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Old 07-29-2013, 05:08 PM   #1
Hywel_P
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Will 10mm extra diameter damage my car???

Hi there people, I am new to the forum! :)

Hi have recently purchased ST wheels off a 170 which have are 17" alloys with 215/45R17 Tyres.

My current Focus Ebony 1.6 has 195/60R15 Tyres.

The difference in diameter is 10mm extra tyre on the ST ones. That's all. There is a 1.67% difference in diameter between them. There offset will move 7mm closer in and 13mm outward.

Are these ST wheels suitable for my car do you reckon without doing damage to the Transmission, differential etc. The tyre garage who I asked to fit the wheels for me said to ask the ford dealer before doing it, but they swouldn't say yes or no for liability reasons.

What do you guys think. I would rather a healthy car than one that looks a bit better

Many Thanks

Hywel


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Old 07-29-2013, 05:10 PM   #2
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It will not damage your car.
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Old 07-29-2013, 05:23 PM   #3
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Originally Posted by Gi_Jo_Nathan View Post
It will not damage your car.
Thanks for your reply. Do you know from doing this yourself etc
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Old 07-29-2013, 05:31 PM   #4
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Quote:
Originally Posted by Hywel_P View Post
Thanks for your reply. Do you know from doing this yourself etc
Yep. I've run other than stock sized tires on every vehicle I've ever owned. The only time you can run into an issue, is if you run different sizes, on the same axle, at the same time.
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Old 07-29-2013, 05:42 PM   #5
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Quote:
Originally Posted by Gi_Jo_Nathan View Post
Yep. I've run other than stock sized tires on every vehicle I've ever owned. The only time you can run into an issue, is if you run different sizes, on the same axle, at the same time.
Right okay. The garage were saying that it could mess with the diff and gearbox because the car will be under more strain. Is this true with a 10mm differencw?

Have you done upgrades to a 1.6 focus?

Thanks btw
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Old 07-29-2013, 06:35 PM   #6
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Never even driven one.

But if you wanted to get picky, you could say the car would also last longer, because all of the rotating parts will be spinning slower..
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Old 07-30-2013, 02:08 PM   #7
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Not an issue.
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Old 07-30-2013, 02:50 PM   #8
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Has anyome done rhis to a 1.6 focus though?? Thanks so far
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Old 07-30-2013, 03:28 PM   #9
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You'll have more than a 10mm diameter difference between a new tire and a worn out tire.................
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Old 07-30-2013, 04:03 PM   #10
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You'll have more than a 10mm diameter difference between a new tire and a worn out tire.................
qft

you don't have anything to worry about.
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