Need new chain for Regina 7 speed
I just got a used bike with a Regina CX/CX-S 7 speed 12-23 freewheel that has a Sachs/Sedis chain. The chain could be 2 years old or 10. I don't know.
Does it matter what brand I get to replace it?
It's a Campy double in the front and Campy derailleurs.