The Bandido is cool, especially made for the U.S. market. The engine was too Bultaco's first big bore. As they had no experience with such a big displacement they changed a lot: primary drive, less gears different kick starter system, ...
Anyway the bike was much more sold in the U.S. the Europeans did not get familiar with the bike. As the demand got down and Bultaco figured out other ways to create big bore bikes the layout of the Bandido did not get any further evolution and was laid down for other designs where improvements where easier to develop.
Early Banditos model 18 1968-69, from 1969 to 1971 the model 51 a 350cc came out. In late 1969 the MK2 a 360cc model 61. In 1971 they upgraded also the 350cc model (nr. 65).
Production went up to 1972.
Production numbers for the Bandido are not given ... You can figure out your model by the first numbers of the frame and engine, both numbers should be the same.
Looking forward to any restoring project to this model, only sold in very very small numbers in Europe.