E60, E61 Parts, Accessories and Mods Discussion about both stock and aftermarket parts for the E60. Accessories and modifications too!

Offset question

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Old 02-06-2005 | 01:11 AM
  #11  
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My Ride: 545i Mystic Blue/Black Leather Type 124 Wheels
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Originally Posted by alpineweiss' date='Feb 5 2005, 08:52 PM
ACS specs ET 15 front and ET 8 rear for their 19x8.5 TypeIV..
I'll list what their specs are:
19x8.5|? F:ET15? / R:ET8
19x9.5|? F: ------/ R:ET15
20x9.0|? F:ET22 / R:ET14
20x9.5|? F:ET20 / R: ----
20x10 |? F: ------ / R:ET33


[snapback]87137[/snapback]
Yes. but the hardware kit that comes with the wheels include spacers that get there off-set right to BMW's specs
Old 02-06-2005 | 11:43 AM
  #12  
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Wow thanx alot guys

Just out of curiousity, to increase the size lip you would decrease your offset to what the vehicle can handle? I dont get how that would work.

Would a 20x10.5 with offset say at 27 be smaller than a offset say at 22?
Old 02-06-2005 | 12:38 PM
  #13  
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The offset is howfar the hub is from the centre of the wheel in milimeters


Take a hypothetical wheel:

If the wheel has a "lip" and is say 10J ( 10J is the width of the wheel )

at a offset of ET:40 the hub and thus spokes are 40mm fron the centre of the weel ( towards the outside), so are near the outside of the wheel, and you dont have much of a "lip"

Now the same 10J wheel with a offset of ET:20, the hub is now onlt 20mm from the centre of the wheel, so you have a bigger distance from the hub to the outside of the wheel , thus giving it a bigger "Lip"



On the wheel you gave the "lip" whould be smaller on the ET:27
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