snippage
If it does make such a difference then good on the companies for supplying we the consumer with that product.
What ARE you talking about? The tyre companies, BY LAW, have to provide tyres which comply with EITHER the standard load index for that particular size, OR the extra load, OR both load indexes. These tyre companies are NOT somehow doing us 'a favour' !!!!
Thanks for the detailed response TT. Won't go through it all as we are starting to repeat ourselves (and aren't going to agree on some things).
Just on this one though as I'm not sure I understand your point...
The 91 load rating for the 17"s is legal (as shown by the fact that OEM tyres have that rating). That is the tyre Michelin have chosen to make in this size. Fair enough too.
Some other brands have chosen make a 94 rating instead of or in addition to. Also fair enough.
All are legal on the GTI.
If a 94 rating brand A tyre performs better on the GTI than a brand B tyre that only comes in a 91 rating (FOR THIS SIZE) then what should I do?
Buy the brand B even though it has been outperformed? Could do as I'm sure they are a good tyre that I'll be happy with
Upgrade to an 18" wheel just so I can buy the brand B in a higher rating? Sounds a bit expensive when we don't know for sure how the brands compare in this size (and personally I want to keep 45 series tyres as they offer just that little bit more sidewall to cope with the terrible roads here in OZ)
or...
just buy the brand A tyre?
I do agree with you that people on 18"s shouldn't assume the results will follow exactly the same.