I've always liked the Raleigh Sport (There's 4 of them in the basement/garage right now) and always joked that I'd like to find one in 531. I'm done joking. I've found a new purpose in life. They even make it in my size!
I've had a couple of those Golden Arrows but I think they only went up to 21". Fun though.
Now all I want to see is a rod brake roadster in 531.