Yea........the seat post sticks up about three inches from the clamp but on a Riv you'd get maybe an inch and a half more due to the absence of the clamp. The measurement is from the top of the clamp to the bottom of the curve of a S83 post. I left my steer tube uncut so that gives me a noodle bar that is around 1.5 inches higher than the saddle with my 105 degree stem. The Trucker has a similar extension of the head tube like an Atlantis but not reinforced with a lug etc. I like the look of a short seat post that gives a bicycle that "frenchy" look rather than the mile high seat post with bars so low your spine is forced into a reverse S shape. I do however enjoy enough room over the top tube to go off road on uneven ground and not get a bruised crotch. I realize this effect is often over exaggerated by many but still, I like about an inch of clearance from the actual pelvic bone. I know what you mean about different frame sizes, head tubes and rakes etc. I have 57,58 and 58.5 cm frames and they are all different. I'm even noticing the difference in how they handle. These days I prefer the longer wheelbase slack angled touring frame with fat tires. There is no more comfortable bike. In fact, my recumbent (on rough roads) is not as comfortable. You might in fact be suited to a 61 cm frame. It may be that you have long enough arms/torso to make up for the longer top tube and you won't need too short of a stem to find the sweet spot.
On Apr 16, 5:31 pm, jim g <yoj...@gmail.com> wrote: > On Apr 16, 5:06 pm, charlie <charles_v...@hotmail.com> wrote: > > > I am 5'11' and I have a 86.4 cm PBH. I currently ride a Long Haul > > Trucker which is similar to an Atlantis and I chose a 58cm. I use > > 175mm arms now and ride with Crank Bros. 50/50 pedals and Tevas > > mostly, skate shoes or my Redwing boots. I have a shorter reach than > > most and I use a 90 mm stem length. I could probably ride a 60 or 61 > > Riv frame depending on the model and the tire size. I use Schwalbe > > 700x47's on my Trucker so the 58 cm works nicely for me. > > With tires that large, I can see why a 58cm would work for you. But I > bet you have a decent amount of seat post sticking out? > > I agree that I am over-analyzing this and that it is, to a large > degree, a question of (certain) aesthetics...but I am trying to > understand the subtleties. There are other factors at play too, such > as head tube length, which can impact max handlebar height. For > example, I have 4 frames all nearly the same size (ranging from > 57-58cm), yet they all have different head tube lengths. Fork-blade > length affects this, too. > > Ultimately, I currently have a 57.5cm RB-1 that I either need to use a > long Technomic on to get the bars where I want 'em now, or I need to > replace it -- and if the latter, I'm wondering if I should go with a > 60cm or 62cm frame. > > -Jim G --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
