I am selling a used Campagnolo Ekar groupset, used as a 1x road groupset, in like-new condition; you don't need to replace anything.
Complete with crankset with 170mm crank arms and a 42t chainring installed, but I also have a 44t chainring that has been used very little.
9-36 cassette.
Chain replaced recently.
Shift levers in like-new condition.
Brake calipers with almost new brake pads, and I am including 2 pairs of brake pads still in the box that I had as spares.