255/45/17 Style 32

O

orfanidis360

Member
 Greece
Can you guys tell me if 255/45/17 tyres fit at my rear wheels?

WHEEL STYLE 32 ET34 SIZE 8X17

I've currently fitted 245/45/17 tyres. Will 255 be a problem ?
 
255 will fit on 8j but not ideal :? will be on the verge of looking "balloony" & may be unwise to press on in the bends with them
 
mr wilks said:
255 will fit on 8j but not ideal :? will be on the verge of looking "balloony" & may be unwise to press on in the bends with them
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Will make handling worse? Front are 225/45/17
Found a set of Bridgestone Expedia S01 at a really good price!
 
So you're currently on 245 45 rears/225 45 fronts ?
Assuming the alloys are staggered widths you should really be either 50 front & 45 rear or 45 front & 40 rear to keep rolling circumference same
 
mr wilks said:
So you're currently on 245 45 rears/225 45 fronts ?
Assuming the alloys are staggered widths you should really be either 50 front & 45 rear or 45 front & 40 rear to keep rolling circumference same
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Yeap that's what I'm currently!

I know BMW gives 5-point difference on the tyre height between the rear and the front. For example on my 18 wheels it used to be 225/40 & 255/35.
I actually chose 45 tyre height on my 17'' to get even more soft feeling and absorption on the back since our greek roads are way too bumpy.
Haven't noticed any imbalance so far.
Don't you think 225/50/17 on the front will be too much for the Z?
Found BRIDGESTONE POTENZA RE050A 225-50-17 at great price.

Small tyre height in Greece results in a definite wheel crack. Talking about Genuine wheels always! 8)
 
Hey im all for upsizing profiles to gain a better ride , 50s on 17s really shouldn't be a problem & as you have found sticking to the same 45 back & front does no harm either , im currently running 255 35 19 rears / 235 35 19 fronts & car handles great + speedo checked on TomTom is almost on the nail :thumbsup:
 
mr wilks said:
Hey im all for upsizing profiles to gain a better ride , 50s on 17s really shouldn't be a problem & as you have found sticking to the same 45 back & front does no harm either , im currently running 255 35 19 rears / 235 35 19 fronts & car handles great + speedo checked on TomTom is almost on the nail :thumbsup:
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Wow sounds stiff for the Zed.. :dizzy: :dizzy:
 
Ordered them today.
Bridgestone slighty used at low price.
225/50 for the front and 255/45 for the rear.
Let's see how 17 wheels suit with such dimensions on the E85.
 
225/50/17 front do not fit. They touch the wheel housings.
255/45/17 rear do fit, but had to remove my 1mm H&R wheel spacers.

So I'm currently on 225/45 front and 255/45 rear. Below the results.

DSC_0057_zpsw5bl2qus.jpg

DSC_0063_zps95eym0zj.jpg

DSC_0055_zpsumg8u3zm.jpg

DSC_0059_zpsqfx7isto.jpg

DSC_0058_zps90mwt8ha.jpg

DSC_0056_zpsbse6gxmb.jpg
 
mr wilks said:
225 50 17 will fit on OEM Z4 17inch offsets et42 to et50 , lowered springs with et 34 is causing the rub
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Haven't got lowered springs. The car is just how it came wih the m-sport suspension.
 
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