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[TheBoy]

I think, quite frankly, we're at a place where "find something that works, and stick with it". Until the tyre manufacturer stops producing, then start again 

[TheBoy]

But I would add, removing the too big 245 45 18 fronts (that did not tramline) and fitting the matching to the rears diameter 235 45 18 (that do tramline)

Sorry to quote out of context, but what were load and speed ratings?

[feeutfo]

I can check the mo, but the current tyres are listed in the pics.

Can I direct the honourable member to post 1 page 1?

[TheBoy]

I can check the mo, but the current tyres are listed in the pics.

Can I direct the honourable member to post 1 page 1?

Not mentioned AFAICS.

I ask, as some sizes of MO, when I was looking, were not available with load rating of 93 (or higher), as specified by GM. Certainly the size I was after was only available in MO with a rating of 91.

[feeutfo]

I can check the mo, but the current tyres are listed in the pics.

Can I direct the honourable member to post 1 page 1?

Not mentioned AFAICS.

I ask, as some sizes of MO, when I was looking, were not available with load rating of 93 (or higher), as specified by GM. Certainly the size I was after was only available in MO with a rating of 91.

mo 93y, what size did you look under...?

[TheBoy]

I can check the mo, but the current tyres are listed in the pics.

Can I direct the honourable member to post 1 page 1?

Not mentioned AFAICS.

I ask, as some sizes of MO, when I was looking, were not available with load rating of 93 (or higher), as specified by GM. Certainly the size I was after was only available in MO with a rating of 91.

mo 93y, what size did you look under...?

235/40/18

[feeutfo]

I can check the mo, but the current tyres are listed in the pics.

Can I direct the honourable member to post 1 page 1?

Not mentioned AFAICS.

I ask, as some sizes of MO, when I was looking, were not available with load rating of 93 (or higher), as specified by GM. Certainly the size I was after was only available in MO with a rating of 91.

mo 93y, what size did you look under...?

235/40/18

thats not the size mo i had, probably why.

[feeutfo]

so what are we looking at for load rating TB?

iirc those Falkens where 95y which where awfull for tramlining, yet they where a higher load rating and narrower( in standard size) than mo by some way

[2woody]

Every Omega (standard) I've driven hard, with the exception of TDs, have a tendency to understeer in fast bends - something I've managed to dial out of the MV6. I see that wider rears will only make that worse. IMHO only, of course.

Not necessarily. Even in tyres of the same make, the amount of stretch in the tyre to meet the wheel greatly affects the grip available. Tyres with a lot of stretch ( think "Euro style" ) have very little flex available. This is going to affect the understeer gradient.

[2woody]

Back on topic please.

I don't really buy 2woodys list of age, compound, etc. when it's only straight line handling we are talking about. (obviously these affect other areas, fair do's)

I'm sorry Chris - it may be my fault for not putting it right. The "other things" above are really much more influential on all aspects of the tyres performance in all conditions - even for tramlining.

[feeutfo]

want a list ? so there's rubber hardness, security of bonding, tread pattern, age of tyre, rubber additives - all of which have much more influence on a tyre's behaviour than the carcass construction.

Sorry been lazy and copied the above from your post 2woody.
So we have;
Rubber hardness. I would have thought the same between mo and o1 but could well be different. Cirtainly it doesn't seem to lack grip between one or the other.

Security of bonding. Ok, don't much about that.

Tread pattern. Exactly the same between mo and o1. Both are sc3

Age of tyres. The worse tramlining o1 is at least two years younger by purchase date. The date stamps on both are a couple of months prior to that, and are the same per axle set. So the dates don't imply any oddity there. Both where purchased from the same wear house that has no windows, so no sunlight killing the compound. They have a massive turnaround of tyres anyway. They would not be on the shelf long.

Rubber additives. Trade secret I'm guessing?

[feeutfo]

In addition,
Load rating
Extra load on the 01 which tramlines
93y on the mo which doesn't.

Construction label
Sidewall 2ply rayon on the o1 extra load ...tramlines
Sidewall 1ply rayon on the mo 93y ....doesn't.

I thought the sidewall material was different, on checking the pictures it's not. I guess that's what happens when reading the label upside down.

Speed rating
Same.


What rating is extra load? Compared to 93y.

[feeutfo]

Oh, and I never answered Kevs post earlier.
On a scale of 1-10, 

10 being worsened with Falkens.
( You remember driving with two of those fitted. And i'm sure TB remembers driving with all 4 fitted )
.
.8 TB's totals cabbaged clown car michelins,here
.
.
.
4 the current sc3 o1 Audi variant is about here
3 or maybe here
.
1 best for not tramling being mo sc3

So not a massive issue. But it's bloody annoying having coffee up for them.

[TheBoy]

Oh, and I never answered Kevs post earlier.
On a scale of 1-10, 

10 being worsened with Falkens.
( You remember driving with two of those fitted. And i'm sure TB remembers driving with all 4 fitted )
.
.8 TB's totals cabbaged clown car michelins,here
.
.
.
4 the current sc3 o1 Audi variant is about here
3 or maybe here
.
1 best for not tramling being mo sc3

So not a massive issue. But it's bloody annoying having coffee up for them.

The SC5s are coming in around a 9....

[TheBoy]

Rubber hardness. I would have thought the same between mo and o1 but could well be different. Cirtainly it doesn't seem to lack grip between one or the other.

I would hazard, with all other things equal (size/speed etc), the compound would be the primary difference between the different manufacturer options.