Originally Posted by YJ John
If you want a smooth ride, you do NOT want 20" wheels. I have no idea why they would put 20" on a Jeep, they are worthless off-road. Big rims are for looks only, no benefit on or off-road
My 20s ride smoother than my 18s. Many here use 20s off road with much success.
Most here don't give a rats behind about off road rock sledding capability but want optimum all weather on road and moderate trail capability.
The 20s are functionally superior than 18s on the street. 20s provide more margin of safety on the highway, 18s provide more resistance to pot hole, debris, and curb damage.
Some tires are smoother, others have a harsher ride regardless of rim size.