As I am not a bike thief and I don’t hang around with any I am unsure about how they operate. What I am sure of is 2 of my friends had their bikes stolen last night (both bikes were in different parts of London).
I reckon as the weather is good robbers are well up for it, it’s prime selling season and they get to go out on the rob on a warm summers evening.
So people be on guard, lock it up somewhere busy, use good locks, use 2 locks, make sure their isn’t much space between the frame and the bike stand when it’s locked (so they can’t saw it without ruining the bike).
If you go down the police station you can get your bike security marked so if the police get a big haul from a gang they can track your bike back to you, it’s a free service.
And biggest thing, don’t buy nicked bikes and parts, if no one buys them, no one robs them, simple innit.