Still going over my recent bike purchase. Realized my rear caliper isn't working correctly due to a sticky rear brake cable. It does not slide free at all.
It looks new so I question whether the previous owner used an incompatible inner and outer cable pairing.

The front seems to be older/dirtier but works fine however I was thinking I might as well replace that one if I am going through the trouble of doing the rear.

One question...do modern brake cables like shimano and others fit the campagnolo brake levers?