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      10-31-2017, 02:49 PM   #1
LOW4LYF
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Offsets for 20x10 and 20x12 (want to by wheels @sema)

Want to get a new set wheels at the sema.

Front 20x10 with 255/30
Rear 20x12 with 305/25

I'm lowered on KW HAS.

Front should be fine with et20 I guess? How about the rear? 40?
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      10-31-2017, 07:36 PM   #2
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Quote:
Originally Posted by Figurka View Post
Want to get a new set wheels at the sema.

Front 20x10 with 255/30
Rear 20x12 with 305/25

I'm lowered on KW HAS.

Front should be fine with et20 I guess? How about the rear? 40?

Safe bet would be sticking to 20x9.5 in front with has kit maybe others can chime In. On a 20x9.5 In the front you can probably push the offset to ET16, ET20 being pretty standard on 20x9.5 and recommended by most.
Rears have more room again the safe bet would be a 11.5 in rear not sure on what offset with a 11.5 but on a 20x11 most will go to ET35-ET40 for a flush look
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      10-31-2017, 08:08 PM   #3
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Front = ET25
Rear = ET50
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      10-31-2017, 09:16 PM   #4
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I do have already 10" et25 with 5mm spacer in the front and 265/30 tire, so front 10" with 255/30 et20 should work fine.

Not sure about rear, et50 is too high. Saw a guy running et37 with 305/25 on a F80, so et40 with 12" should work on a F82 due 3mm more clearance. I try to avoid spacers for a flush fitment.
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      11-01-2017, 06:28 PM   #5
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Offset without wheel width is useless.

I bet that the ET37 was with a 11" width wheel. This is a 12" width wheel -an extra 12mm of offset on both the inside and outside over an 11" width. Therefore a 12" width with ET50 would have the same outside poke as an 11" width with ET37.

The real problem is the inside clearance of a 12" ET50. It may or may not clear the strut.

Quote:
Originally Posted by Figurka View Post
I do have already 10" et25 with 5mm spacer in the front and 265/30 tire, so front 10" with 255/30 et20 should work fine.

Not sure about rear, et50 is too high. Saw a guy running et37 with 305/25 on a F80, so et40 with 12" should work on a F82 due 3mm more clearance. I try to avoid spacers for a flush fitment.
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      11-01-2017, 07:28 PM   #6
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No, it was a 12" et37 with 305/25 Toyo tire on a silver F80 with Rotiform wheels.

20x12 et40 with 305/25, should have similar poke as my current 20x11 et25 with 285/30.

Ordered the wheels today, offsets not finally confirmed yet.

Thanks for your help.


Here is a 12" et47 with 325 tire

http://f80.bimmerpost.com/forums/sho....php?t=1365364

Last edited by LOW4LYF; 11-01-2017 at 07:34 PM..
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      11-03-2017, 09:24 PM   #7
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Quote:
Originally Posted by Figurka View Post
No, it was a 12" et37 with 305/25 Toyo tire on a silver F80 with Rotiform wheels.

20x12 et40 with 305/25, should have similar poke as my current 20x11 et25 with 285/30.

Ordered the wheels today, offsets not finally confirmed yet.

Thanks for your help.


Here is a 12" et47 with 325 tire

http://f80.bimmerpost.com/forums/sho....php?t=1365364
Got pic on 11j et25? That's really aggressive spec for the rear
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