When you buy your chain kit or just the chain make sure you buy a couple extra master links. Reason why I say it is because when I was riveting one of the two pins it cracked a little on the edge/lip (nothing to be concerned about but I like my things perfect and better be safe than sorry so I disposed and used another one). Maybe the materials are not as good as for example DID chains (worked perfectly the first time on my other bike) or I happened to get a defective master link? Who knows! Buy a couple so you don’t have to wait a few days to get a replacement if this happens to you as well.