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Thread: Changing wheel sizes, how do I know what the correct tyre rating should be?

  1. #1
    Regular Member Paulwr's Avatar
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    Vehicle : Astra H 1.8 VVT

    Trim : SRi XP 3dr

    Engine : Z18XER

    Year : 2009

    Mileage : 12k

    Default Changing wheel sizes, how do I know what the correct tyre rating should be?

    Hi

    My 2.2i Direct face lift Vec C SRi is currently running stock 17 inch wheels with 215/50 rubber.

    I have the chance to upgrade to 18" wheels.

    If I upgrade I want to run 225/45 on the 18" inch rims but how do I find out what the correct speed and load rating should be?

    Thanx.

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    Regular Member rockafella8587's Avatar
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    Not too sure about the load rating but a Y speed rating should be sufficent. My stock 17's have 225/45 tyres on them

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    i think load rate of 91 or more should be fine on that model ,

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    Regular Member m8internet's Avatar
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    You could avoid that hassle and simply look at the XL tyre for that size
    From memory this is what VX fit anyway for 18" and 19" tyres

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