I use a sturmey-archer X-FD front drum
3rd bike it's been on !

I have seen people use a bmx-type front caliper as well
(the kind that bolts to the fender mounting hole on the forks)

__________________
Bill (aka azbill, aka azkronic)

yesterday is history,
tomorrow is a mystery,
but today is a gift...
that's why it's called "the PRESENT"