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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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Old 02-03-2015, 06:35 PM
p598738 p598738 is offline
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Location: Maine Florida
Join Date: Sep 2012
Posts: 22
Mein Auto: Z4 2,5 and 3.0
2005 Z4 rim size(s)

I want to have a spare tire and rim for my Z4. The tire size is 225/50R16. How interchangeable are the rims across the product line ? If I buy a 16 inch BMW rim can I use it on this car ?? Thanks.
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Old 02-03-2015, 07:35 PM
sudoer sudoer is offline
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Location: California
Join Date: Jul 2014
Posts: 6
Mein Auto: 04 Z4 3.0
I'm using style 112 17x8 rims from an X3 on mine without a problem. Barring a few models that use odd wheel bore sizes, almost any 17"+ BMW rim with ~40-50mm offset should work.
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Old 02-04-2015, 07:14 PM
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Bucko521 Bucko521 is offline
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Location: Regina, SK, Canada
Join Date: Sep 2010
Posts: 458
Mein Auto: 06 Z4 3.0i & 01 Z3 2.5i
Ok...so we need a proper reference on rims size for Z3 models (non ///M)

The ranges of possible values for tires and rims of BMW Z3

Tires for BMW Z3
•Diameters: 15'' - 18''
•Width (mm): 205 - 245
•Tire aspect ratio (%): 35 - 60
•Smallest tire size: 205/60 R15
•Largest tire size: 245/35 R18 (some have used 19" but don't have those numbers)

Rims for BMW Z3
• Bolt pattern 5x120
• Diameter: 15'' - 18''
• Width (inches): 7 - 9.5
• Offset (mm): 35 - 47 (37 - 45 on some charts)
• Bore 72.6 mm

There are several sites to mix match width, offset, and diameter to validate if you are choosing wisely.

p.s. BTW the Z4 from 03-08 have basically the same tire, wheel, offset, and bore...so it ups the options.

ZSCCA Member
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