Originally Posted by
NeoteriX
On another note... why aren't people locking the bikes folded up? In many cases you'll have the front and rear wheels overlapping and can lock everything up with one lock (the seat will be an issue though).
I think that is the best advice for the OP (if the security need beyond a frame lockup exists). Simply folding the main frame hinge should work to capture both wheels with the right lock.
On my Dahon I use a lightweight TiGr lock strapped to the boom. It's easy on/off, and long enough to do the fully folded lockup when needed, and no lock is lighter:
