Featured Listing: 1981 Kawasaki GPz550

The early 1980s were a bad time for speed. With a very few exceptions, cars had spent the previous decade becoming wheezy, lumbering and compromised. Motorcycles were yet to fully cross the Rubicon from being either quirky runabouts or the steeds of tattooed heathens to the mounts of true enthusiasts. And then in 1981, Kawasaki…