do the large bikes cost the same as the smaller ones?
This is a regular question.
Not that unreasonable is it? Given the price of raw materials these days. Surely there would be a bit of difference between an XS and an XL in terms of raw material costs?
Depending on what the frame’s made of, probably about a fiver at most.
All the components fitted are the same size* no matter what the frame size is.
*OK, I know that a few manufacturers these days fit size specific bars, grips, etc, but that type of service should cost more, not less.