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      06-26-2016, 02:57 AM   #1
e90sexion
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BBS GT4 wheels setup advice needed,

If I were to put squared setup BBS GT4 wheels 18x10 ET40 with spacers.
Would I need spacers front? or just back is fine?
I was thinking 15mm spacers all around but open to opinions. I don't know how would front work w/ or w/o spacers.
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      06-27-2016, 07:16 PM   #2
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That depends on your suspension. I have never tried a wheel with that conservative of an offset in the front with OE suspension. According to the seller, they fit but he is on TC Kline coil-overs. I'm not sure if the TC Kline dampers provide more inner clearance than OE. Assuming that the TC Kline and OE dampers have the same inner clearance - you should be good. Assuming they fit with the OE suspension, they will be OK with lowering springs.

However, the wheels (with 275's) will require a 20mm+ front spacer with KW clubsports or any coil-over that reduces inner clearance.

In all cases, I would plan to add front camber in order to clear the fender.
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      06-28-2016, 12:37 AM   #3
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15mm spacers on all four corners would work well, but as slicer said, it depends on your suspension. The GT4 comes with spacers from BMW if I am not mistaken.
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      06-28-2016, 11:34 AM   #4
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The TCK dampers are steel and so a little smaller diameter than stock, but the spring perch location is up to the user
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      Today, 06:29 AM   #5
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I have these wheels and you will need special spacers or centring rings to make them fit properly as the hub size is different.
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