[carlospwk]

So what do you do when the lock breaks and you can't cut it open?

Look, I could list a dozen reasons why this is a bad design but I won't. Besides the U-lock, there has never been a widely adopted tech solution to combat bike theft. Locks which release OC gas when sawed, GPS tracking, bike registers, camera surveillance etc., none of it works as well as a solid U-lock through the frame and rear wheel attached to a solid object. Only frame-based solution I'd like to see is some universal mount standard for U-locks.

The problem with reducing bike theft is that you can't do it just by inventing new locks. You need to do all of the following: reduce the need to steal bikes (eg. sane substance & welfare policy), actively police and punish bike theft, teach proper locking techniques and make online marketplaces responsible for selling stolen goods.

Out of those, teaching proper locking techniques would be the easiest to implement. People seem to have no issue leaving a 1000$ bike locked with a 20$ cable lock unattended while they go shopping but would probably never do the same with a 4k flat screen TV. Put a $40 U-lock on it properly and you just increased the difficulty of stealing by a lot: instead of using pocket fitting cable cutters, the thief now needs to make two cuts with a noisy angle grinder. Chuck in another lock and the thief will probably just find something easier to steal.