[python] Re: : new phytonauts

Hi all phytonauts,

I'm the constructor of the Birdcage.
Yesterday i drive downhill and i reached 47,5 km/h and this without pedaling , the bike is very stable and its like you drive a mountain bike, it glides away and the speed is not stressy at all, more the speed is high, more stable is the bike (but i had to drive very clean, no risk to take, and no holes must be in the streets)(i drive without clickpedals) With pedaling only maxspeeds at 30 km/h are possible( a short time), because i had problems with PSI (pedal induced steering) . This problem is perhaps the reason i crashed heavily a month ago at speed of 30 km/h . Suddenly the bikes becomes incontrollable (breakout left right left right) and you can't keep it straight anymore. I think its because my brain don't know the situation. Speeds at 20km/h is actually no problem and this in the right cadence of pedaling (to high or to low pedaling speed had the same problem with psi control ) Uphill i think i can be much better if i had better training condition(my own body fails)(.....Dann versäg ich sie alle...) 
Each trip reached average speeds of ± 16-17 km/h.
I drive the python now for 106 km and I have11 H 41 hours of practice(only 6 and half on streets the rest was testing in front of my house.) 

Salut
Serge

sorry for my english!
I found a interesting page in french that compares material resistance from alu 6061 and alu 7075 with steel: (look at" the resumé") 
http://bentmania.free.fr/site/index.php/mecanik/mecanik/l-alu.html

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