I think Campagnolo cheated to fit the extra sprocket in. This can lead to the chain hitting the spoke shoulders, while on the biggest sprocket. I had some BB/sprocket spacers lying around from a VeloSolo multipack I bought. The thinnest of which should solve this without causing the chain to hit the seatstay in the smallest sprocket.
I've probably got a couple more, if you need one chucking in the post Ben.
I think Campagnolo cheated to fit the extra sprocket in. This can lead to the chain hitting the spoke shoulders, while on the biggest sprocket. I had some BB/sprocket spacers lying around from a VeloSolo multipack I bought. The thinnest of which should solve this without causing the chain to hit the seatstay in the smallest sprocket.
I've probably got a couple more, if you need one chucking in the post Ben.