Originally Posted by
JohnJ80
Sure, they both "fit" but the performance won't be the same.
Just because the contact points are the same, that doesn't mean the the wheelbase, trail, and other specs of the two frames sizes are the same. If those are different, then the frames will have different handling. Sometimes the differences can be fairly dramatic if the frame geometries are not similar.
Fully agree with what you say.
In this instance, all geometry of the frame was taken into account compared to my prior gravel frame as well as my road bike frames.