Tire Vibration when Cold

[Alexander van Gerbig]

    I have had a vibration in both the 80 and 90q20v since I have had the
16" up in VT.  When I get in the car and go for the first drive in the
morning I always get a quite sizable vibration from 40mph up.  This
vibration goes away after driving several miles, the colder the longer it
takes for it to go away.

    This has happened in both cars, with Dunlop Sp9000's and Kumho 712's,
more so with the Kumho's.  I figure it's the tire sitting overnight on the
uneven rocky driveway causing the rubber to sort of form around the bumps
and such.  Is this common?  The vibration goes away after 5 miles or so.
I've tried higher and lower tire pressures and it really doesn't have any
effect, but temperature really does, below 50 and the vibration is quite
obnoxious for the first 5 miles, feels like I have a bent rim and then it
goes away almost entirely.

Cheers!

Alexander van Gerbig -- '90 90q20v -- '88 80t (R.I.P)

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