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Thread: Tyre Speed rating

  1. #1
    Regular Member GoldenWonder's Avatar
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    Default Tyre Speed rating

    Can anyone tell me (or tell me where to find) the correct speed rating for my cars tyres? Its a 2004 1.9 CDTi 120, and its got W's on the back and for some reason Y's on the front (thats 186mph rating!)

    I'm about to order some more and Camskill have some good prices but want to check the right rating.

  2. #2
    Regular Member VectraV6CDTi's Avatar
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    Handbook?

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    Regular Member GoldenWonder's Avatar
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    I might be missing it, but I can only find size and inflation details in the handbook?

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    Regular Member m8internet's Avatar
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    Speed ratings aren't in the handbook
    Most of the Vectra require at least W rated tyres
    Basically, you take the top speed and add 15%, and that gives you the speed rating you require

  5. #5
    Regular Member GoldenWonder's Avatar
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    Local tyre place said he 'thinks' its V, but W's are often cheaper!

    Top speed eh? So that 90mph plus 15%....

    Now even more confused, HiQ online claim W or H!

    H is a pram wheel rating!
    Last edited by GoldenWonder; 5th July 2008 at 12:19.

  6. #6
    Full Member Big Sig's Avatar
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    Put W's or Y's on, either will be fine
    Now I need a turbo to keep up!

  7. #7
    Regular Member m8internet's Avatar
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    There are two different 1.9 CDTI engines, so the maximum speed will be between 121 and 135 mph depending on engine and body type
    From that it looks like W rated tyres will be the minimum spec
    The minimum load rating is 91

  8. #8
    Regular Member GoldenWonder's Avatar
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    Cheers for the info.

    Local tyre place has W rated Kuhmos for £130 a pair which seems reasonable. About the same cost as getting a pair of Toyos from Camskill and getting someone to fit them.

  9. #9
    Full Member Big Sig's Avatar
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    Make sure they are 91W as a local place to me fitted 88W's to my 3.0 CDTi..... numptys
    Now I need a turbo to keep up!

  10. #10
    Regular Member john_k_sri's Avatar
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    Vehicle : Vectra

    Trim : SRI NAV XP

    Engine : 1.9 CDTI 150

    Year : 2007

    Mileage : 72K

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    Quote Originally Posted by m8internet View Post
    Speed ratings aren't in the handbook
    Most of the Vectra require at least W rated tyres
    Basically, you take the top speed and add 15%, and that gives you the speed rating you require
    I have 'V' rated tyres on the front of mine with a speed rating of 149mph, which is way beyond my likely top speed when I am driving, and beyond the published top speed of my car. I believe I have more than enough 'headroom' and see no reason to replace 2 perfectly good tyres just to match in speed rating terms what was originally fitted to the car.

    IMO, in 'real world' terms, 'T' and 'H' rated tyres are the only ones which could cause a problem, unless you are regularly tempted to take your car to the limit and beyond.

    For most people tyre maintenance and condition is far more important.

    VX do not actually specify a minimum 'W' rating but do provide a table of ratings in the User Manual. As long as you refer to that with a modicum of common sense, there should not be a problem.

    A supervisor at a dealer's told me that quality of tyres is more of an issue, so for example, if you have 'W' rated tyres fitted, don't fit cheap ones, as they will not grip as well as those that were originally fitted to the car.

    Any dealer or reseller, such as a car supermarket is being utterly irresponsible in fitting 'H' or 'T' rated tyres on any Vectra.

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