Originally Posted by
Grand Bois
I used a 30 mm nut on the bike above's fork after drilling it. Both of the brakes are rears that I found at a bike swap. The fronts were probably used for fixies. I had to shorten the 30 mm nut to keep it from bottoming.
Yes, the very long front nut will probably have to be shortened a bit to keep from bottoming even on a rear brake's short bolt. How did you adapt the rear brake? I've drilled out the front hole of a brake bridge using a short 5/16" bit clamped in a Vise Grip and turning it a fraction of a turn at a time. It's laborious but does work and allows you to keep the bit 90 degrees to the hole.