Are all cb750f forks interchangeable?

[ChrisH]

Hey guys. Building a 76 cb750f in to a cafe racer. I’m trying to keep as much of the vintage look as possible and would like to add a dual disc set up. I know the 77 & 78 came factory as that.

Can the 77 & 78 forks be directly swapped in to a 76 chassis? If they are, can I still run the factory wheel/hub as well?

 

[jpdevol]

Another dual disc bike of the era - that did have a 40 spoke hub, rather than Comstars - was a '75-76 GL1000: might be a conversion candidate.

I can't recall if the '76F hub was drilled all the way through to accept the 2nd disc - with longer bolts (the Goldwing was).