I don't know much about this bike other than it is very nicely built. From the Panasonic history website, Panasonic organized a Panasonic/Shimano team in the US in 1979. I really like the fastback seatlug treatment, but I could see problems with over tightening of the seatbolt with it threading into the other seatstay. The fork has beefy round fork blades and even the seatstays are rather large.
