[python] Re: lean steer trike

On Thursday, December 18, 2003 4:08 PM <spartansmoke@xxxxxxx> wrote:
> >
> >It is interesting how they made the front section around the
> >wheel with a single cromoly pipe.  Also notice that it extends
> >ahead of the pedals for a headlight mount.  Would there be
> >a reason not to do this with the Python design?
> 
> Hillel,
> 
> As I see the picture of Bob's trike I think his idea of the extended front 
> boom is most likely to foot protection in the event of a frontal crash, but 
> I can certainly see how it could work very well for mounting lights.
> 
> As for being able to do this on a Python based design, I don't see why it 
> wouldn't work quite well.  I should have my python completed sometime in 
> January and I will see if I can incorporate something like that into the 
> design.

In Bob's trike the front section is part of the seat frame.
What size pipe does it look like?  I don't know if the Python 
design requires a little more vertical stiffness.  I don't think 
it should matter if the welds are good.

Another thought is that the original design using bar stock
is forced to set the steering pivot (BB) at an angle that is
perpendicular to the bars going forward for the front section.
If you use a rectangle from round pipe as the front section,
then the BB used for the steering pivot can be at any angle,
even less vertical like the flevo-bike, and the pedals can
still be wherever you want them.


---Hillel

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