in 1968 the new "750 cc" norton commando model appeared, with the engine/gearbox/swingarm unit isolastically insulated from the frame with a series of rubber mountings. this kept the vibrations from the rider, giving a smooth comfortable ride. the commando was a best seller, and voted #1 motorcycle of the year a number of times in britain. "850 cc" models appeared for 1973, giving more torque. for 1975 an electric start arrived in the 850 mk3.