On Saturday, July 22, 2023 at 11:57:41 AM UTC-4 Peter Bridge wrote: Did your noticeably heavy Sequoia perhaps have heavy wheels or thornproof tubes or a spring Brooks saddle or some such? I find Sequoias to be sportingly light.
No, it was the stock parts that came with it. Fairly light wheels, Turbo tires. I would make the same statement about Heron #1, the prototype, which is a Road frame built with Touring stays at the rear. Both frames are a joy to ride. Interestingly, I read somewhere that the Sequoia was designed with a bit heavier down tube and chain stays. Recently I posted on a frame building forum a query about the ratio of stiffness among the frame tubes. If you look at older Reynolds tube set specs, they have .1mm thicker down tubes than top and seat. Or, if you like, their top and seat tube walls are .1mm thinner than the down tube. All other tube manufacturers, and even Reynolds now today, specify tube sets with equal wall thickness around the main triangle. It's also important to note that the down tube and seat tube were always 1/8" larger diameter than the top tube. Lately it seems steel builders have been experimenting away from that, but I haven't seen any discussion of why they would do that. For my Rivendell Road, for example, Grant spec'd the exact same tube for both top and down tubes. So, that goes the other direction, making the top tube exactly the same stiffness as the down tube. BUT, because the top tube is shorter than the down tube, there is less butted section remaining in the top tube. Anyway, my hypothesis is that the relative stiffness among the tubes has an effect on how the frame feels, and the a stiffer down tube and chain stays is what produced the "magic" feel of a Reynolds frame. Perhaps backing up this hypothesis is the "Spine" line of frames that Trek built, with steel or titanium down tubes and chain stays, and carbon tubes elsewhere. Their marketing touted the effect that had on the feel of the frame. A friend has the titanium one and he loves it. Sorry for the meandering detour. I just found the Specialized Sequoia frame to feel heavy when lifting, compared to some other steel frames. But I loved the way it rode. Ted Durant Milwaukee WI USA -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/cc501a98-d4a0-43d0-af8b-5b71905ca8cen%40googlegroups.com.
