I married a math teacher so I wouldn't have to think about those details Jeff! /bcforum/images/%%GRAEMLIN_URL%%/grin.gif
Yeah, 16mm of the caliper halves (16mm worked on the mounts too), but I did them by feel because I couldn't see them directly.
The bottom nuts for the pipe are somewhere between 9/16 and 5/8. Sorry, were somewhere between. The new pipes have the same size nut too, just a hair wider than 9/16.
Clearly I'll have to get some metric wrenches anyway because I won't be able to put the new pipes on with a death wheel. I'll let you know.