Bike Friday Crusoe

Bike Friday Pocket Crusoe, sport bike, circa 2005 vintage;
kerb weight 20lb. Full spec's from http://drrw.net/bikes/Bike-Friday-Pocket-Crusoe-Specifications.pdf

Interesting to compare to Tern Verge X20 - almost identical weight, wheelset same weight/build quality, titanium cassette, but sorry Tern - you are not the fastest folding bike - this Crusoe will smoke you on top speed with the gearing being 25% higher on this bad boy!
http://www.ternbicycles.com/bikes/verge-x20

Another bike in the same class is the Allen Sports Ultra-X Carbon folding bike: http://allensportsusa.com/products/folding-bikes/ultra-x-gjecssrej1jr (no longer available)

2018 uploaded latest with new 30mm aero rims rebuild on SparCo hubs. Fantastic handling.