I used to use an on guard beast chain (pretty much equivalent to the NY lock) with a masterlock padlock. I decided to buy a krypto evolution mini to lock up my wheels and realized carrying both of these locks was far too heavy. So I've cut my beast chain in half (took about 5 minutes with the angle grinder) and bought the heaviest burliest padlock I've ever seen ( www.unbreakable.com ). The combo of tiny U lock, and gigantically strong chain and padlock should put most thieves at bay...