Mark Petry asked: Nobody's mentioned Campagnolo Deltas ? +++++++++++++++++++++++++++++++++++++++ As a Charter Fellow of the Center for Obscure Stuff, Mark's query got my juices flowing. The attachment bolt to center of brake pads on my common Campag Deltas is ~40 mm. Same as my really obscure Weinmann Deltas, which I actually used for years. I believe that the Shimano AX "deltas" (actually a cam brake) were shorter, but I sold mine to a list member a couple of years ago, w/o measuring them.
harvey sachs
mcLean va