Jerry thanks for bringing the tube dia. to light for me. I remember trying to get a few threads started on the cable clamps,but, that was before I brazed on top guides. That may be why a French Frame,just looks RIGHT! Smaller on lower tubes and larger on top,and presto ,it's balanced perfectly visually. I could usually pick out a a frenchie hanging on a hook,but,never knew why. Bob,sorry if I mislead you. Dickey