Riders weight and trail

[claritycycler]

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

[progetto]

Maybe I'm under thinking this.

[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.

[claritycycler]

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.

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

[steve garro]

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

[WadePatton]

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

[claritycycler]

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

Thank you, question answered. Brian