I'm surprised there isn't a thread about this already - I would think it would be an appropriate discussion. Anyway, I live in NYC and have an Origami Cricket 7. Due to the unusual size and build of folders, wondering what you folks use to lock them up? Here in NYC, it's a serious issue as bike thief's supposedly have no problem getting through most locks in no time. I was thinking that while there is no lock that can guarantee 100% security, some are better than others. Also, with a less expensive bike, it makes little sense to spend a ton. What say you all? I have heard that Kryptonite makes a good U lock that is smallish. Anyone have any recommendations?