I've now got enough bits to build my F1, and enough parts to make a cafe racer from the mortal remains of the F2.
Thinking about swapping in a K7 rear wheel and swing arm.
Just need work out the geometry for the pedal and linkage.
I'm assuming that as the F2 frame and the K series frames are not too much different, that if I put the pivot point for the brake pedal in the same place as a K, things should work out OK.
Except that I need to find a dimensional drawing for the K frame, because I don't have one to copy from.
Any of Honda's factory blueprints available online anywhere ?