The T100T variant of the Tiger was named for the company's success in the 500cc class at Daytona in 1966. It represented the ultimate development of the unit construction 500cc Triumph. When Motor Cycle News tested an example they recorded a top speed of 111 mph and still managed to achieve 64 miles to the gallon. Revisions to the standard T100 engine which enabled these figures to be achieved included the use of a 9:1 compression ratio, splayed inlet manifolds for the twin carburettors, and Bonneville-profile camshafts.
The Triumph Vertical Twin
Triumph had made its name based on the great Edward Turner-designed vertical twin engines that debuted with the Speed Twin of 1938. The early engines were mated to a separate gearbox, but in 1957 Triumph updated its engine design to unit construction, housing the gearbox into the same casing as the crankshaft. The result was a more reliable engine that helped reinforce Triumph's already excellent reputation.
The T100T and T100R
The Daytona model was launched in 1967 as a 500cc sports model fitted with twin carburetors for maximum breathing efficiency and more horsepower. Both the T100T and T100R were available on the US market, the latter named for the Daytona Beach Speedway victories which Triumph had achieved.
The Daytona had a higher performance specification which included twin carburettors, and was the first 500cc Triumph production motorcycle to be able to genuinely "crack the ton".
See also Triumph 1968 500cc US Models
