Pourquoi les roues assurant la direction pivotent elles autour d´un axe non vertical? -> le concept de la chasse: la rotation de la roue autour d´un axe oblique élève le cadre et le pilote. la masse de l´ensemble crée donc une force de rappel qui ramène la roue dans la position d´équilibre. la force et donc la stabilité augmentent avec l

Do you know 'carnets d'aventure'.. well this is a french magazine talking about such things as travelling very light.. with a bike, by foot, on a kayak, ... found an interesting article where some french guys did the famous chamonix-zermatt by bike... http://www.expemag.com/recit/chamonix-zermatt-vtt.html this looks like a pretty good idea...

Let's say i met this guy called manu... well he used to be some rowing champion at school.. then you understand better why when you go mtb with him he's allways very chatty while you're trying to breath some air in... just some idea... you take the very bad quality map from kompass or even worse the one from germany... (after ign in france it's ver

Utahtrikes.com => cheap and robust design . un tel type de section doit être plus facile à souder!

Let´s start some stress calculations to design the frame size and material: first i need to recall a bit of theory in mechanics... and i started also some basic calculations on structurix. here are the first results for a steal pipe (diameter 48,3mmm, width 2mm, length 2m, with 200kg in the middle. we´ll get quick an idea of our minimum requireme

Lattice frame. arrière suspendu et cadre en treilli... avec l´habillage qui va avec: http://www.flickr.com/photos/b52_bent/

We are not alone!! many people are making their own bikes and there's even a fair close to us! http://www.e-h-b-e.eu/ 30th of march close to stuttgart ;o))

Here are the gps traces: so do we want to go for this? or closer to munich?

Chamonix-zermatt is quite famous as a high-route in ski. i just had a quick look at the previous posted route and this looks really nice! as another idea, we could go in the dolomites... but then that looks like a transalp... ouch i hate this word it's so trendy at the moment...

La réponse d´aleksander: salut olivier en gros le diamètre de la baguette correspond à l'épaisseur de métal à souder pour l'ami-4 j'ai utilisé des baguettes de 1.6 et j'ai voulu souder des tubes trop fins de 1.2 mm d'épaisseurs donc pour du 1.2 mm il faut des baguettes de 1.2 ou moins de plus j'ai mal imaginé un renfort qui était impossi