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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires -- Sponsored by The Tire Rack > Do wheels need to be the same width to be considered square?
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      04-20-2022, 07:59 PM   #1
casualDIYer
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Do wheels need to be the same width to be considered square?

Question: If I mounted a pair of 245/40R18 tires on a 18x8.5 on the front axle and a pair of 245/40R18 tires on a 18x9 on the rear axle, would this be considered a square setup or staggered because the wheel size is different?

If wondering why, just curious to know if there are those who wanted the flexibility to go between a staggered and square setup but not change wheels.

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Last edited by casualDIYer; 04-23-2022 at 10:28 PM..
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      04-21-2022, 12:35 AM   #2
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your described setup is square, tires... however since your rims are different widths and (speculating) offset, you cannot rotate front to rear, only across the axle.

a true square setup would be four of the same rims(diameter, width, offset) at each corner with the same size tires. fully rotatable if wrapped with non-directional tires
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      04-21-2022, 09:48 AM   #3
b58huncho
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Just a question what made you decide to mount such a small difference in tire sizes on there?
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      04-23-2022, 10:30 PM   #4
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Quote:
Originally Posted by b58huncho View Post
Just a question what made you decide to mount such a small difference in tire sizes on there?
It's a typo. Tire width is to be 245mm. The idea would be if I decided to switch from staggered to square would I have to switch wheels or just swap tires.
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