Is it possible to track down the source for this stem/bar in line mounting idea?
Another reason why level top tubes are superior.
Absolutely not. Bike geometry should fit people not geometric paradigms
What I mean is, nobody in their right mind would angle their bars and stem like your picture on level top tubed bikes.
For some reason people want everything to be in line with their sloping top tubes.
@Hulsroy started
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Another reason why level top tubes are superior.