Hi all. I.ve just fitted the sprockets but how do you do the rivet link on the chain. I tried putting a lumphammer behind the link to peen it with a ball hammer but its not done it. I dare'nt hit it any harder in case I damage the new sprocket and I can't ride it anywhere to get it done. Any ideas anyone? Its a DID chain upgrade kit with o ring gold chain. Help.... 525 chain i think