Tornax

This was the model I-26, which has a 600 cc single-cylinder side-valve engine imported from JAP in London, England producing 15 bhp.

Tornax claimed that this machine would produce 72 bhp (54 kW), and guaranteed a top speed of 190 km/h (118 MPH).

Some German manufacturers ceased making motorcycles, but Tornax survived by reducing its range to one model, the aptly named Universal, with a 600 cc side-valve Columbus engine.

The latter was a sports machine that used the same overhead camshaft Columbus parallel twin engine as the rival Horex S8.

Tornax also launched a small sports car, the Rex, with a 700 cc DKW engine, but only 158 were built.

These have unit construction 250 cc engines from Opti in Essen, mounted in a frame that has swinging-arm rear suspension and typically German Earles front fork.