During the 1950s and 1960s, the main export product for AMC was the AJS/Matchless range – the road bikes were very similar, often with only the badges distinguishing one marque from the other; the equivalent AJS being the Model 18.

The suspension was a vast improvement on the bouncy rigid rear end but wheel travel was limited.

[2] AMC had adopted Velocette's twin-shock swingarm rear suspension design for its top models.

The engine was released with a compression ratio of 5.9:1, because of the poor quality fuel available in the United Kingdom immediately after the Second World War.

Based on the number of currently known TCS's on the Typhoon register kept by Rick Mann, it is now estimated that 225 to 300 were made by the factory over a four-year period, and almost all of them were sold in the US.

This one year only variant with a slightly smaller cylinder capacity, had a frame that when thrashed was less robust than the models that followed.

Components from Italy such as front and rear Paioli suspension, Dellorto carburetor, Lafranconi silencers and Brembo disc brakes were used [6] whilst, harking back to his licence-built Triumph Bonneville T140s, the frame doubled up as the oil tank.

Although electric start and twin disc brakes were options, priced at £2700 (£500 more than a Yamaha motorcycle of similar specification), this was not a successful machine and production ended by 1990.