impossible tyre question

[crazyjim]

I cannot find the answer to this...…

I currently have 235/65/17 tyres going bald

will 255/65/17 tyres fit on my wheels instead??? loads of these for sale near me locally at really good prices.

Im not modifying wheel arches or doing suspension lifts.

 

[don simon]

I cannot find the answer to this...…

I currently have 235/65/17 tyres going bald

will 255/65/17 tyres fit on my wheels instead??? loads of these for sale near me locally at really good prices.

Im not modifying wheel arches or doing suspension lifts.

Have a look on here https://tiresize.com/tyre-size-calculator/ the first thing to look at whether the diameter will fit in the arch aperture, then look at the width and hazard a guess whether they'll catch anything.
Someone who's fitted larger will be along with experience.

I've got a set of 4 Cooper Discoverer AT/3 235/65/17 that I'd be happy to part with for the correct money.

 

[crazyjim]

Cheers.
Only thing is I'm in Scotland. Postage of your tyres would be a lot

 

[macabethiel]

I cannot find the answer to this...…

I currently have 235/65/17 tyres going bald

will 255/65/17 tyres fit on my wheels instead??? loads of these for sale near me locally at really good prices.

Im not modifying wheel arches or doing suspension lifts.

In my experience it depends on the rim width you have, if you exceed the manufacturers normal width then you can end up with a lot of sidewall give & the danger of the rim seal being lost during extreme cornering.

I made this mistake a few years ago on a Vauxhall Astra I went oversize and the sidewall give made the steering that was rack & pinion just awful (really floaty) though the ride was more comfortable.

If you ring a reliable tyre retailer they will tell you the maximum width for a given rim width & wheel diameter.

My 8JJ x 18" rims were fitted with 225/40 R18 tyres but I can go as wide as 245/40 x18" but the recommended is 235/40 x 18".

 

[elty001]

I think you might just get away with it.
A 255 /65/17 is about 10" wide with 65% of that which is the tyre wall height at 6.5".

The standard size is 9.2"wide with a side wall height of 5.9".
So 1" wider and 1.5" on the diameter.

 

[russell.huffer]

I have always found this tyre program to be the most useful for making choices like this

http://www.rimsntires.com/specspro.jsp

in this case it says 10mm to 13 mm bigger

Kind regards

Russell