Stumbled upon a write up on the history of Triumph bikes today thought this was interesting:
"The "Tiger 110" was introduced in 1954, featuring the newly developed "swing arm" rear suspension system. Perhaps no single model defines the Triumph brand more than that of the "Bonneville," or "Bonnie" as it came to be known. The evolution of the Bonneville began with the introduction of the Tiger 110 in 1954."
And of course some inspiring engine pics. - what the 650 should end up like!