Bike & Frame Weight

The Pergotti Respondium is made from Stainless steel (columbus XCr), and is one of the lightest steel frames around (maybe). 1.7Kg for a 54cm frame. So a 1.8Kg frame is no slouch.

The lightest steel frame I know is 1.1kg, and it's a Barra 1936 cyclotourist frame.

or 2.2kg with fork, botto bracket, crank, headset, braze on. (made from Reynolds H.M. 3/10mm.

fully equipped cyclotourist bike; 7.960kg

unfortuantely I can't find it when I look at the Google of the world, only in a magazine, but will scan article if anyone is interested.

edit - found it;

http://www.vintagebicyclepress.com/images/vbq13coverMR.jpg