Like Andrew pointed out, that's not the type of connecting link you'd normally use on a derailleur-equipped bike. The clip that holds the removable plate on makes this link wider than the rest of the chain and it's likely to rub or bind on cogs and derailleurs. If you were going to use a "missing link" on a Z50, it would be like this one. Otherwise, use a chain tool to push out a pin and reinsert it to connect the chain. That's actually the expectation with the Z50 since it doesn't come with a connecting link.