I can get into tachycardia fastest with a road bike, but that's just me. No crashing to slow me down.
But, Kevin, the day after you first posted with this trikke fad, I was going around Lake Harriet and saw two old boys proudly riding theirs. I'll check with SWMBO to see if they all ready have a nick name for them in the E.R.
they probably do have an ER nick name for them if they show up with any frequency. Something like kamakazi three wheeler, or some such.