Although less powerful than its main competitor the Norton Manx the G50 proved highly competitive at three hundred pounds and was faster round bends.

Matchless solved the problem by creating a limited-production, street-legal G50 CSR, by fitting the G50 engine into the G80CS Scrambler frame.

[2] Financial problems at AMC ended production in 1963 and all the tooling and spares were sold to sidecar Grand Prix racer Colin Seeley in 1966.

These exclusive motorcycles continue to be hand built to this day to individual customer specifications by TGA Ltd, now based in northern France.

[4] The Seeley G50Mk2 racing motorcycles built by TGA Ltd are high specification with a Titchmarsh chassis, Walmsley G50 motor, 6 speed PGT gearbox and lightweight fairing.