I'm looking for a bike lock and, in 2013, Kryptonite have a new lock, the Evolution Series 4 Mini Chain:
The chain is quoted as being only 55 cm long, and 10 mm thick.
Is the blue mark below a correct interpretation for the reported thickness?
On that note:
To actually manage to remove the lock, would you have to cut through a single link completely in two places? See the red marked below:
If yes, then that would require cutting through 20 mm of manganese steel — exceeding the 18 mm thickness of the Kryptonite Fahgettaboudit that is often regarded as one of the best D-locks.
So when considering cutting, is the Evolution Mini Chain is actually more secure? (With the added benefit of being more flexible than a D-lock.)
On the other hand, if cut only once, would the chain link bend enough to allow the other to slip through?