Funky Steel Frame Designs

[Canuk]

Early '90s Hopmans "Granchio" frame (seller photo; but my frame).

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Note: I personally never understood the reason for a curved top tune. All it does in my opinion is to add weight as I see no aerodynamic or structural value that improves the frame's inherent performance/efficiency.

Can someone with framebuilding knowledge enlighten me as to the benefits other than aesthetics (especially on a track frame)?

A curved top tube is really just for show! A curved seat tube is fairly practical, enabling the wheel to be as tight to the frame as possible and hence a shorter wheelbase.

 

[Canuk]

In France they call them 'cadre plongeant contre la montre'

 

[Canuk]

Dave Lloyd Concept in Team Telekom colours

 

[Frankenorange]

Obree was barely mentioned, and of course Boardman getting all the plaudits.

but Obree has a very good film about himself. Boardmann is way too dull and boring for that.