All the locks can be picked. With right tools and enough time. It's not about chip, but those holes in the key. Such locks/keys are more difficult to pick. Perhaps I didn't find the right picture.


Something like this (key in the bottom right corner):

http://www.kaba-elzett.hu/en/Product...hape-lock.html


Just make sure the cable fits tightly, so there's not much leverage for braking it.


I got some 200 euros in locks. Didn't pay that much (got on sale), but that's what I use. They last for years and years. The biggest I could carry. Had 4 bikes stolen so far, so I take no chances. They weren't too expensive, but it still sucks.

Now I make sure my bike is locked to a solid object that can't be moved/cut. Make sure it is better locked and uglier than the bikes around it.

Except for a road bike I use for commuting, but not running errands. I lock it at work place, 1 meter from security's window. It's not 100% safe, but a good chance it won't get stolen that easily.


U locks are practical fro carrying (frame mount), but offer limited choice when you don't have nice bike racks. You can't tie it to a tree or something similar. That's why I prefer a chain. Good fat chain, good fat cable, both with good locks. Locked seat to the frame as well. Made bike look ugly. Grinded with sand paper all the "shimano" marks, chipped paint (it's alu frame, won't get ruined by rust), left it dirty except for the frame.