The advantage of chain locks is obvious: no matter how angled and tricky the connection possibilities are, due to their flexibility there is always a way to lock the bike. In addition, chain locks, depending on the security level and material thickness of the chain links, offer the highest level of security against bicycle thieves. Like the new cable lock series or the new folding locks of the COPS series, the new chain lock series comes in a new and noble design without neglecting the proven Trelock security and quality.