[jyl]

Mine currently weighs 19.5 lb with all Super Record, Fiamme Ergal rims, tubulars, Brooks saddle with Ti rails, hollow pin steel chain.

One could:
- swap for a 200 g saddle (-250 g, all rough estimates or guesses here)
- all-alloy freewheel (-150 g)
- lightest tubulars (-100 g)
- thin butted spokes and alloy nipples (-160 g)
- lightest period bar and stem (-50 g guess)
- Ti skewers (-50 g guess)
- Ti and Al bolts everywhere (-100 g guess)
- cut post and stem short (-50 g guess)
- titanium chain (-80 g guess)

That's about 2.2 lb. Still 17.3 lb, rough estimate.

Maybe there are a few other things possible, like CLB aluminum cable housings or finding the rare Super Record hubs with Ti axles.

But I don't see how to reach 16.2 lb without replacing some of the Super Record components, or serious drilling and milling. Maybe he started with a 753 time trial frame which is a bit lighter than the 753 road race frame. Filled the tires and frame with helium. Dunno but I'd love to have the money and time to try it.