I sort of went the other way. My 2nd bike is the Ultra. The Street Bob dynos @~132, but I wanted a 2up too so I added the Ultra. I have the detachable and now with the experience, I think sometimes I should have gotten the Ultra souped up and called it good.
I always thought it would be great to ride "Black Death".... Being in New York I am not sure i could ride it far but that bike always intrigued me as a kid.....
I rode 25+ different bikes from varying manufacturers. Five minutes into the test ride on the Road King, I knew it was the one that best fit me. I wanted to ride past the dealer and just throw the bag of cash and keep riding.