Eurogang

Série 6 première version

A parallel twin that looks more Japanese than British (from what I can see anyway), the pipes don't look right for XS 650, this leaves XS500, Z750B or a few Honda 250/350/450's. Any other shots? No other shots. But then there's this Gus Kuhn Commando? Signal Orange was a 1971 colour, Tangerine was an option in '74. Commando production racers (and replicas) were nearly always Yellow. Laverda SFC? I'd forgotten about those (never seen a real one), I'd considered Montjuic but they were 78-79 onwards, I think you've nailed it, they're all orange . Here you see all 3 ever built series: https://it.wikipedia.org/wiki/Laverda_750_SFC

Beautiful, a mate had a proper Slater Bros' Jota, the rumble & roar from that could pop the bulbs on streetlamps as it went past

Yes, sorry, I had it ready to upload then forgot about it.