While this Honda CB750 Four super-star has been covered elsewhere in Classic Japanese Bikes, it has to be included with the middleweights if only because by the late ‘70s, it’s superbike status has aged gracefully into middle-age and was surpassed by many a large-bore competitor.
Abbreviated to the z650 in Europe, as were all the KZ models, the ‘Son of Z1” was first produced as a 1976 model and lasted until 1983. This classic Japanese motorcycle earned a sterling reputation as a bike with the handling of a 500 and the power of a 750.
This Yamaha twin was manufactured from 1968 to 1985, making it one of the longest running Japanese motorcycles ever produced. Also known as the Yamaha XS-1, there were a great many iterations of this famous mark.