This innovative cycle called the Harley-Davidson Topper went on sale in 1960 and featured a metal frame with a fiberglass shell covering ... However, releasing new models in 500cc and 750cc engine ...
The bike carried a three-cylinder two-stroke engine of 750cc, developing 74 horsepower while weighing 452 pounds. If the handling was better than the ‘Widow Maker’ Mach lll, it was still a handful in ...