Are you talking about this?
I have a 6 speed mtb bike with these but have no idea how to repair them. It has an arm screwed down to the front fork and rear frame making removal quite difficult. If they are some sort of primordial disc (reliable?) brakes then I need to hunt the vintage bike yard for a winter build.
Originally Posted by
fietsbob
Drum brake hubs.. they have been reliable for 40+ years..
friction material surface in the shoes is large , so don't wear much at all..
I built wheels for my winter MTB build .. studded tires.. from Finland..