I lock up my bike all over the city. And I want a quick way to secure it. The bike isn’t expensive or specially attractive. But I want to deter casual thieves whilst having a convenient solution. Currently I have a 1.8m, non coily cable type lock that can go round trees and through frame and wheels. I’ve been considering a chain type, but that is harder to poke through spokes. And finding one long enough is not easy. Carrying it when riding should be easy too. Any tips appreciated.
D lock through the frame and rear wheel to the thing you’re locking to and a cable lock through the front wheel and, if quick release, the seat rails. Worked for me for a long time.
Basically make it harder to steal than the one next to it.