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      02-22-2022, 12:47 PM   #1
tripleog
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Offset for new custom wheels 20"

Hi there, I have a F90 M5 Competition, stock suspension. Ordering some new wheels and tires, gonna keep 20" diameter but move up to 10" wide in front and 11" wide in back. Can anyone help me with what offset I can run to get the wheels nice and flush but I need to make sure they fit. I've looked on here but seems like most of you run 21"s.

Tires will be 285 up front and 295 on the rear. I know stock is 28et so I was thinking I could go to maybe 18et but want to confirm. Thank you for the help.

Last edited by tripleog; 02-23-2022 at 10:13 PM.. Reason: clarification
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      02-27-2022, 01:20 PM   #2
tripleog
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Anybody know what the lowest offset I can go is on stock suspension with 20x10 front and 20x11 rear?
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      02-27-2022, 02:06 PM   #3
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Quote:
Originally Posted by tripleog View Post
Anybody know what the lowest offset I can go is on stock suspension with 20x10 front and 20x11 rear?
Looking at what size spacers people put on the car with oem wheels gives you an indication. And it seems like people put on larger spacers in the front, so I'd get lower offset in the front. But et18 in the rear seems pretty low.
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      02-27-2022, 02:18 PM   #4
Used2be
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Quote:
Originally Posted by tripleog View Post
Can anyone help me with what offset I can run to get the wheels nice and flush but I need to make sure they fit.
I have HRE RC104 wheels, 10" front and 11" rear. Offsets are 23 front, 29 rear. 305/30 tire on the rear and 285/30 tire front. The 305 rear is as large as I want to go with this fitment. For the next set of tires I will use a 295/30 in front. I have about 1/2" fender clearance with the 285 and I want more rubber for track use. I checked the inside clearances also and the 295 will fit. If you use a 35 ratio sidewall it might come out slightly different, so be careful.
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      02-27-2022, 02:47 PM   #5
Tommyj
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Have a play on willtheyfit.com, it’ll tell you how much more the wheel sticks out and also the clearance to the hub for each inset and width you input vs standard.
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