I wish 20" wheels were possible with the MRC and air suspension from the factory. I'm not really interested in 22" wheels.I have a ‘21 Yukon with MRC and air suspension. I recently bought a set of 2021 OEM 20” Yukon wheels to replace the 22” wheels it came with. The ride is definitely smoother, so much so that my wife even noticed the difference. The 20” rims also seem to match the chrome trim on the Denali better than the 22s and I find myself not worrying as much about large pot holes due to having more sidewall on the tires.