Riders weight and trail

Take any given bike, say a production 58cm frame with 55mm of trail, the heavier the rider(260lbs compared to 130lbs) the less "stable"/quicker turning the bike will be, correct(as touring frames generally have lower trail than a race frame to compensate for the extra weight)?

My question is if two riders have exactly the same measurements on a fit machine does the builder typically/usually design the frame with less trail for the 260 guy vs. the 130 guy?

thanks, Brian

Maybe I'm under thinking this.

I would think that the weight distribution between the front and rear wheel would be different between the two riders even if the contact point dimensions were the same.

Quote:

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Originally Posted by David Tollefson

I would think that the weight distribution between the front and rear wheel would be different between the two riders even if the contact point dimensions were the same.

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Well......not sure what that means. Loaded touring frames, front and rear loads, are designed around specific load weight on a custom frame? I basically want to know if rider weight is a significant/unsignificant aspect of trail number design.

thanks, Brian

No.
Use is.
Weight dictates the tubing selection.
Physical geometry dictates bicycle geometry.
- Garro.

throw a lock on this one. the truth has been laid bare.

Quote:

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Originally Posted by steve garro

No.
Use is.
Weight dictates the tubing selection.
Physical geometry dictates bicycle geometry.
- Garro.

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Thank you, question answered. Brian