Nice! What's it weigh?
C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport/Qualifier,Brompton S6L,Dahon Speed Pro TT
in current configuration (capreo front hub, capreo rear hub and gears, dura ace RD and crankset, brooks saddle, tektro calipers, sturmey shifter, gran compe brake levers), the weight is 8.8 kilos (19.4 pounds).
the panasonic traincle, they say, was (maybe still is) the lightest folding bike in the world.
As far as production bike weights, quite a few recent Dahons have weighed less than the Traincle - I believe the Helios XX weighed at 7.8 kg w/o pedals. Custom, you can always get a Bike Friday Super Pro which probably dangles around the 15 lb. level depending on size. But this Triancle is an awesome bike, and I'd imagine the ride with ti is pretty nice.
i will probably bring the weight down some more if i change the saddle and the wheelset (the original ones were distorted so i had to replace with a new 14 inch wheelset). i also read that the tires and inner tubes (panasonic brand) were made specifically for the traincle that it was lighter than any 14inch ones during its time. maybe i should search harder for those tires and inner tubes.
this is very cool. i wouldn't change anything on it except the saddle (selle italia ti rails maybe) and the tires. apparently, the original tires sacrificed durability for weight savings. akamatsu had a self-branded run of these made by panaracer with improved durability. they sell them and so does wadacycle.