A few Sundays back I was riding out west of Austin and passed a Yamaha sportbike that had some type of articulated swing-arm front end. I vaguely remember the bike from the late 80's or early 90's. Anybody know what it was? Size motor, years produced, handling characteristics, etc. The bike obviously had been well-maintained. Unfortunately, I didn't have the time to wave the guy down as the sun was pretty low and I had over 100 miles to ride to get home.