not particularly cold, but below the 7C temps often quoted for when summer tyres no longer perform, and no difference in grip levels on the Bullet's Dunlop Sport Maxx RTs, both in throwing it around the Milton Keynes roundabouts, and in braking, to what they were last week then it was much warmer.

[Andy H]

I have had motorbike tyres that scared me when the temperature got close to freezing but I haven't noticed the same with car tyres.

I strongly suspect that the tyres we buy in the UK are not the same as the tyres that are on sale in hotter countries. I suspect that the branding remains the same but that the devil is in the detail small print next to the tyre bead.....

So far we have
CEM summer tyre +10 to +45ish
Jerry winter tyre below +7

[aaronjb]

Tunnie an all season tyre and a summer tyre are different things by their compound and pattern..
and universal definitions wont change according to country

Of course they do.. if you take extremes;

Take Dubai - record low of 6C with a mean winter temperature of 15C - now tell me a 'summer' tyre wouldn't be an 'all season' tyre there?

You certainly wouldn't run 'winter' tyres in October there, for example - the mean is 29C - but you could happily run 'winter' tyres in the UK in October. Then again, you could happily run 'summer' tyres in October, too, with average lows of 7C and maximum 14C...

[cem_devecioglu]

Tunnie an all season tyre and a summer tyre are different things by their compound and pattern..
and universal definitions wont change according to country

Of course they do.. if you take extremes;

Take Dubai - record low of 6C with a mean winter temperature of 15C - now tell me a 'summer' tyre wouldn't be an 'all season' tyre there?

You certainly wouldn't run 'winter' tyres in October there, for example - the mean is 29C - but you could happily run 'winter' tyres in the UK in October. Then again, you could happily run 'summer' tyres in October, too, with average lows of 7C and maximum 14C...

   they wont sell all season tyres or winters in the first place!