Hello Patrick, Thanks for sharing that. Simple and straightforward guide to replicating a fit.
I see though you never mentioned the "reach" on the bikes - does it remain the same as well? In all honesty, I do not yet understand what reach signifies but it seems to be important. I read in an article that the ETT would show how you feel riding while on the saddle - while the "reach" will tell you how it feels when you are standing and riding. I don't know if this is correct. But if that is the case, the need for Riv to specify the reach in the geometry would probably be because everybody wanted to know them -as the way their bikes are designed, I think most people will be riding while on the saddle anyway. best peter Am Mi., 9. Okt. 2024 um 01:38 Uhr schrieb Patrick Moore <[email protected] >: > From my first Grant-designed bike, a 1992 XO-1 through my 3 Riv road > customs to my 2nd edition Rambouillet, all had about 57 cm c-c top tubes > though the seat tubes (all 73*) c-c were 54 cm, 54, 57, 58, 58; and my 2020 > Chauncey Matthews drop bar road bike also has a 73* sta with 57 cm tt and a > 58 cm st. My Matthews dirt road drop bar bike has a slightly longer tt with > a slacker seat tube angle and dramatically upsloping tt with a huge ht > extension, so still a ~57 cm effective top tube. The Matthew’s road bike > has a 58 cm c-c st and the Matthews “road bike for dirt” has a ~47 cm st. > > With all of these bikes, once I get the saddle positioned properly in > height and in fore/aft relation to the bottom bracket, I get a very similar > reach and torso angle from hips using either 38 cm bars and 8 cm stems 3-4 > cm below saddle, or (dirt road bike) 42 cm bar on 9 or 10 cm stem with bar > level with saddle — this last gives a very slightly more upright position, > appropriate for our sandy dirt. > > The first edition (~2010-2011) Sam Hillborne was different. It had IIRC a > 59 cm c-c tt but it also had (IIRC) a 71* sta instead of 73*, so the > effective tt only slightly longer. The bike shipped with a 10 cm stem and > 46 cm Noodle bar (Riv sold me their floor model) and I compensated by > raising the to very slightly above the saddle, ending up with a more > upright position than with my other Rivs. I didn’t find this as comfortable > or as conducive to “intuitive” handling and I sold the Sam more quickly > than I sold the others (I have 1 custom road left, the perfect one). > > I agree: Get advice from Rivendell, but parse it according to your own > needs. I personally do not like Grant’s solution to too-long top tubes, > which is, raise the bar high. I like my bar in a certain place relative to > a properly positioned saddle, and this means a top tube of a certain length > given the seat tube angle. > > > On Mon, Oct 7, 2024 at 10:54 AM Peter Fray <[email protected]> wrote: > … @Patrick - thanks for that guidance. Are the top tubes between your Riv > vs other drop bar bikes very similar..? I feel the newer Riv’s are less and > less designed for drop bars, the ones that are in my pbh have pretty long > tubes. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "RBW Owners Bunch" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/rbw-owners-bunch/fSXnP5DI1kQ/unsubscribe > . > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/rbw-owners-bunch/CALuTfgsh5t4m%2BRwQTu%2BHf1MS%3DFg1UnkSdxTfB8viAkgCCcqjmA%40mail.gmail.com > <https://groups.google.com/d/msgid/rbw-owners-bunch/CALuTfgsh5t4m%2BRwQTu%2BHf1MS%3DFg1UnkSdxTfB8viAkgCCcqjmA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/CALzC4ZEg9P29z28jF2oKwQT7cvECZ30JJNQRPpgKKzxd0OBw2A%40mail.gmail.com.
