Andrew, If your still looking for the answer its because the late run 60cm Betties has a higher head tube. Kevin and Vince had explained to me that for the taller riders were maxing out the stem length and it looked sometimes off. So the after a certain run all off the 60cm bettys were made to be taller in the front which takes away the kink in the back. Vince has the shorter one with the kink and the demo 60 one for sale now is taller. You lost about almost 2 inches of step through with the late run 60s
The 60 inch chev is the same as the late run 60 betty but with a longer chain stay. (no kink, higher head tube and loss of step over) I haven't looked at the smaller Chevs to see if they keep the shorter head tube. Cheers. On Wednesday, January 8, 2014 8:27:07 AM UTC-8, BSWP wrote: > > There's a picture of a 60cm Betty Foy on Riv's blug, and it's the first I > remember seeing where the top/diaga-tube looks to meet its rear > counterparts in a clean straight line. On others, and I guess smaller sized > frames, the top tube meets the rear tubes with a slight kink. Again, I must > not have paid attention to other images, or to the frames in person. But > why the difference? Is it to keep the step-through height of the top tube > identical across frame sizes? It's no doubt identical in rigidity and > stoutness, but quite different in appearance, one size to another. I like > the look of a single line from top of head tube to rear axle. > > - Andrew, Berkeley > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
