Originally Posted by
DaveSSS
Yes, the procedure is not the same, if the chain is broken and rejoined.
All it means is the flared end of the new joining pin provides enough strength to allow it's use in a hole that's had a pin pushed through it, whereas the old style that relies ONLY on a interference fit with hole will not. It would be stupid for Campy to put a zip tie through a pair of plates and insist that it be used for the initial chain joining, if that pair of plates had a peened pin pushed through it.
So you are are saying that the 11s chain comes with a ziptie denoting pristine holes through a pair of plates on the end of the chain.
If the loose pair of plates have pristine holes as you say, this means in manufacturing, Campy employs a separate station to add pristine plates to the end of the chain. If the chain is made continuously, there is no way for Campy to create loose plates with pristine holes otherwise. Reeming the holes if having a pin pushed through plates to break the chain would create holes larger than a peened pin pushed though the hole. This would of course mandate a different pin size which isn't feasible. Further...this added operation of course elevates Campy manufacturing cost for the chain...by having an added operation to add two loose plates on the end of the chain with pristine holes. Honestly this added operation seems suspect to me...but if you say the holes don't appear as though a peened rivet has been pushed through them, I believe you.