The red 500 @ 4 mins 13 secs - horizontal twin, similar to the Aermacchi based Linto but 63 is too early for this. Looks like it might be based on the 250cc Motobi engine.
I think it is the Reima 500 built by Rene Maltry and Hans Georg Reiter
https://cybermotorcy...c-Reima-500.htm
https://www.motohist...-1_content.html
Anyway a far call from MotoGP today, not a laptop in sight
Edited by tonyed, 14 December 2022 - 16:24.