@TheWizard Sure, several reasons why i decided to move to 20's
There is not a whole lot of selection to choose from with 21 inch tires. Not happy with the Pirelli All Seasons, they seem to be wearing funny and very quickly and according to the dealer, my alignment is fine. That said, they wanted to replace my 2 fronts that were down to 4/32, but i declined I purchased the Edge certified pre owned and knew about the curb rash on my stock wheels. i was going to powder coat them, but found a nice set of 20" wheels at my local Tire Barn that are only a few $ more than what my local powder coating guy wants per wheel. Lastly, was reading on another thread http://www.fordedgeforum.com/topic/24489-need-a-softer-ride-than-21/?p=187037 and @onyxbfly posted a pick of his Edge running 275 45 20's and i like the look. Right now, 265's according to https://www.tacomaworld.com/tirecalc?tires=265-40r21-265-45r20 don't show much difference in spec's and speedometer differences, and i worry about veering to far off spec.
Anyway, thank you for your suggestion on tire's. i'll take a look at the Conti's as well.