Long stroke 600cc single that used its engine as a stressed frame member. Huge flywheel meant acceleration was stately but once wound up it would keep its speed against most obstacles. Usually used to pull sidecars, where it works well. Later Model 120 had 650cc engine that was swamped with vibes and didn’t work very well. Starting’s an acquired art. Go for a Model 100 with proper rear suspension.
1946-62 596cc OHV single 24hp, 75mph, 65mpg, 400lbs