tyre widths

[fla 9]

Does anyone have any Kumho KU31 fitted? if so, would you mind measuring the tyre width assuming its either a 195/40/17 or 205/40/17? Many thanks. Hopefully need to get a pair for the rear of teh car as i'm getting some arch rubbing after lowering recently.

[mimjed 0]

im confused?

 

a 195 tyre will be 195 wide and a 205 tyre will be 205 wide

 

what do you mean?

 

stretch may help, this can often help to reduce rubbing. also spacers, depends where its rubbing though. failing that your looking at rolling the arches.

[fla 9]

usually the width is pretty generic - 205 can actually be 210 or 212 even, sometimes the other way too ie 201 or even 200. Same for 195, hence the question.

[mimjed 0]

fair cop. id presume they would have to fall within a set tolerance though.

 

+ or - 5mm? otherwise they arent what they say on the tin.

[fla 9]

you're probably right, there should be *some* tolerance otherwise what's the point in specifying a tyre size.

On a positive note, just had the car tracked up and camber adjusted and it has made a HUGE difference to ride quality and stability, perhaps the shocks and sprinigs are settling in a bit now. The rears only rub on severe undulation in the road, but generally they're absolutely clear. When the tyres need replacing, i'll get some Kumhos (cheers Zak).

BUT if anyone can measure their tyre width it would still be appreciated!

[mattnorgrove 0]

You'll need 205/40/17 to keep the rolling radius as close to standard as possible.

 

195/40/17's will give a smaller rolling radius, and cause your speedo/odometer to read incorrectly.

[mimjed 0]

Again doesnt make sense to me.

 

Profile is the same so makes no difference to speedo.

[mattnorgrove 0]

The profile is a percentage of the tyre width mate, so does make a difference to rolling radius. Compare the two together, the difference is obvious.

 

Have a look here to compare...

 

http://www.tyresave.co.uk/tyresize.html

[Abdul 0]

Has... bro... WE NEED PICS!!

[MarkFoster 0]

You'll need 205/40/17 to keep the rolling radius as close to standard as possible.

 

195/40/17's will give a smaller rolling radius, and cause your speedo/odometer to read incorrectly.

 

 

Depends on rim width though - on a 7.5J rim the 195 40 17 radius is closer to the standard 205 50 15...

[mattnorgrove 0]

You'll need 205/40/17 to keep the rolling radius as close to standard as possible.

 

195/40/17's will give a smaller rolling radius, and cause your speedo/odometer to read incorrectly.

 

 

Depends on rim width though - on a 7.5J rim the 195 40 17 radius is closer to the standard 205 50 15...

 

:dorky: :lol:

[MarkFoster 0]

:lol: