[python] Re: A B thingy

  • From: juermaier@xxxxxx
  • To: python@xxxxxxxxxxxxx
  • Date: Thu, 19 May 2005 12:24:30 +0200

Am 18 May 2005 um 10:28 hat Dirk Bonne geschrieben:


> Would it not help if you would shorten the cranks? Would there not be enough 
> space for the
> derailleur then?
No, I will have only 31 cm from bb to hub, so the chain will not run smoothly.

> Could you explain the A >= B thingy?
See the attachment, when the pedal is pushed there will be a resulting force 
(green) which
wants to push the bb to the right side. It is like a seesaw. hub is the center 
of rotation, the
pivot with the body acts as counterforce. When A = B then the forces are 
balanced, if A > B
then it is even better.

Greetings Jürgen Maier




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