[python] Re: Jetstream
- From: Thomas P Jahn <tpj@xxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Wed, 28 Feb 2007 16:01:17 +0100
There is a borderline where the self centering force compensates the
"weight of front part + leg-feet weight (i.e. that what causes wheel
flop)".That is where the balance is.
I am still confused about the "compensation" or
balance. What exactly has to be compensated?
Jürgen writes on his homepage:
"So 63° is the best pivot angle?
Not really, but it is close: The optimal pivot
angle is exactly the one where the weight of the
whole front part (including the riders legs) is
in equilibrium with the rest of the bike
(including the rest of the rider). This is
different with every bike and rider. To be more
exact: It is the angle where the wheel flop
effect is nullified by the seat rising effect.
The heavier the rear part is in relation to the
front, the closer the pivot angle may approach
the desired maximum seat rising angle. "
So, here it sounds as if the compensation is to
increase rear weight versus front weight.
And how would it in theory relate to the pivot
angle?: The heavier the rear part compared to the
front, the more shallow the angle may be???
But you Dirk say something about pivot angle
versus front weight. And that is probably
something that cannot be put in numbers. like
degree angle / kg weight???
To increase the confusion:
In the other thread "81 inseam" you just said
that you did not experience any difference with
the luggage. So, weight plays no role??
Then again its sounds as if you on your
babypython must be close to wheel fleep. But
still it never happened. That sounds really good.
And your pivot angle is 60° as I can see from the
survey. What about the weight (rear versus
front?) Or does it matter at all in your case???
It seems not!?
cheers
Thomas
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There is a borderline where the self centering force compensates the "weight of front part + leg-feet weight (i.e. that what causes wheel flop)".That is where the balance is.
- [python] Re: Jetstream
- From: dirk . bonne
- [python] Re: Jetstream
- From: Henry Thomas
- [python] Re: Jetstream
- From: dirk . bonne