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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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jimbo1958
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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Post by jimbo1958 » Thu May 18, 2017 6:51 pm

I'm running
Rear 265/30
Front 235/35
Z4 e85 3.0 - GONE
Z4 e89 35i - GONE
Jaguar F Type V6s Roadster :driving:
Abarth 695 Rivale :driving:

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StanM
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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Post by StanM » Thu Jul 06, 2017 5:19 pm

jimbo1958 wrote: Thu May 18, 2017 6:51 pm I'm running
Rear 265/30
Front 235/35
Any photos from any of the sides? :thumbsup:

I now need new tyres very soon as I am on 4mm and was just about to purchase the 265/35R19 and 235/40R19 today but still not sure about rubbing. Car clearance will be around 15mm higher and the arch gap will be 15mm shorter so on paper it should work.

With the size you've got I'll have around 3mm more clearance and 3mm less arch gap compared to my current setup 255/30 rear and 225/35 front.
2011 E89 sDrive23i M Sport Highline Edition, Alpine White, Coral Red Leather, 326M, Stubby

2004 E85 2.5i
2001 E46 320Ci
2000 E36/7 2.0i

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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Post by eff1guy » Thu Jan 11, 2018 11:59 pm

StanM wrote: Sat Apr 08, 2017 7:01 pm For now I think I'll go with 265 tyre width but will try to get more info on the possible 35/40 or 30/35 aspect ratios. If I get 35/35 looks like there will be 10mm difference in rolling radius between front and back and I still need to learn what that means :headbang:
Did you find out what the difference means?

OEM sizes of 225/35/19 and 255/30/19 give a 14mm difference in circumference front to back, I'm about to hit the button on 235/35/19 fronts and 255/35/19 rears on OEM 326m's as per recommendations on here but that gives a difference of 44mm in circumference front to back! :?
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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Post by mr wilks » Fri Jan 12, 2018 10:59 am

Bear in mind 326s are 8j front & 9j rear.
Ideally 225 35 19 works well on the fronts . I tried 225 40 19 on previous e89 & had very minor rubbing when pressing on :oops:
265 on rear 9j ? 245 or 255 is ideal width so if you must go 265 then go 30 profile .
I had 255 35 on my 326s & for me it's the best all round fitment for comfort + wheel protection.
3 ZMRs
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997 C4
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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Post by eff1guy » Fri Jan 12, 2018 2:55 pm

mr wilks wrote: Fri Jan 12, 2018 10:59 am Ideally 225 35 19 works well on the fronts . I tried 225 40 19 on previous e89 & had very minor rubbing when pressing on :oops:
265 on rear 9j ? 245 or 255 is ideal width so if you must go 265 then go 30 profile .
I had 255 35 on my 326s & for me it's the best all round fitment for comfort + wheel protection.
I had thought the consensus was to step up to 235/35/19 Front and 255/35 Rear on the 326's when moving away from the RFT's? Now I'm just worried that
A) I've got the sizes wrong? and
B) The big difference in overall circumference front to back, or doesn't this matter? :?
Next Z landed ..... Z3 3.0i Sport Roadster

Z4 35iS ..... Gone to a new home

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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Post by kis » Fri Jan 12, 2018 3:09 pm

eff1guy wrote: Fri Jan 12, 2018 2:55 pm
mr wilks wrote: Fri Jan 12, 2018 10:59 am Ideally 225 35 19 works well on the fronts . I tried 225 40 19 on previous e89 & had very minor rubbing when pressing on :oops:
265 on rear 9j ? 245 or 255 is ideal width so if you must go 265 then go 30 profile .
I had 255 35 on my 326s & for me it's the best all round fitment for comfort + wheel protection.
I had thought the consensus was to step up to 235/35/19 Front and 255/35 Rear on the 326's when moving away from the RFT's? Now I'm just worried that
A) I've got the sizes wrong? and
B) The big difference in overall circumference front to back, or doesn't this matter? :?
Size is fine, the only difference is your front wheel. Which is 10mm wider than what Mr Wilks posted. Probably cost slightly more, but performance wise should be the same, or at least very very similar.
My E85 Z4 3.0i SMG

BMW Family History (past and present):
1 Series - E87
3 Series - E46 Coupe, E46 M3, E90 (x3)
4 Series - F36, F82 M4
5 Series - E34 (x2), E39
7 Series - E32
X5 - E53, E70
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mr wilks
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Anyone using 265/35 rear and 235/40 front tyres on 19's 326M?

Post by mr wilks » Fri Jan 12, 2018 4:45 pm

kis wrote: Fri Jan 12, 2018 3:09 pm
eff1guy wrote: Fri Jan 12, 2018 2:55 pm
mr wilks wrote: Fri Jan 12, 2018 10:59 am Ideally 225 35 19 works well on the fronts . I tried 225 40 19 on previous e89 & had very minor rubbing when pressing on :oops:
265 on rear 9j ? 245 or 255 is ideal width so if you must go 265 then go 30 profile .
I had 255 35 on my 326s & for me it's the best all round fitment for comfort + wheel protection.
I had thought the consensus was to step up to 235/35/19 Front and 255/35 Rear on the 326's when moving away from the RFT's? Now I'm just worried that
A) I've got the sizes wrong? and
B) The big difference in overall circumference front to back, or doesn't this matter? :?
Size is fine, the only difference is your front wheel. Which is 10mm wider than what Mr Wilks posted. Probably cost slightly more, but performance wise should be the same, or at least very very similar.
Ive no doubt the 235 35 will work fine & without issues but generally speaking that size would be for 8.5j 19s & not 8j .
3 ZMRs
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo

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