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01-27-2008, 07:00 PM | #1 |
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Z4M offset quick help please.
I'm considering some new wheels and would really like to stick to the stock size rims.
Stock Front wheel 18 X 8 Offset 42 Rear wheel 18x9 offset 30 New Rims Front wheel 18x8 offset 34 Rear wheel 18x9 offset 40 Using a wheel offset calculator it says that: Front - Inner clearance 8mm MORE & Outer position EXTEND an extra 8mm Rear - Inner clearance 10mm LESS & Outer position RETRACT by 10mm What are your thoughts on the clearance with these offsets as well as overall stance? After some feedback on another forum, I'm considering running the above setup with either 10mm spacer, to bring the rear out to stock offset, or 20mm spacer to move the rear out about 10mm to match the front. I any advice you could provide quickly would be a huge help. |
01-27-2008, 07:32 PM | #2 |
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I have no idea how offset works, but if you go with what tirerack says you should be fine. I've never seen anyone complain about advise they got from tirerack.
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01-27-2008, 08:39 PM | #4 |
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front should be fine.
rear might need spacers.. it might rub in the inside where the shock is.. |
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01-27-2008, 08:42 PM | #5 |
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01-27-2008, 08:53 PM | #6 |
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You might be okay but I think 20mm is too much..
10mm = ~2/5 inch.. See if it'll start rubbing on the outer side where the fender is.. |
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01-27-2008, 09:02 PM | #7 |
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You really think 10mm would be too far out on the rear? The fronts are 8mm extended outwards. I thought it would match nicely. But you are right, I'd hate to be dealing with fender rolling, etc.
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01-27-2008, 09:34 PM | #8 |
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You really don't want to mess with spacers if you can avoid it. What you really need is lower offset rear wheels. When you add spacers you're adding another fail point, more unsprung weight, and putting additional stress on your hubs.
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01-27-2008, 09:44 PM | #9 | |
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Again, I am completely new to this and I am just trying to understand why spacers are seen in such a negative light. |
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01-27-2008, 11:43 PM | #10 | |
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Quote:
I've seen sheared bolts at the track from running spacers. It's not pretty. For anything that sees moderate track use, if you're going to use spacers, convert everything to lug nuts instead of using bolts. |
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01-28-2008, 01:50 PM | #12 | |
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01-29-2008, 08:10 AM | #14 | |
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I'm running
19 x 8.5 235/35/ Front 19 x 9.5 265/30 Rear Offsets are 35/40 no rubbing on stock suspension, with room for a drop. There are some photos posted in this thread on Bimmerforums http://forums.bimmerforums.com/forum...d.php?t=890163 Quote:
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