[python] Re: frame finished

> This bike is so simple and elegant. I'm sure it won't be long before
> someone makes a sub 10kg python.

Hopefully yes. The frame as seen on the picture weighs 6 kg.
My first python, fully equipped weighs 18 kg. This gives my some
hope that p3 can reach 16 kg, when it is finished.

> A question about the rear suspension: do I understand correctly that the
> smaller tube only has 5-6 mm of freedom? What's the possible travel of
> the rear wheel then?

7 mm only.
The travel will be 34 mm then.

If you want more, you can remove the upper wall of the 40x40 tube and
enforce the three remaining walls. Then the travel is limited by the
capacity of the elastomere block only.

> Jürgen, can you compare speed & comfort to 'classic' fixed bottom
> bracket bikes? I wonder how much energy, if any, it takes to keep your
> balance. There's an experienced Flevo Racer rider in our recumbent group
> and it certainly doesn't slow him down, so I guess it's not a big deal.

That is, what I have experienced. Riding the python is extremely relaxing,
both when you travel fast and when cruising at minimum speed.

I have the feeling that moving BB bikes are closer to the human way
of moving and walking than fixed BB bikes. Your joints, especially
knees, are not constantly stressed with the same movement.

Best regards from Jürgen.

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