Removing Play in Worn Cantilever Bosses
I've an old Raleigh Elkhorn which has non-removable Canti bosses front and back. The arms when mounted, front and back, seem to exhibit a little more play than they should. That is, the outside diameter of the bosses are smaller than the inside diameter of the arms by a margin that seems greater than acceptable. I've dropped on identical arms that I had as spares and there appears to be the same amount of play to confirm.
This extra play makes it more difficult to set up your brake pads to the rim because you have to adjust them for a "dynamic" finishing position on the rim ahead of time (i.e. when the pads grab the rim, they "rock" from front to back in the direction of wheel direction) otherwise the back end of the pad will wear first.
Sooo, anyone ever had this problem before? I was thinking about obtaining some 0.001" brass shim stock to take up the slack.