One feature of the late twenties and early thirties British motorcycles
is that the ohv 500s often shared the same engine base components with the company's more sedate 550 or
600 cc sidevalve versions,
After the crisis of the early thirties, the surviving British manufacturers including Triumph, were again
expanding their programs and by 1935 they were offering seven different overhead valve five hundreds.
Mine
is a basic ohv 5 S/2 , a twin exhaust push rod engine with a cast iron cylinder and head, and possibly
Triumph's last model ever to offer the option of a hand change gear box. This is the last year before the
famous constructor Ed Turner would change these sporting singles into "tigers, and eventually introduce the
speed twin in 1938
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