The Honda CB550K4
was, arguably, the best of all Honda worlds
of its time, it had the sweet handling of the
CB400 four but was not that far behind the CB750
in the speed stakes. It was first sold in 1974
as the CB550K0 and came in flake sunrise orange,
boss maroon metallic or freedom metallic green
all with black inlay, all models in its run
came with a 4 into 4 exhaust system. In 1975
the CB550K1 with colour changes the flake sunrise
orange and a candy jade green, the clocks also
got dark green faces. In 1976 the CB550K2 again
only got a colour change with candy garnet brown
and the clocks were lighter green. 1977 saw
the paint in black with red and gold striping
the side panel emblem read “550 Four K”.
The performance throughout its production run
had an 8 valve SOHC 554cc engine which put out
around 50hp at 8500rpm which was achieved through
a 5 speed gearbox
