Brake pad toe in tip
 

Perhaps this has been posted before to help with brake pad toe-in when setting up brakes. I use an o ring of appropriate thickness on the tail end of the pad while aligning and tightening the pads on the caliper arms. It seems to make it so I only need 2 hands vs 3. My apologies if this has been posted previously.

https://cimg2.ibsrv.net/gimg/bikefor...098aa1135.jpeg

Never seen it before, good tip!

What the Doc said. It's tough getting that dime to stay in place.......

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Or if you don't happen to keep O rings around, just tie a knot in a rubber band.

I've used rubber bands, matchbooks, lids from the boxes tubes come in, and the cardboard backing on the packaging the brake pads come in. Whatever is handy.