The Bell® Catalyst™ 600 Folding Lock offers portable protection. The folding design reduces the amount of space needed for storage and transport. The incldued carry bracket can mount anywhere on your bike so you're never without a lock. The 6-bar design allows you to lock through the bike frame and rear or front wheel plus a sturdy object. An independent lab has rated the security of this lock a 3 on a 5-point scale.