I recently moved away from NYC to the suburbs. In NYC, I always locked up my bike with the New York Lock, which is a super heavy duty U-Lock. With a plethora of signs and parking meters, NYC works amazingly well for a U-Lock. Now however, the security is overkill and also there's very few signs and no parking meters in the suburbs. I find that I spend at least 10 minutes when I get places trying to identify a U-Lock compatible location to lock up.

I'm looking for a bike lock that isn't a U-Lock but is still fairly secure. I might not need such high security still, but you know the old saying... (You can take a man out of the city but you can't take the city out of a man.)

My one requirement is that whatever chain/cable lock I end up with needs to have a mount for the bike. I don't want to be carrying this or draping it on the bicycle.

I've found tons of cheap, really insecure locks with mounts. I can't find anything that's both secure and mountable.

Cost is no obstacle here. A bike theft would cost much, much more.