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**Unofficial Tyre Thread**

mjt said:
Solution to tyrewall bulge:
4x very lightly used (a few very light scratches on 2 wheels) 740M with brand new (week 31 2026) Goodyear UltraGrip Performance 3s (top rated recently on tyrereviews) for half the price BMW wanted for a set of 4 with some crappy run-flat winters.

I'll figure out what to do with the 22s in the spring. If i like the 740Ms, I might just get another set and sell the 22s as the ride isn't great and spending £300 every time I hit a bump in the road will bankrupt me.

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Massive wheels on an SUV always makes me shake my head. You did the right thing.
 
Just ordered some Conti All Season Contact 2 tyres.

Looking forward to getting them fitted and seeing how the Mrs enjoys them on the drive up to NE Scotland in a few weeks time.

These in a 50 profile on the 19s should make the ride into a magic carpet compared to the 35 profile summers on the 21s.
 
Had the Kumho Sport S fitted on all corners at the weekend. Have done 150miles so far and quite happy with it.
Came from 3 and 4 year old ps71s and just glad to have something that gives me more confidence
 
It should be relatively easy to have some sort of standardised and controlled methodology for comparing tyres. How reliable can those printed ratings (wet, economy, noise) be if they are self reported?
 
Problem is as well set benchmarks don't really tell you the full story - a tyre which on paper can stop you in say 30m in the wet from a certain speed vs a tyre which takes 32m to stop you in the wet from the same speed the first one might sound better but in reality in most real world scenarios the second tyre might have much better controlled braking under those conditions in circumstances where you aren't controlling/setting all the variables.
 
Rroff said:
in reality in most real world scenarios the second tyre might have much better controlled braking under those conditions in circumstances where you aren't controlling/setting all the variables.
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I'm struggling to wrap my head around what you're saying here - why would the second tyre have better controlled braking in most real world scenarios?
 
Kenai said:
I'm struggling to wrap my head around what you're saying here - why would the second tyre have better controlled braking in most real world scenarios?
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Some tyres will stop very well in a straight line on a smooth/regular surface, but if you aren't travelling in a straight line and/or mixed surface conditions another tyre might have much better stability and accommodate input corrections, etc. better as you come to a stop (or even just reducing speed rather than fully coming to a stop).

Full on emergency stops are far less usual than moderate to hard braking and the performance of different tyres can vary between what they do in a synthetic test and typical real world braking scenarios.
 
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Rroff said:
Some tyres will stop very well in a straight line on a smooth/regular surface, but if you aren't travelling in a straight line and/or mixed surface conditions another tyre might have much better stability and accommodate input corrections, etc. better as you come to a stop.
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The bit i'm not getting is why you think the second tyre would necessarily be better in 'most' real world scenarios though, rather than 'could be better in some specific circumstances' - why does poorer on paper performance translate into better real world performance in 'most' scenarios?
 
Kenai said:
The bit i'm not getting is why you think the second tyre would necessarily be better in 'most' real world scenarios though, rather than 'could be better in some specific circumstances' - why does poorer on paper performance translate into better real world performance in 'most' scenarios?
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Some tyres will handle input corrections, etc. much better than others despite not necessarily being able to stop quite as quickly - which can be just as if not more important in avoiding an incident especially in inclement conditions - an exaggerated example but one tyre might stop you in 30m with the wheel held straight but the moment you add a little input it might become highly unstable while another tyre might bring you to a stop in 32m but handle a little input in a controlled fashion (while you can somewhat interpret that where a reviewer includes wet lap times in their testing that is another story).
 
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Rroff said:
Some tyres will handle input corrections, etc. much better than others despite not necessarily being able to stop quite as quickly - which can be just as if not more important in avoiding an incident especially in inclement conditions - an exaggerated example but one tyre might stop you in 30m with the wheel held straight but the moment you add a little input it might become highly unstable while another tyre might bring you to a stop in 32m but handle a little input in a controlled fashion.
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That isn't explaining how you're concluding that the second tyre will be better in 'most' real world scenarios though, I can't see how you're making that leap.

It's just as possible (and I would argue significantly more likely) that the better tyre on paper is also the better tyre in 'most' real world scenarios too, even if not all of them.
 
I must admit, after trying Pilot Sport 4's , Bridgestone Turanza 6, and Toyo Proxes 2, I can't really tell a massive difference in any of them. I guess....... PS4's got a very slight edge in wet but then they suck when it gets cold like below 4c.

Bridgestone's were dodgy in the wear in period, I mean I know you need to take it easy but those in particular I really noticed it, they were fine after a little while.

I tried Kumho in the past, were good enough I suppose, but I find the above 3 are a slight step up.

Landsail below all of those.

Anyway, basically with the cost of tyres these days, I'm not sure it's worth going absolute top end premium, the top end of mid range seem fine to me.
 
Kenai said:
That isn't explaining how you're concluding that the second tyre will be better in 'most' real world scenarios though, I can't see how you're making that leap.

It's just as possible (and I would argue significantly more likely) that the better tyre on paper is also the better tyre in 'most' real world scenarios too, even if not all of them.
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You rarely do a full on emergency stop with the wheel held straight on a regular surface in the real world and especially in wet conditions it becomes important how a tyre handles when you need some finesse at the wheel to safely accommodate a situation - which can be a very different story to which tyre stops you the quickest in a synthetic test.

I've driven on tyres which rate very highly in this respect but in reality are far from the greatest if you need to brake hard in the wet on a corner on a not great B road while other slightly less highly rated tyres are far more compliant in those situations.
 
Rroff said:
Some tyres will handle input corrections, etc. much better than others despite not necessarily being able to stop quite as quickly - which can be just as if not more important in avoiding an incident especially in inclement conditions - an exaggerated example but one tyre might stop you in 30m with the wheel held straight but the moment you add a little input it might become highly unstable while another tyre might bring you to a stop in 32m but handle a little input in a controlled fashion (while you can somewhat interpret that where a reviewer includes wet lap times in their testing that is another story).
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You can replicate that scenario under controlled conditions if necessary. It will just mean adding another rating.
 
Rroff said:
You rarely do a full on emergency stop with the wheel held straight on a regular surface in the real world and especially in wet conditions it becomes important how a tyre handles when you need some finesse at the wheel to safely accommodate a situation - which can be a very different story to which tyre stops you the quickest in a synthetic test.
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Don't disagree with any of that but still doesn't explain why the second tyre in your example performs better than the first tyre in most real world scenarios.
 
BUDFORCE said:
Bridgestone's were dodgy in the wear in period, I mean I know you need to take it easy but those in particular I really noticed it, they were fine after a little while.
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I haven't tried the regular 6 yet but the Bridgestone Turanza 6 All Seasons I have took around 200-300 miles, the t005 also took a little while to "wear in". I dunno about the regular 6 but the t005 handle cold temperatures surprisingly well with little change to the performance or feel until you are much closer to zero than many other tyres I've used, sadly the t005 is a bit tragic on snow though does OK with light ice.
 
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