Bests & Worsts Reviews from Amazon

I just received this lock today and was heavy! (15½ pounds!) While I was unlocking my bike a guy came up and tried to mug me at night at 8 PM. This guy came up to me with a knife and said give me your stuff. Before I turned I said " Oh yeah?", I then proceeded to grab the chain and lock and started swinging violently and said " What now mother f****r!", the mugger got scared , dropped his knife and ran away. Pros: Strong Cons: Bulky , Heavy (15.5 pounds)