After pressing the special connecting rivet into a campagnoloreg 11 speed chain and breaking off the pilot campagnoloreg requires the end of the connecting rivet to be deformed or ldquopeenedrdquo to prevent chain failure the precision machined park tool ct 11 rivet peening tool is used to accurately perform this critical process park tool ct 11 rivet peening tool features a dedicated peening tool to ensure the safe and secure connection of campagnolo 11 speed chains after