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      10-13-2020, 12:36 PM   #1
MNR
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Help Me Confirm Offsets!

Looking to add a winter set to my F80 ZCP with the following specs:

Front:
265/35/19
19"x9.5" ET22

Rear:
275/35/19
19"x10" ET25

I am terrible at understanding offsets, so my question to the forum is - will these wheels fit with no rubbing and no need for spacers? I did some digging and see that 437Ms are ET29 and ET40. Curious how these differ...
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      10-13-2020, 04:23 PM   #2
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19"x10" ET25 is basically a front rim, not offset enough to look right as a rear. My BBS 9.5 fronts are ET25 and 10.5 rears ET35.
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      10-13-2020, 04:38 PM   #3
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Quote:
Originally Posted by MNR View Post
Looking to add a winter set to my F80 ZCP with the following specs:

Front:
265/35/19
19"x9.5" ET22

Rear:
275/35/19
19"x10" ET25



I am terrible at understanding offsets, so my question to the forum is - will these wheels fit with no rubbing and no need for spacers? I did some digging and see that 437Ms are ET29 and ET40. Curious how these differ...
I’d run a 9.5 square setup for winter. Preferably 18s And the narrowest tire you can get if your driving in the snow and looking for maximum traction.

18x9.5 et 22 front
18x9.5 et 20 rear

OR

18x10 et25 All Around

To answer your question. Those offsets in the OP are great and will work perfect with no issues if you are set on those. Tire sizes may be a little wide for winter. I’d look for somthing narrower.
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Last edited by YKIGI; 10-13-2020 at 04:48 PM..
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      10-14-2020, 04:16 PM   #4
MineralWhiteF80
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here is my current setup which is VERY close in the front and exactly what the rear would look like to the specs you posted.

I have stock m437 wheels with 255/35 and 275/35 tires, 20mm spacer in front and 15mm spacer rear.

Front m437 wheels are stock +29 offset but with the 20 mm spacer = effective offset of +9. A 9.5" +22 offset wheel would stick inward 7 mm more than my wheel, but a 265 tire would add another ~5 mm in each direction (depending on tire stretch) for a total overall change difference of roughly 2mm from how my front tire looks in this picture (your tire would be ~2mm more inboard than my setup). Overall, very close comparison.

The rear m437 wheel is a 10" +40 offset and I have a 15 mm spacer on the rear for an effective offset of 25mm and a 275/35 tire- exactly like you are wanting to do.

So, my rear wheel/tire would look exactly the same as your new setup and my front tire would be sticking out just a tiny bit more than your proposed setup.

My fronts rub a tiny bit on fast, hard compression bumps. Rear does not rub at all.

I like this look.

Also, a quick way to run different comparisons:
https://www.1010tires.com/Tools/Whee...et-Calculator#
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      10-14-2020, 08:10 PM   #5
MNR
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Thank you all!! Tremendous information.

It is for a winter setup that is already put together...I am lowered on B16s so I'm worried about rubbing now.

Quote:
Originally Posted by MineralWhiteF80 View Post
here is my current setup which is VERY close in the front and exactly what the rear would look like to the specs you posted.

I have stock m437 wheels with 255/35 and 275/35 tires, 20mm spacer in front and 15mm spacer rear.

Front m437 wheels are stock +29 offset but with the 20 mm spacer = effective offset of +9. A 9.5" +22 offset wheel would stick inward 7 mm more than my wheel, but a 265 tire would add another ~5 mm in each direction (depending on tire stretch) for a total overall change difference of roughly 2mm from how my front tire looks in this picture (your tire would be ~2mm more inboard than my setup). Overall, very close comparison.

The rear m437 wheel is a 10" +40 offset and I have a 15 mm spacer on the rear for an effective offset of 25mm and a 275/35 tire- exactly like you are wanting to do.

So, my rear wheel/tire would look exactly the same as your new setup and my front tire would be sticking out just a tiny bit more than your proposed setup.

My fronts rub a tiny bit on fast, hard compression bumps. Rear does not rub at all.

I like this look.

Also, a quick way to run different comparisons:
https://www.1010tires.com/Tools/Whee...et-Calculator#
Thank you! When you say rubbing, I'm assuming outer sidewall rubbing on the fender? Car looks amazing on those 437s by the way
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      10-14-2020, 09:17 PM   #6
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I have the same specs, perfect. Lowered slightly on a has kit . No issues.
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      10-14-2020, 09:54 PM   #7
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Quote:
Originally Posted by MNR View Post
Thank you all!! Tremendous information.

It is for a winter setup that is already put together...I am lowered on B16s so I'm worried about rubbing now.

Quote:
Originally Posted by MineralWhiteF80 View Post
here is my current setup which is VERY close in the front and exactly what the rear would look like to the specs you posted.

I have stock m437 wheels with 255/35 and 275/35 tires, 20mm spacer in front and 15mm spacer rear.

Front m437 wheels are stock +29 offset but with the 20 mm spacer = effective offset of +9. A 9.5" +22 offset wheel would stick inward 7 mm more than my wheel, but a 265 tire would add another ~5 mm in each direction (depending on tire stretch) for a total overall change difference of roughly 2mm from how my front tire looks in this picture (your tire would be ~2mm more inboard than my setup). Overall, very close comparison.

The rear m437 wheel is a 10" +40 offset and I have a 15 mm spacer on the rear for an effective offset of 25mm and a 275/35 tire- exactly like you are wanting to do.

So, my rear wheel/tire would look exactly the same as your new setup and my front tire would be sticking out just a tiny bit more than your proposed setup.

My fronts rub a tiny bit on fast, hard compression bumps. Rear does not rub at all.

I like this look.

Also, a quick way to run different comparisons:
https://www.1010tires.com/Tools/Whee...et-Calculator#
Thank you! When you say rubbing, I'm assuming outer sidewall rubbing on the fender? Car looks amazing on those 437s by the way
Quote:
Originally Posted by MNR View Post
Thank you all!! Tremendous information.

It is for a winter setup that is already put together...I am lowered on B16s so I'm worried about rubbing now.

Thank you! When you say rubbing, I'm assuming outer sidewall rubbing on the fender? Car looks amazing on those 437s by the way

Correct, the outside of the front tires contact a tiny section of the black fender liner that sticks out closer to the tire than any other part of the fender or plastic liner. I think I could massage the liner a bit with a heat gun and fix it, but I think I'll let it self clearance itself LOL

I'm lowered on KW V3 coilovers and have zero fitment issues suspension wise. You can see more pictures of my wheel/tire fitment on my Instagram page= @thatwhitem4
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      06-11-2021, 07:35 PM   #8
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Quote:
Originally Posted by MineralWhiteF80 View Post
here is my current setup which is VERY close in the front and exactly what the rear would look like to the specs you posted.

I have stock m437 wheels with 255/35 and 275/35 tires, 20mm spacer in front and 15mm spacer rear.

Front m437 wheels are stock +29 offset but with the 20 mm spacer = effective offset of +9. A 9.5" +22 offset wheel would stick inward 7 mm more than my wheel, but a 265 tire would add another ~5 mm in each direction (depending on tire stretch) for a total overall change difference of roughly 2mm from how my front tire looks in this picture (your tire would be ~2mm more inboard than my setup). Overall, very close comparison.

The rear m437 wheel is a 10" +40 offset and I have a 15 mm spacer on the rear for an effective offset of 25mm and a 275/35 tire- exactly like you are wanting to do.

So, my rear wheel/tire would look exactly the same as your new setup and my front tire would be sticking out just a tiny bit more than your proposed setup.

My fronts rub a tiny bit on fast, hard compression bumps. Rear does not rub at all.

I like this look.

Also, a quick way to run different comparisons:
https://www.1010tires.com/Tools/Whee...et-Calculator#

Great Question - Awesome Forum help - The M4 looks fantastic as well! This also helped me somewhat with my question as well.
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      07-20-2021, 06:41 PM   #9
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Im posting as this is a similar set up to what one of the members posted in terms of offset and "similar" tire size - im just looking for second opinions as i believe i will be okay

Front wheel 19x9 offset 18
Tire - Blizzak LM - 32 Size 265/35/19

I am not lowered at moment however i will eventually be putting in some type of HAS system most likely the m performance.

Any input is greatly appreciated
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