Hi Eric, I am 6' 1/2" with a PBH of 89.2cm so just s smidge lower than you. When I bought a custom Riv Road in 2001, Grant put me on a 61.5cm frame. It is still superbly comfortable. I have since bought a 60cm Quickbeam and a 62cm Legolas. I like the 62cm better.
As for cockpit position, I continue to evolve towards shorter reach. Part of this came from more time on dirt. There I need more body english to handle the more challenging terrain. Jeff Jones alludes to this in the first 1.5 minutes of this video https://youtu.be/Ndt8Di_TjJE This has started to bleed into my road position where I am now unsure of the advantage of a stretched position. Even my lower body position has changed with the use of catalyst pedals. These big long pedals have basically shifted my feet forward 2-4cm. This seems comfortable and efficient at least in the dirt. So there are rules out there that can put you in that preferred position. That's a starting point but I suggest you feel free to deviate, even a lot. On my garage wall are these formulas, originally from Grant I believe: Frame size = PBH in cm x .69; Saddle height = PBH x .883 I like my dirt bike saddle height a cm shorter or so. Joe in GJT On Wednesday, October 17, 2018 at 12:08:22 PM UTC-6, Eric Myers wrote: > > Up until about a month ago I rode 58cm sized bikes, in varying degrees of > (dis)comfort. Then I started riding my new significantly larger Sam > Hillborne and realized all my older bikes are too small, so I've basically > decided to replace one of my old bikes with something similar (mid-80s > sport tourer) in a larger size, and sell the rest. Now I'm trying to > figure out that sizing. > > > > I'm a little over 6'1" (187cm) and long in the torso but with only normal > length arms, according to my dress shirts. So to paraphrase an old joke, > my arms aren't quite long enough to reach the handlebars, and I need an > extra couple cm of handlebar/stem height to compensate. > > > > My PBH is 89.5 cm. According to Rivendell, my saddle height should be > 78-79cm, and my starting frame size should be 62-64 cm (The Sam is > different because it is an expanded frame). For whatever reason, that > saddle height is not comfortable and I tend to use something a couple cm > shorter. (Possibly because I keep my feet further forward on the pedal?) > > > > On the Sam I have Albatross bars and love them, but would like to have a > second bike with a different cockpit. Stretching forward has generally not > been as comfortable to me as riding in the drops against a headwind, so I > am hoping that a larger frame, plus a short reach stem (I'd try one of > Analog's w(Right) stems if they were cheaper), and short reach drops like > the Soma Highway 1 bar might add up to something comfortable. > > > > If you have a similar body challenges, or a preference for a slightly > shorter saddle height, I'd love to hear about your thoughts and experience > on bike sizing. Ditto for drop bars. I know I'm going to have to try > riding a number of different bikes, but I'd like to start out trying the > right size. > > > > Best regards, > > Eric > -- 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 https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
