11,5 Kg = 25.35 lbs.

" Most Dahons under $600 don't stay folded easily, they don't roll when folded, the gears are on the outside when folded which makes it tough to carry, among other things"

Alas, Sir, you appear to be the a victim of a prank.

However, have a look at the skinny Downtube Nova. It's skinny.