Brake calipers front /rear specific?

[cyberknight]

I dont think they are but i got a pair of sora calipers a while ago that i intend to fit to the commuter and they look the same to me .

 

[oiljam]

If my memory serves me right, I fitted some of these a while back, the bolt that goes through the frame/fork will be different lengths

 

[GrumpyGregry]

The threaded bolt maybe the same but often the tophat threaded nut is different length. I think campag ship them with several different sizes.