Funky Steel Frame Designs

[Canuk]

@Canuk I do not personally own any Zunow bikes, but would like to if not for cost.
My only "crazy" Japanese frame that I ride regularly is a rather pedestrian looking Nishiki compared to others shown here.

View attachment 999341

That's a very nice frame did you import it?

 

[Canuk]

Quite like this ice bike from Sweden

 

[Canuk]

This kind of groovy

 

[Canuk]

Bottechia Kronotech Concept

fully-faired frame for maximum streamlining
continuously variable transmission
estimated price: $20,000
down-tube shift lever
integral computer
never produced

 

[Laldi]

Loving the Saxon twin tube, hard to find nowadays.

 

[Nob]

Mosers 1hr record bike

 

[Nob]

 

[Jesper]

Interesting "ice" adaptation. Probably not too much fun in cross winds. We took old tires and screwed sheet metal screws through from the inside; worked okay except cornering.

 

[Jesper]

That's a very nice frame did you import it?

I have a couple of those Nishiki bikes. They were marketed in the US so available "locally" in the western US (originally American Eagle, then Nishiki; by West Coast Bikes). That frame '86 ('87 model year) made by Kawamura.

I do have a Hopmans lo-pro (nos frame not built yet) stored away so I'll see if I can find photo of it to represent.

 

[Jesper]

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



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)?