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BMW 3-Series (E90 E92) Forum > BIMMERPOST Universal Forums > General BMW News and Cars Discussion > difference between 17x7 and 17x7.5 rims



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      08-30-2013, 12:41 AM   #1
turbozeke418
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difference between 17x7 and 17x7.5 rims

I bought a used set of 128i rims that are in great shape. They are 17x7 with a 47mm offset. I want to put these on my 2008 535xi which currently has 17x7.5 with a 43mm offset. I know with the offset the will be ok. Will I notice any difference with .5 inch difference in the rim width? Obviously I'll have a lesser footprint, but I think that with the 4mm gained in the offset that should make it almost to where the current stock wheels sit looking at the profile of the car...correct?

These are whats going on it http://www.bmwstylewheels.com/bmw/256
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      08-30-2013, 07:24 AM   #2
c_ozanich
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1 inch = 25.4 mm, so 0.5 inch = 12.7 mm

12.7mm - 4mm = 8.7mm

8.7mm/25.4mm = 0.3425" difference in wheel1 compared to wheel2
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      09-01-2013, 01:46 AM   #3
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You technically lost 4mm since the larger the offset the more pushed in and narrower stance the car will have.
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