Originally Posted by
FBinNY
Yes, KoolStop has inserts for these holders. You might also use some Scotchbrite abrasive pads to sand off the loose stuff on the rims so the replacement shoes don't load up so quickly. But don't get carried away trying sand the rim smooth. Your goal is to slow down the thinning of the rim, not speed it up.
Those look like tektro brakes with the ****ty stock pads. Replace with koolstops, or better yet swissstops. Koolstop is going the way of the dodo.