Originally Posted by
dsbrantjr
Check and remove the shards from your brake pads more frequently, like when you start hearing metal-on-metal sounds.
Also, maybe try softer brake pads. The pads that came stock with my Shimano brakes were tough on my rims so I switched to to softer koolstop pads. I have used black, salmon or combo pads and hardly ever find bits of metal in them.