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Interesting as an academic exercise, but ultimately pointless.
I spent a large part of my youth, wringing every last HP out of various motley Lambrettas: filing ports, skimming heads and hunting down Li 150 Special gear clusters.
Only to be left with the sweet, sweet smell of Castrol R in my nostrils as I got spanked by a stock RD.
A twenty-five year old frame is going to feel like a twenty-five year old frame, regardless of what you hang off it: build it nice and ride it slow, so everyone can admire it (you)...
Right so:
Over the last year or so I go together a Dura Ace 7400 set and stuck them on a '92 Pinarello Treviso. Also a Dura/Wobler wheelset. The whole thing is heavier and more sluggish than I'd expected. Certainly less of a fun ride than the no name Aelle frame with Tricolore 600 (or older) parts that I already had.
I've been made aware that the wheels may be the problem so I suppose I'm going to change them. Maybe for some Campagnolo Zombas (I'm probably leaving the date-specific bike-owner as curator side of things behind me).
First question: Is that a good idea? Should I do that or get Mavic rims put on the 7400 hubs I already have.
Second question: Should I change the group entirely?
This question is kind of about technology and how much (and how quickly) weight improvements moved down the groups. For example, there's a Daytona Chorus group on eBay (early 2000's). Is that going to be a lighter or better group than the 7400 of ten years earlier.
And if not, what would be?
I'm not really interested in sins of anachronism anymore. But if I go mid price modern, am I going to gain over dead posh (Dura Ace) old?