[python] Re: RWS

At 07:42 PM 4/24/2005 +0200, you wrote:
>On my Monty the frame is finished and the wheels are on. When bike stands on 
>the floor and I turn the front part to one side the rear wheel turns in the 
>opposite direction (along with the rear & middle part of the frame). Has 
>anyone calculated how different pivot angles affects this "rear wheel 
>steering", which in my mind will act as a kind of steering "booster"? I guess 
>with longer wheel base this effect will be stronger. 

Hi Olaf,
The RWS is mostly a function of trail; imagine any head angle with zero trail - 
there will be almost no rear steer. The angle of RWS will be proportional to 
the ratio of trail/wheelbase.

>Will increased RWS also make pythons more unstable at high speeds?

Hard to say, it changes balance since when the front wheel gets pushed left (by 
wind etc) the rear wheel moves right, tending to keep the wheelbase under the 
center of gravity. I think that is what makes the low speed handling a little 
harder to get used to. On my Trek, when I turn the bars left, the whole bike, 
front and rear, shifts left under me. On the python it requires more steer to 
get the bike back under as you tip over.

Ray

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