285 35 20 Fit instead of 285 30 20?

Dvdman · 02-18-2024, 03:41 PM

I just got new 20 in rims for my e63 M6. The recommended rear tire is 285 30 20. I found a good price for PS4s but they are 285 35 20. is this OK? Thanks!

M3SQRD · 02-18-2024, 04:32 PM

This isn’t the right forum for this question. There’s an e60 M5 dedicated forum:

https://e60.5post.com/forums/index.php

However, to answer your question, it’s definitely not recommended. The 285/35 is 1.1” larger in diameter than the 285/30 (4.1% change in diameter). The stock rear tire size was 285/35-19. This means your speedometer will be off by at least 4.1%. Also, depending on how aggressive your wheel width-offsets are and how much you’ve lowered the car, there’s a good chance you’ll have clearance issues with the fenders and/or fender liners.

02-18-2024, 03:41 PM	#1
Dvdman Major 168 Rep 1,000 Posts Drives: 2022 X5 and 2007 M6 Join Date: Aug 2009 Location: Chicago, IL iTrader: (2)	285 35 20 Fit instead of 285 30 20? I just got new 20 in rims for my e63 M6. The recommended rear tire is 285 30 20. I found a good price for PS4s but they are 285 35 20. is this OK? Thanks!
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02-18-2024, 04:32 PM	#2
M3SQRD Major General 2161 Rep 5,548 Posts Drives: E92 M3,G20 330ix,F22 240iX,F82 Join Date: Jun 2009 Location: Mid-Atlantic iTrader: (11)	This isn’t the right forum for this question. There’s an e60 M5 dedicated forum: https://e60.5post.com/forums/index.php However, to answer your question, it’s definitely not recommended. The 285/35 is 1.1” larger in diameter than the 285/30 (4.1% change in diameter). The stock rear tire size was 285/35-19. This means your speedometer will be off by at least 4.1%. Also, depending on how aggressive your wheel width-offsets are and how much you’ve lowered the car, there’s a good chance you’ll have clearance issues with the fenders and/or fender liners.
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