Originally Posted by
jgedwa
That is a lot of play. ..I think it might make for a pretty noticeable shudder under heavy braking force.
Don't know about shudder, but I had a bike with near-terminal brake squeal that didn't go away until I did something cruel & unusual to cure the brake play.
Originally Posted by
jgedwa
It could be the post itself if worn down?
I've never seen a canti that pivoted against the post itself. Of all the ones I've pulled apart, or seen pulled apart there's always been a bushing (or two) in the brake arm. The bushing gets clamped firmly to the post, and then the brake arm pivots against the unmoving bushing.
There might be another bushing or sleeve thingy pressed in the brake arm as well to act as a bearing surface between the bushing clamped to the post and the brake arm.
Originally Posted by
jgedwa
More likely the brass bushing that rides on the post is worn, and so new canti's would solve it.
My bet is that these brakes have always been sloppy, even from assembly. Considering the surface areas, type of movement and forces involved, 1/16 is a huge amount of material to wear down.