After pressing the special connecting rivet into a Campagnolo 11Speed Chain and breaking off the pilot, Campagnolo requires the end of the connecting rivet to be peened or deformed to prevent chain failure. The precisionmachined CT11 is used to accurately perform this critical process. Note The CT11 will not install or remove chain rivets. Its sole function is to peen and secure the end of the Campagnolo 11speed connecting rivet. The Park Tool CT4.2 Master Chain Tool or previous model CT
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