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Thread: Upgrading to 225 45 r17????

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    Default Upgrading to 225 45 r17????

    I'm running 215 50 r17 on my 2007 SRi but noticed that the prices of replacements are high.

    I'm considering 225 45 r17's but do they look right on the car and do they leave a larger wheel arch gap making the wheels look too small for the car?

    Are there any performance advantages or disadvantages to changing to 225 45 r17's.

    If anyone has pics of 225 45 17's on thier car i would love to see them.

    Your advice would be greatly appreciated as always!!

    Cheers.

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    Regular Member hutch's Avatar
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    same size mate. will look the same

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    Regular Member m8internet's Avatar
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    Quote Originally Posted by hutch View Post
    same size mate. will look the same
    No they are not, they are slightly skinnier, I posted previous photos in 2006 comparing 215/50R17 and 225/45R17

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    Regular Member neilybhoy1888's Avatar
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    the 225 is a smaller tyre mate it does make the wheel arch look smaller but to be honest the only one who will notice is fello vec owners and the cheaper prices is worth it

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    Regular Member DurhamRed's Avatar
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    Vehicle : Vectra SRi


    Engine : 1.8VVTi

    Year : 2006

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    Does it affect the speedo readings? I would of thought the speedo wont be as accurate and will read faster than actual true speed.

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    Regular Member Derek Mc's Avatar
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    It alters the speed reading 2.06% and fuel economy likewise will be fractionally reduced as the rolling radius is shorter than a 215/50
    But, it is a recommended Vx size I would add.

    I had them and went back to 215's personally

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    Quote Originally Posted by DurhamRed View Post
    Does it affect the speedo readings? I would of thought the speedo wont be as accurate and will read faster than actual true speed.
    the 225-45 is slightly smaller, your 215-50-17 are 79.8 in circumfrence

    your 225-45-17 are 78.5in,
    acording the chart I use your speedo will be 1.6% to fast, so 60 mph will be 59 mph, so nothing to worry about

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    Regular Member rushy's Avatar
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    You wont notice the size difference mate. The profile isn't the side wall height but a percentage of the width, and as the 225 is wider...........

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    Thanks for all the replies, much appreciated!
    I think I will go for the 225/45/17's as there is a much wider choice of tyres which are massively cheaper. With this size of tyre I can buy quality tyres like dunlop sp's for the same price as a budget 'ditch finder' tyre in the original size.
    I would like to see pictures of the 225's on the vectra if anyone has got some.
    Many thanks.

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    Vehicle : Vauxhall Astra-J

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    I was initially contemplating the Dunlop SPs but someone on here said they didn't last very long.

    I finally settled for Uniroyal Rainsport 2's. Best tyres I've ever had on a car.

    I ended up paying less than the Dunlops would have cost as well.

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