I think it was
evan that said bike_weight + lock_weight = constant.Anyway, that expensive lock is vulnerable to the Bic-pen exploit. That's right, you can open it with a pen. I tested it myself... not too hard, once I figured out which way to turn the thing.
So I guess starting the 22nd Kryptonite will offer some exchange program, if any of you guys care, or have been living under a rock for the past week and missed boingboing, slashdot, etc....