[python] Re: BB-seat diff vs. PSI

  • From: Dirk Bonné <dirk.bonne@xxxxxxx>
  • To: python@xxxxxxxxxxxxx
  • Date: Thu, 05 Apr 2012 11:45:11 +0200

On 05.04.2012 11:40, Dirk Bonné wrote:
On 05.04.2012 07:03, Vi Vuong wrote:
Anybody notices effect of BB-seat diff on PSI? or perhaps BB height alone?  BB-seat diff in the survey ranges from 1 to 32cm, plus crank.  It seems that kicking the pedal upward causes more PSI then pushing forward or downward.

Vi
Hi Vi,

It depends if you use click pedals or not. I use click pedals and notice no PSI effects differences between the pythoon (diff 17cm) and the stokid-python (diff 25cm). On the whole controlling is easier and safety is better using clicks.

Dirk
I forgot to mention, there is an article about the best seat-BB difference from the standpoint of aerodynamics:

    http://oud.ligfiets.net/redactie/meetligfietsengels.pdf

(lots of other interesting stuff in there).

For 30degrees seat angle I aim for 25cm difference. I find this very comfortable too.

Dirk
============================================================ This is the Python Mailinglist //www.freelists.org/list/python Listmaster: Jurgen Mages jmages@xxxxxx To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field. ============================================================

Other related posts: