Locks that work

Today saw police holding onto bicycle and cut lock in the Bank area around lunchtime. From what I could make of it, the thief must have been spotted an ran off leaving the bike.

The point to this is, that the lock they were holding was cut clean through the middle and looked exactly like the 13mm hardened ABUS d-lock that is mentioned at the beginning of this thread. So best to be aware of this if you own one.

Frankie, since there is only one 13mm lock recommended, amongst the sea of 16mm/18mm locks, its obvious that you mean the Abus Granit X Plus 54. Abus do a range of locks that are the same size and dimensions, but its the squared bar that truly identifies it as being the 54. Did you manage to see if the bar was square? Otherwise, it might have been one of the similar but less effective locks from the Abus range.

Abus locks from same range as the Granit X 54:
http://www.abus.de/us/main.asp?ScreenLang=us&sid=424602687074737210120101492545124&select=0104b01&ArtikelGrID=1

Or maybe the Abus Ketaro:
http://www.sjscycles.co.uk/product-ABUS-Abus-Ketaro-505--230-mm-D-Lock--Sold-Secure-Silver-Standard-19583.htm