Castle Donington, UK
The Japanese invasion of the British motorcycleing scene was well underway in the mid 1960's as Yamaha TD!A&B began to reliabily perform and swamp the BSA,Triumph's that together with G50 Matchless and AJS 7R's that were the mainstay of racing fields.
A small but motorcycle orientated firm in the English Midlands called Alpha Automotive of Dudley had already seen the onslaught of the japanese two stroke racers and were busy perfecting their own disc valved t...