Maybe compared to bikes of two decades ago, though the only thing I've found scary is shit brakes. I think the Triumph twins of the late 60s/70s were better handling than most of the UJM machines of the same era. I'd go as far as saying a nice 68-70 TR6C or something is a way more enjoyable bike to ride than the last gen of modern oil-cooled Bonnevilles.
Tyre tech has also moved on too. Suspect that the tyres on the BSA engined triumph were old and all felt a bit suspect. Also riding someone elses bike that was far different to anything I have ridden before.
Maybe compared to bikes of two decades ago, though the only thing I've found scary is shit brakes. I think the Triumph twins of the late 60s/70s were better handling than most of the UJM machines of the same era. I'd go as far as saying a nice 68-70 TR6C or something is a way more enjoyable bike to ride than the last gen of modern oil-cooled Bonnevilles.