New to this forum. Have had a 2014 GL450 for 5 years, and love it. Just ordered a 2019 G550. Live in CO, so planning to take it off-road a fair amount. I’ve read the posts on 20” A/T tires. If I go that route, I’m deciding b/w the General Grabber ATX and Falken Wildpeak AT3W, or possibly the Nitto Ridge Grappler, all in 275/55/20.

I’ve watched several off-road test videos, and it shows the G550 with 18” black MB wheels. Any idea where to get these, or where to look for other 18” wheels?

Thanks.