The Secret Service
Triumph 5T Speed Twin Episode: 1.?
Assez vraisemblablement... From the shape of the primary drive cover and the small front brake we can see it is a 500 so not a Bonneville. It looks like a police bike - white colour and leg shields - so I would say 1964 or '65 5T Speed Twin.
5TA speed twin 5T was pre-unit,5TA was unit based on 3TA