I had an old-style long nut/bolt fixing and just made the hole in the fork crown bigger so it could take a new caliper which uses a recessed allen bolt. Not sure if this is the problem you're having but it seemed to work - probably not a good idea for halfway decent forks mind you.
I had an old-style long nut/bolt fixing and just made the hole in the fork crown bigger so it could take a new caliper which uses a recessed allen bolt. Not sure if this is the problem you're having but it seemed to work - probably not a good idea for halfway decent forks mind you.