Was surprised at how much my old Tour Glide would lean without scraping, and then I tried keeping up with my daughter on a Sporty one day - and found out it'll grind them!

 

The heels of both boots are worn at angles.
The primary case on the left is scratched from scraping.
The pipes on the right are scratched from scraping.
(When you roll deep enough to scratch the primary, you will have to lift your foot from the peg and allow it to fold a bit if you have forward controls)

I don't know about a bagger or softail, but you can roll a Super Glide pretty deep.

 

Saw a lean angle chart for stock Harleys sometime back, and was surprised that Sportsters came in second; Super Glide was first (most lean angle). I've hit metal on my 1200 once, hard, too, but that was way beyond what I'd feel comfortable with on a bagger. Way beyond what a bagger would do, anyway. I blame that Sporty strike on Avon tires, the previous Dunlop rear would slide before it got cranked over that far, on both my Sporties.