Locks that work

or have a look at these from the torc-anchors guys.

i got my bike chain from them. good guys, good and honest service, good prices, too.
sold secure gold(bike)/silver (scooter) should do it for me.

for paranoids go 13mil and you'll sleep better.

Sorry reeen, but what you're recommending is directly opposite to what this thread is about, and the recommendations and discussions on page 1 of this thread. As already discussed, 9, 10 and 11mm chains are specifically recommended AGAINST, as they are relatively easily defeated by hand powered bolt croppers.

This is why only 16mm chain thickness are recommended, as they have not been cut by hand powered bolt croppers. In fact, Almax have a video showing how easy it is to cut chains with 11mm thickness. Again, its in the first post of this thread.