We first looked at bike manufacturer Montague's Paratrooper Tactical Folding Mountain Bike a few years ago, but now the bikes are available for sale to the general public.
The 2013 24-speed Paratrooper and 27-speed Paratrooper Pro models break down, tool-lessly, in under 20 seconds. They're also designed for durability—unlike most folding bikes, they don't compromise the crossbar with a hinge, but instead keep the frame intact:
Ready to ride? Just one thing to get out of the way first:
Next question: How long before some extreme sportsman jumps out of a plane with the bike assembled, and lands with no chute on some massive halfpipe?