Originally Posted by
unworthy1
"The retaining hole (was) there for a reason."
Yes but that reason was sensible only with the Modolo "pro" style holders which use long bolts instead of these "Sporting" and perhaps "Flash" model holders that have a stud which appears to be unnremoveable and nuts that screw over the external ends of the studs. These Kool Stop pads were not designed to work with such holders and they don't, unless you resort to gross modifications.
Ah, thank you, I see that now, nuts on studs and not bolts like my current cartridge pads. Perhaps slot was necessary. I would first have tried cutting a ramp (bevel, 30 degrees from long axis) on the inserting side of the pad, lube everything with dish soap (will rinse off with soaking), then try pushing them on by hand or by pushing the two parts together with a vise, carefully, until *pop*, the hole pops over the stud. Removing them will be more difficult.
My modern cartridge pad holders, use a bolt into a recessed plate, the bolt should not protrude over the plate. It's the *tiny* retaining screw aft that holds the pads in place, thus, I can remove, clean, replace pads without having to readjust the holders. These are road pad holders, I used much longer bolts and concave/convex washers to use them on V-brakes.