Good stuff from the comments:
Wil Ames wrote: Only a limited number had red frames (maybe 50?). I believe the majority of V7 Sports had a black frame.
And Crilles wrote:
Only the Factory Racers (Telaio Rosso) had the red frames.
I believe a small number was also produced with silver frames, whilst the majority of the V7 Sport and the 750 S (sold as V7 Sport in the US) all came with black frames.
Among the not more than 200 Chrome-moly red framed factory racers produced – only 1000-1200 have survived…. (o;
A V-7 and a Lemans. And there’ll be more on that Morini 3-1/2 shortly. Stay tuned..
Question… not sure about the black frame paint on the V7. I thought they had red frames? Any purists out there shed some light?
Motorcycle Photo Of The Day 
Ahhh… spaghetti-pigs or Hillbilly Harleys (you put the motor in wrong, yuk-yuk-yuk) I love ’em!
Only a limited number had red frames (maybe 50?). I believe the majority of V7 Sports had a black frame.
Only the Factory Racers (Telaio Rosso) had the red frames.
I believe a small number was also produced with silver frames, whilst the majority of the V7 Sport and the 750 S (sold as V7 Sport in the US) all came with black frames.
Among the not more than 200 Chrome-moly red framed factory racers produced – only 1000-1200 have survived…. (o;