245/60 what I would use. "235" tires actually have 190mm patch so you lose a lot of grip. Slightly narrower but going from 55/60 will make for softer taller tire to remove some rattle from the pothole.

You can work on lower psi also until you find you are wearing outside tread. Maybe 30 vs. 32 psi. Three risk is hitting a deep enough hole you can have a rim strike and kill the tire the rim and the bearing.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)