If I have to park a bike in an area where I need a better lock, I am inclined to ride my Bridgestone instead.
When possible, if riding in what I consider high theft risk areas I either:
- use my old utility bike, with 3 locks, a frame lock to immobilise frame-rear wheel, a heavy chain to lock front wheel and frame to a post or similar, finally a small cable lock to lock my old home-made pannier bags to the rack. This bike has low theft value - well worn leather saddle more than 30 years old, obsolete 5 speed hub gear, old TA cranks, pedals from about 1980, etc.
- or I take my lightest Brompton folder, and carry it with me wherever I go (into the shops I visit, or to meetings, etc.)
I do have a reasonable quality Abus Granit Futura 64 U-Lock, which I use occasionally for parking one of my Thorn bikes, for example when shopping on tour.