I don't have the Cycling plus article in from of me (I bought the magazine issue with the lock reviews in it last spring) and I haven't been able to find it on line. But I do remember that the Kryptonite NY U-Lock took the longest to cut, BUT you only have to cut one side and can swivel the hasp around to open it. One of the other European locks (Abus Granit U-Lock or maybe On-Guard) was cut a little bit quicker, but you have to cut both sides to get it open (or maybe you could jack it apart with one side cut).

The reality is that all of the top of the line locks can be beaten, certainly all of the bike locks anyway. But it will take a bit of time, noise and determination to do it. You are just as likely to lose your pedals, saddle or some other easily removed part. I have an Abus chain, but it's too heavy and awkward to carry.

If there is a cable that is just about as theft-proof as the best U-Locks, light enough that you will carry it, and you have more options for locking it to something bigger than a parking meter or fence pole, then I'm interested in it.