I've got an early to mid eighties Motobecane Mirage, on which I've upgraded everything but the frame. I'm unapologetic, unabashed (I know where I'm posting this) and thrilled with the results and love the ride above my newly manufactured road bike. With the new Wheelset, I've surpassed my goal weight: a svelte 23.5 lbs!
I've got a question about the frame itself - more than any bike, particularly newer bikes, I've realized a rather dramatic weight differential between the front and rear in the frame itself. lbs guy, more a wheel guy, was pretty sure that all of the tubing was chromolly (Motolite?) except the seat tube which may be a cheaper heavier grade.
This is for curiosities sake. Any info mid-eighties Moto frames would be appreciated.