On Tue, 7 Jul 2020 09:23:07 -0400, Wade Garrett
wrote:

I love my 2016 Toyota Avalon Limited....except for the rough ride. You
can feel most every bump, expansion joint, pavement crack and manhole
cover on the road. Even shallow potholes slam and are a teeth-jarring
experience! The tires are inflated to the door sticker pressure and
there's nothing wrong with the suspension.

I know Toyota gave this trim model a "sportier" suspension with
225/18/45 skinny tires on 18 inch wheels to improve handling- rather
than go with the fatter 215/17/55 on 17 inch wheels on the lower trim
models.

It's getting to be tire time and I wonder if it might be worth buying a
tire/wheel package in the smaller size.

Would the taller 55 sidewalls absorb road bumps better? Any problems
with transmission shift points, speedo readings, any of the
electronics/gauge stuff, etc.?
Definitely better ride, and NO change to any calibrations. The
215/55/17 will rie better. I would defintely be checking to see if a
16 inch rim will clear the brake calipers and if so go to a 215/ 65 16
or possibly even a 215/70) which will change the speedo calibration by
a small amount but not cause any other issues)or 21