One of the sayings I find amusing is that "Your lock gets heavier as your bike gets lighter", an acknowledgement that lighter bikes cost more and require heavier locks.
I lock my (very expensive) bikes out on the street fairly often, though never overnight. I only ever use 1 lock and a component protection system.
I use the Kryptonite New York Fahgettaboudit it secure the frame to some fixed street object of equal strength (newish iron railings are good, otherwise some London lamp-posts will fill this lock so perfectly that there's no leftover space for a leverage tool).
I lock my (very expensive) bikes out on the street fairly often, though never overnight. I only ever use 1 lock and a component protection system.
I use the Kryptonite New York Fahgettaboudit it secure the frame to some fixed street object of equal strength (newish iron railings are good, otherwise some London lamp-posts will fill this lock so perfectly that there's no leftover space for a leverage tool).
https://www.kryptonitelock.com/OutletProducts/Products/Produ...
I pair that with Pitlock to protect the wheels, though will be moving to Atomic 22 when that system is fully released.
http://www.pitlock.com/
http://atomic22.co.uk/
And my saddle is secured by a chain that goes through the rails and chain stays.
http://www.lfgss.com/thread52914.html#post1705205