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Discussion Starter · #1 ·
Hi last year I bought a second space saver wheel for my optima 65 plate. The car was supplied with one but the price was right and just in case !!
Now with a new car in sight I looked at the extra wheel prior to selling and noticed that it was a 17" tyre, I then checked the fitted spare and it to was 17",

This surprised me as the car has 18" wheels and I have used my spare and my friend his on his optima. Am I missing a point here and is it OK to use a 17" spare on a car fitted with 18" tyres

Thanks

Jim
 

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Spacesaver wheels have higher profile tyres than std ones on car.

Put tyre sizes in this site & you will find that the rolling radius is approx the same.

 
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