Campag have different spline patterns so are a no go, but they are spaced basically the same as shimano so are interchangeable in that sense, so he could possibly use an adapted shimano cassette with his campag shifters/derailleur, assuming there is clearance for the derailleur at the disc end.
Campag have different spline patterns so are a no go, but they are spaced basically the same as shimano so are interchangeable in that sense, so he could possibly use an adapted shimano cassette with his campag shifters/derailleur, assuming there is clearance for the derailleur at the disc end.