1949 Triumph 498cc Speed Twin Registration no. LAU 899 Frame no. TF 26981 Engine no. 5T9104548

speed twin triumph turner's twins 498cc predecessor vertical page display 1949 caused motorcycle years bulk lighter reading completion 1979 edward acquired registration 1937 admirers designed previously major manufacturers suffered barn file machine records owner leslie leamington issued completely sensation appeared guessed influential true coventry firm's newcomer established formula adopted britain's previous excess narrower crankcase contemporary single-cylinder tiger certain angles looked just like exemplary road-going better 100mph attainable photographs vendor's office require re-commissioning safety old-style hemmings derby recorded mileage 45,060 design succeeding twin-port proved favourable undergoing checks 1997 5t9104548 prove decade single performance conditions vendor restored restoration prior miles 26981 engine frame offered