It sounds like there's quite a difference in the bb-drop measurement between these two. Same wheel size? It seems like a bike designed for taller clearances over the front tire would have a shorter head tube, frame size and bb-drop dimensions being the same.
David Snyder
Auburn, CA usa
> I've always estimated the size of a frame by eyeballing the length of the
> head tube. But I have a Carlton Catalina that has an 8" long HT and 24"
> ST and a
> Schwinn 11.8 with 8" HT and 25" ST. I guess the geometry makes a
> difference
> to my method in that the 11.8 must have steeper angles?
>
> Thanks in advance to all who respond.
>
> Jack Romans
> Sacramento, CA