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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Wheels and Tires -- Sponsored by The Tire Rack > 20" square setup on 340 X-drive?
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      09-09-2019, 10:07 PM   #1
Seattle335
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20" square setup on 340 X-drive?

I have the opportunity go with this setup on my 340 XD - 20" x 9" et33 - with 245/35 on all 4 corners.
Any downside to going with this setup on my vehicle?
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      09-10-2019, 12:23 PM   #2
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although your butt dyno may not sensitive enough to feel it, 245/35/20 will worsen your acceleration and braking because it's taller(pavement gearing) and heavier. although, it fills the hideous x-drive gap nicely, it's also raising the total height of the vehicle 0.4". if the wheel offset is too low, there is a possibility of front tires outer shoulder rubbing fenderwell liner while turning.

personally, i prefer not deviating more than 0.5" diameter greater(or lower) than the 26" oem diameter. 26.8" is approaching F34 oem diameter of 27".

here is a thread with square 245/35/20... https://f30.bimmerpost.com/forums/sh...d.php?t=849595
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