[python] Re: Python Trike (english version!)

moriguchi wrote:
> Hello
>
> My pyton delta is still under construction.
> http://d.hatena.ne.jp/telaviv/20060410
>   
> When I reached 38.4km/h on the
> flat road, it required cadence of 100rpm and I had experienced some wobble
> on the fron wheel corresponding to my pedaling. It should be due to my poor
> pedaling skill, not any problems of my python delta itself.
>   
Hi Nobuo,

May be not, the steering angle is a compromise.

At 60degrees of my python and at max pedaling rate/power, I can also see
a wobble: I notice that the pivot itself shakes left/right with the
rithm of the cadense. The compromise is:

* the greater the angle, the easier the bike is to turn and control.
* the lower the angle, the less effect pedalling has on the pivot.

On my flevo racer the angle is 45degrees, and on that bike I have
stillness of the pivot with respect to pedalling, but I pay with much
more cumbersome turning. Fx. it is difficult to do a U-turn on a small
road without losing control ---not so with the python.

But even with the wobble-disadvantage I would choose the 60degrees over
the 45degrees any time.

Regards,
Dirk

============================================================

This is the Python Mailinglist

http://www.freelists.org/list/python

Listmaster: Jürgen Mages jmages@xxxxxx

To unsubscribe send an empty mail to 
python-request@xxxxxxxxxxxxx
with 'unsubscribe' in the subject field.

============================================================

Other related posts: