CAMPAGNOLO 11v Chain Hitch Pin (5 pieces?) Campagnolo has taken note of the complaints that many customers have had with their 10-speed chains. When a 10 speed chain breaks they have to install a 4 link section which wasn't cheap.
With 11-speed chains, you simply install a new CN-RE500 Ultra chain link pin.
Simply replace the damaged links and use the CN-RE500 pins to put them back together. For correct installation, use the Campagnolo chain tool UT-CN300