Shimano Cantilever Brake Spring Retainer

thingiverse

This is just a copy of @chriskmurray's non-adjustable retainer with positioning nubs added. I had to add nubs (I oversized them to err on the side of robustness) to the back of the non-adjustment retainer so that the retainer and spring would engage properly with the lever. I think I ended up having to mirror the part as well for proper alignment. To get the adjustment side, visit @chriskmurray's link. This fits Shimano BR-CT90-M cantilever brakes. it may fit other Shimano cantilever brakes, but I've only used it on this set.