I’ve def had a few worried moments with Bettie, that’s a big investment for a crack head to ride off with and use a cable lock, plus disabling the motor. Bettie usually attracts a crowd so that’s a deterrent. And, as Mark V noted in his post, in Japan theft isn’t a problem and we learned that as well in Beijing. Thanks to Scott for the tip on the post.
Also see a short film on the bike locking ability of New Yorkers.