[python] Re: Climbing and test rides
- From: "25hz" <25hz@xxxxxxxxxx>
- To: <python@xxxxxxxxxxxxx>
- Date: Sat, 16 Apr 2005 20:45:34 -0400
...
> > seat at 32 or 33cm. The seat position of the python is similar to that
on
> > high racer recumbents, so, as long as a functional BB to seat
measurement is
> > maintained, has anyone come across any good reasons to have a low python
> > aside from possible aerodynamic advantages?
>
> Well it seems to be really important to be able to touch the ground
> easily, and it might make a difference when looking at that. But
> actually I don't really know at what heights this starts to matter.
> I'd guess somewhere around 35 cm.
>
> Sam
Doh! Pretty obvious - not sure why I didn't think of that. :) With regards
to getting your hands on the ground, I think I came up with a fix, even for
taller pythons where you can't get your hands on the ground anymore.
I modelled a three inch extension for my python (maybe make it 4 inches on
the real thing) and added handle bars that incorporate both a temporary
steady stand for stopping (if I can't reach the ground) plus by pulling back
further, it turns into the center stand. It's a simple over-center spring
loaded lock that both pulls the handlebars down and forward for riding, plus
keeps the bars at full "up" position when the center stand is deployed.
http://bikes.jkcc.com/python%20temp/
The bars are made out of 1" EMT, the center section is 1" steel box tube and
the center stand legs are 1/2" steel tubing, all either .o64" or .049"
(whatever I have handy). On my python, I can weld it up as illustrated, and
slide it over the front of the pythons rear section. I'll add rubber
stoppers to stop the stand from rattling when riding, as well as to pad the
stopping point when the stand is deployed. When the stand is used for a
steading brace while stopped, the handle bars are about 3/4's of the way up.
When the center stand is all the way down, it lifts the center of the trike
about 1/2" to 3/4". It might even come in handy when going very slow on
steep hills, in which case, I might put a small roller blade wheel on each
leg to help it roll.
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