Re: Do you lock up your bike? Some ideas here.
I went to Lowe's and got the heaviest steel chain they had. I asked for 3 feet of it, and it easily weighs more than a pound per foot. Its not getting cut by anything less than power equipment. I have a Fortress brand case hardened padlock with a one-sided key. case-hardening resists cutting. Almost any padlock can be cut with an angle grinder, but since my bike is always parked in front of my house or somewhere I can see it, I will always hear or see a thief trying to mess with it. No one has (successfully at any rate) messed with my bike as of yet.