please be aware of whether you have a non-reusable or a reusable 'MissingLink' connector. A non-reusable one has to be replaced once opened, while a reusable 'MissingLink' can be opened and closed as many times as you want but must be discarded when the chain is worn. Please note that all e-Bike chains are equipped with a non-reusable 'MissingLink'.