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Thread: Quick Tyre Question

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    Regular Member Maverick's Avatar
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    Default Quick Tyre Question

    My 19" Tyres (Avon ZZ3) have 91 load rating tyres.

    The 224 45 18" Avons have 95 load rating.

    Is this better or worse? Should I be OK with them?

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    Don't know about better or worse - a 95 is rated to carry a heavier load that a 91. Covered here - http://www.blackcircles.com/general/sidewall

    95 tyres will give a firmer ride that 91's because the sidewalls are stiffer to carry the extra load. I've just got 4 Kumho KU31's which are 95 rated and the ride is noticably firmer than on the old 91's that I had before - which is a good thing with the standard suspension on a Vectra (and doubly so with non-bucket leather seats).
    Last edited by James24; 23rd November 2009 at 23:17. Reason: karnt spel

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    Regular Member Maverick's Avatar
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    Thanks James! Should be softer than my 235 35 19's though!

    As Vectra/Signum suffer the usual rear tyre inner edge premature wear, I wonder if 95's will stand up to this better?

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    Regular Member m8internet's Avatar
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    Have a look at the 91 and 95 rated tyres, look for "Extra Load", "XL", or "Reinforced"
    Also compare the number of structure layers
    You should find that the 91 tyres are standard and have more structure layers, the 95 tyres should be XL and have fewer structure layers

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    On a Sabbatical daviek's Avatar
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    Quote Originally Posted by m8internet View Post
    Have a look at the 91 and 95 rated tyres, look for "Extra Load", "XL", or "Reinforced"
    Also compare the number of structure layers
    You should find that the 91 tyres are standard and have more structure layers, the 95 tyres should be XL and have fewer structure layers
    The 91's are XL too and as for having less structured layers , not true buddy . Its the steel inside the tyre that is strengthened not the rubber

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    Regular Member PAULMAC77's Avatar
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    was goin to say ive just bought kuhmo ku31's and mine are 91y xl, u sure your kuhmo's are 95?? mine are 235 35 19's thos so if yours are different size then fair enuff lol

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    On a Sabbatical daviek's Avatar
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    The 18's will have a higher load index due to the fact that it has a smaller tread area and the weight doesnt get spread across as much as the 19's

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    Regular Member Graham's Avatar
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    Quote Originally Posted by Maverick View Post

    As Vectra/Signum suffer the usual rear tyre inner edge premature wear, I wonder if 95's will stand up to this better?
    I have 94 xl on my Vec, my rears lasted 41k Michelin primacy 225/45/17 but it was only the fact that the inner edges had worn down to the limit that i had to replace them.
    The remaining tyre had 3.00mm left so could off got a few thousand more miles had they not worn on the inner edge.

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    Quote Originally Posted by PAULMAC77 View Post
    was goin to say ive just bought kuhmo ku31's and mine are 91y xl, u sure your kuhmo's are 95?? mine are 235 35 19's thos so if yours are different size then fair enuff lol
    My tyres are the standard 17" size - 215/50R17. They're definitely 95W - you got me a bit worried there so I checked on the Kumho website which says they are KU31 95 W. ttp://www.kumhotyre.co.uk/tyre_selector.php


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    Quote Originally Posted by Maverick View Post
    Thanks James! Should be softer than my 235 35 19's though!

    As Vectra/Signum suffer the usual rear tyre inner edge premature wear, I wonder if 95's will stand up to this better?
    I don't know what the wear is like yet. The fronts have only just gone on. The rears have been on over a year and look to be wearing evenly so far as I can see.

    I don't do may miles these days though - the rears have worn just enough for 'Ecsta' that's written around the middle of the tread to have worn off.

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