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ashvdub

quick tyre profile question

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185/55 is the lower profile, as the 55 is a percentage of the tread width...

 

Though 195/50 will be the same as 185/55 and cheaper I suspect...

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Yup, they tyre's profile is expressed as a percentage of the tread width, so if you have two tyres with a 55-profile, but one is narrower tread width, then the profile will also be smaller...

 

I'm sure I've mentioned this before somewhere...!

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Nothing to do with stretch at all!

 

The sidewall profile of a 185/55 tyre will be 55% of 185mm, which equals 101.75mm.

 

The sidewall profile of a 195/55 tyre will be 55% of 195mm, which equals 107.25mm.

 

Therefore, the 185/55 has a lower profile sidewall - simple!

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ta, never realised it was a percentage, just thought they were random numbers :roll:

will I be able to stretch 185/55/15's on 7" easy enough? Got some in my shed, so it'll save buying new ones seeing's as i'm searchin for new wheels anyway.

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Yeah, they will go on ok, would go for 195/50's myself tho, will give you a bit of extra grip on the road, only 10mm but every bit helps

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Can I tag another question onto this 'quick .. .. question' thread??

 

I've always put on 205/50/15 and have never had anyone advise me differently. Could I put on 195/55/15 or 185/55/15 and what difference would they make?

 

And if I can, how come? Don't they have to fit the width of the wheel or is a range of 20 negligible!

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Butterfly, The over all diameter off your wheels would be different which would mean your speedo would be out, otherwise you can put what you like on - i wouldn't go any bigger though

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