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In this video I replace Shimano Altus cantilever brakes with broken plastic spring covers. All three bikes I was working on had the Shimano Altus brakes with the grey plastic spring covers (BR-CT90). All of them were broken, or at least cracked. I have tried to fix the plastic collars with epoxy and model glue, but they just break again. Zip ties might work, but that would be ugly. So I am replacing the brakes with brand new Shimano Altus BR-CT91 brakes. The newer brakes have black plastic spring covers which I am hoping are stronger than the gray ones. At least they should last a while.