With MZ’s designs as inspiration, Suzuki won the new 50cc class in the world road racing championships.

Kawasaki was also getting into twostrokes, launching the 50-250cc Samurai range.

In another attempt to snatch scooter sales from the Italians Triumph came up with the T10 Tina, powered by a horizontal 99cc twostroke. It was pretty, but dogged by problems with its toothed-V-belt auto transmission.

Having produced 500s, 600s and 650s, AMC built its biggest vertical twins – the
export-only AJS Model 33 and Matchless G15.