Hi Bri

I think most after market clip ons have 2 or 3 pinch bolts,
but the vf500 ones have one pinch bolt & then use the head of a capscrew underneath the clamp to locate in a hole in the top yoke, like a peg in a hole.
I'm still using the vf bars, cos now i'm on with the new front end - i've ditched the zzr fork idea (theyre too short)
and now i've got some gsx750f forks & these come with damping adjusters too.
i'm fiting gsxr600 bars to these with an adaptor tube.
the cbr600 back wheel transplant has already transformed the bike - it feels so secure now - much less skittish, can't wait to get the front end in & have some real brakes too lol!