• Surely sealant will seal them?

  • Well, I'd hope so but it might result in sealant sprayage, and having covered the living room in Shimano mineral oil (always remove the bung from the cup screwed into the shifter before trying to push mineral oil up from the caliper into the cup, top tip), I'd like to try and avoid that. I suppose the question is really whether it's worth trying to patch it first on a belt and braces precautionary-principle basis first.

About

Avatar for Brommers @Brommers started