Hi. This might be a bit of a rhetorical question in the CV forum but while looking at the Rivendell website (a bunch of nice bikes by the way) I was thinking is there any substantive difference between the production frames they offer and say a vintage Trek/Raleigh/Schwinn(Paramount)? Lugged steel, handmade, relaxed angles, clearence for fenders/larger tires are charateristic of both types of bikes. Aside from some issues like braze on's & modern drivetrain (which can be easily adapted on an older steel bike)I can't see the rationale. Anyone care to enlighten me as to what I am missing?