Not an answer to your specific question, but I have some recent experience relating to non-intuitive top-tube length issues. A few months ago I picked up my long-awaited Curt Goodrich fat-tire touring frame. When discussing geometry with Curt, I asked him to make it like my 58 Atlantis, but maybe a tiny bit shorter in the TT. When I inspected the new frame, I was surprised that the TT was actually about 1-1.5 cm LONGER than on my Atlantis. But, for whatever reason, it works, and is very comfortable. Probably has something to do with shallower seat and head angles. I've even been toying with the idea of trying a longer stem (1-1/8 threadless, so it's easy to experiment), but I doubt I'll get around to it anytime soon.
I've come to agree with some of Grant's published opinions that TT length isn't that important, and has to be considered in the context of frame angles, rider fitness, riding style, stem/handlebar choice, etc. Simply comparing TT lengths isn't a productive way to evaluate the suitability of one frame vs another. Semi-related: In our shop, we often see people sliding saddles forward to reduce the reach to the bars (simulates a shorter TT by increasing the effective seat tube angle). Curiously, this practice often makes the problem worse, because of the way it changes rider weight distribution. Often, the stresses on hands, backs, etc, are mitigated by sliding the saddle backwards, thereby simulating an even longer TT. On May 13, 9:19 pm, dpco <dcompton1...@sbcglobal.net> wrote: > to grant, > why is the toptube on a 58cm saluki .5cm longer than a 60cm ram? > don c. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~----------~----~----~----~------~----~------~--~---