The "UJM" era of motorcycles
In the 1970's most of the Japanese motorcycles shared the same basic design: an air cooled inline 4 cylinder motor on a frame featuring a straight seat and tank. They all looked to be the same to the untrained eye, and until you approached the bikes close enough to read the tank emblems they were pretty much unidentifiable. Hence the term "UJM" which was short for "Universal Japanese Motorcycle."
1971 CL350 K3
1971 CB500 Four
1973 CB450
1975 CL360
1976 CB750
79 CBX
Remember the big 1069cc inline 6 cylinder Honda?
71 750 Chopper!
A radical example of the 1970's customizing era
