[python] Re: eight

> > The Worm:
> >weight: 14 kg without components
> >             (I used 30x20x2 for front, 40x40x2
> >             and 40x20x2 for rear frame)
> 
> Marc, you are sure with the 2 mm wall thickness?
> Standard is 1.5 mm.

There is no standard thickness. the tube 30x20 is in the catalog that I have
in the thickness of 1.5, 2 and 2.5 mm.
I'm sure of these values. I haven't bought these tubes for the bike, I just
took what I could find in the company where I'm working. And here we don't
care for lightweight structures..... . So I'm sure that it is 2mm. Of course
I would buy new tubes for a definitiv bike and then I'll use 1.5mm!!


> The body-contoured seat surely makes part of the
> riding-stability.

Yes, it works a lot better if you have good contact to the seat up to the
shoulders. I tried a few times to change my sit-position during the ride and
had allways stability problems during it.

Marc


-- 
Marc Hübner
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CH-4132 Muttenz
0041 61 461 70 33
marchuebner@xxxxxx
http://www.marchuebner.ch.vu/

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