Happy Valley
Active Member
There is a condition known as galling on alloy rims when use and heat cause the alloy material to gather and then embed into the rim brake pad material.
I've had this happen to two different MBs so far this year but never had it happen on bicycles before. These are decent brake pads, well up from the wear line. If you don't catch it early the embedded metal chips in the pads will seriously cut into a rim to near ruinous condition. I'm trying sanding the rim brake surface out with ascending grits of emery paper and finish with an automotive body work scotchbrite pad.
Wondering if anyone else has had to deal with this? I'm thinking it's from the higher MB braking speeds.
I've had this happen to two different MBs so far this year but never had it happen on bicycles before. These are decent brake pads, well up from the wear line. If you don't catch it early the embedded metal chips in the pads will seriously cut into a rim to near ruinous condition. I'm trying sanding the rim brake surface out with ascending grits of emery paper and finish with an automotive body work scotchbrite pad.
Wondering if anyone else has had to deal with this? I'm thinking it's from the higher MB braking speeds.