Originally Posted by
RubeRad
Two methods for opening quick-links if you don't have the dedicated pliers.
Slack onto the chainring and tap, or (from legendary framebuilder
Dave Moulton's blog), two thin screwdrivers:
Speaking of Moulton, I linked his homebrew
headset press and remover before, but I also just discovered his
homebrew hanger alignment tool. Basically get 13" of 3/4" steel scrap, drill a hole through it, and bolt it onto the hanger with a long enough M10 bolt. Lever as appropriate until the arm is the same distance from the rim in multiple locations.
I hate quick links, and am having trouble finding chains without them anymore. And thanks for this tip.