Yes, that was true in my experience too.

When the Teledyne Titans arrived, the scale got redistributed.

It was pretty easy to get a Titan to 18 lbs.

One client got under 14. It took quite a bit to get to there, Art Stump milling, ti chain, Aluminum freewheel, Cool Gear plain plastic saddle, 28 hole wheels w/ ti spokes, 195 gram Clement tires, Weyless parts... about the only place where he did not go absolute lightest was no Huret Jubilee drivetrain. He stayed Campagnolo.