Triumph 350 and 500 Unit Twins 1957-1973
Models –
Twenty-One (3TA) 348cc 1957 to 1966
T90 348cc 1962 to 1969
Speed Twin 5TA 490cc 1958 to 1966
T100 models 490cc 1959 1974
Engine – Petrol: 348 & 490cc air-cooled unit construction twin-cylinder
View your shopping basket or Browse other items in Triumph Workshop Manuals.
Connect With Us