This question is not quite a frame building question, and yet, entirely about the why's and wherefores of caliper location on modern frames, so if need be, please delete or move the thread!
So, my wife and I have only recently made the transition onto frames with disk brakes (her commuter, and our/my tandem). On both frames, the caliper location is within the rear-triangle (on the chain stay). However I see "older" bike frames where the caliper location was outside the triangle on the seat stay. So why has this changed? I mean, am I asking a religion question, or is there a structural / mechanical reason to have moved the mounting point?
thanks for all you're combined wisdom!