WOW, that tunnel is WIDE, and the tank too.. how wide is that thing?
I am working on a slim tank design, and the tunnel will be difficult..
I have a 72 750 tank sitting beside the 78 frame, I will try it later, and see where the mounts put it. I may not have had the rubbers on when i tried the 500-4 tank, but did with the 400-4.. Maybe all superspert are common, but diff from CB?
I am not saying the tanks interchange, there is clearance and rear issues, but the front seemed to go on.