I get the ‘separation anxiety’ when the bike is not in sight :-)
If they want the bike, they will have it. So, for the ‘opportunist’ thief, almost any lock will do - why work at it when there is another bike further on?
Yup, I know that feeling!
I have
this simple frame lock on mine in case I have to dive into a loo or shop….a bargain price *with* cable, & the key is always with me. Under no illusion that it is a good lock, but the best lock is one you have and use 😉
Also cable-tied
a very cheap alarm like this under the saddle. Again, it might stop a opportunist thief, make them move on to the next bike. Not obvious where it is, quite hidden under the Brooks saddle, but makes quite a decent noise if the bike is moved, at very little weight. I’ve managed to lose the plipper, mind 😳
If I had to cycle somewhere and leave it, I do have a hefty D-lock.
Have a pal who cycled everywhere….he once locked his bike to a solid ‘Sheffield stand’ frame in town whilst out for a show….came back to find the bike frame
bent around the stand by some odious oik who clearly didn’t like the fact they could break his lock 🙄