Dahon Formula S18 - fast and tough folding bicycle

http://www.nycewheels.com/dahon-folding-bike-formula.html

The Dahon Formula S18 is definitely a fast folding bicycle but it has a lot of cool features that other folding bikes miss. First off - disc brakes. This is huge because it makes the stopping power incredible. Also it has 18 speeds which gives you plenty for steep hills and going very fast.