Velocette 1949/1956 KTT Mk VIII “Dieter Busch Special” 348cc OHC engine # KTT 1035 The final development of the Velocette KTT, the Mk VIII, was introduced in 1938 at that year’s Earls Court Show, and was the first motorcycle to use the now-conventional swinging-arm rear fork with a shock absorber unit. The rear suspension system was designed by Veloce development engineer Harold Willis, and was inspired by the Oleo strut landing gear on the DeHavilland Hornet. Power developed was around 30hp@650 ...