Rene, It may or may not be relevant to the twist in your Berthoud saddle, but I also found that my old B17 had broken in asymmetrically, and I tended to have much more pressure and discomfort on one side. Part of that may come from my having broken my right ischial tuberosity (sit bone) back in 1992. The solution came from the setup instructions for the Selle An-Atomica saddle - for those of us with slightly asymmetrical hips, the nose of the saddle may have to be pointed a bit to one side instead of straight ahead. You need to rotate the nose of the saddle towards whichever cheek is under too much pressure. The magic point is when each sit bone bears equally against the saddle. Too much rotation may cause your leg to rub against the nose, so there's a limit to how far you can go. It doesn't take much to make a noticeable difference. I now find that rotation is a basic part of saddle fitting for all of my saddles. Just lining it up by eye doesn't get it into the right position.
It's disturbing that you actually seem able to twist the frame of that saddle. I would consider that a defect, at least worthy of a call to the retailer to see if there is a known issue or a possible fix (or a warranty replacement). Bill Mennuti On Mar 27, 7:39 pm, Rene Sterental <orthie...@gmail.com> wrote: > Hi all, > > To my utmost dismay, today I realized that my 3 month old Berthoud Touring > saddle is all twisted on the seat post on my Atlantis. Please check how it > looked in January when I installed it: *http://tinyurl.com/4mw79ms*and how > it looked yesterday: *http://tinyurl.com/4ea9qfe*. > > I have posted some additional photos as well where you can check it from > behind referencing the handlebar: *http://tinyurl.com/4vbsdmf*. > > It all happened because I got a second Berthoud saddle for my Homer and > installed it yesterday. As I was checking to make sure that saddle position > and height on the Homer was identical to the Atlantis, I noticed that the > screwed rivet on the nose seemed to be pointing towards one side instead of > pointing upwards. Further inspection from behind showed the left side > significantly lower than the right side, and what appeared to be a twisted > frame. When installing the Berthoud on the Homer, the distance between the > rails is quite shorter than than the width of the rail "tracks" on the head > of the Nitto S-83 seat post. The same was true on the Atlantis, but it > wasn't quite so significant and this time I had to spend a significant > amount of time slowly tightening the screws on the Nitto's head so the > saddle rails would slide and get expanded to fit properly. The saddle on the > Homer is very straight, just like the saddle on the Atlantis was at first. > > I don't know if my hips are twisted and/or one of my legs is shorter than > the other one; I'm having problems on my right hip that coincidentally or > not, started when I started riding the Brooks saddles on my Riv bikes. As I > removed the Brooks saddle from the Atlantis to replace it with the Berthoud > - the Atlantis is the bike I ride the most - I did notice that it seemed as > if that saddle was starting to break in and the left side had a larger > indentation making it a bit lower than the right side. At the time I > dismissed it having read that it appeared that the newer Brooks saddles were > not holding their shape very well and since I was swapping it for the > Berthoud didn't pay any further attention to it. > > I then proceeded to remove the saddle from the seat post on the Atlantis to > examine it (after taking the photos) and found the following: > - The saddle seemed to straighten itself but I could twist it by hand quite > easily and replicate the twist it had when mounted. > - The screws on the rivets were a bit loose and I tightened them all - the > saddle seemed to get a bit firmer and less twist prone but I could still > twist it by hand. > > I then mounted the saddle on a Thomson Elite seat post and carefully > adjusted its position and tightened slowly ensuring it was straight. After > being tightened on the Thomson, I could no longer twist it by hand. > > I'm quite puzzled by all of this but am wondering if any of the following > may be true: > - My body is slowly twisting the saddle as I ride and my left seat bone is > actually lower than the right one. On the Brooks saddle it seemed to start > causing the leather to adapt to my derriere but on the Berthoud, the metal > rails can twist on their plastic ends and therefore rather than the thicker > leather adapting to my seat bones, the whole saddle has slowly twisted as > the rails have slid even though the saddle was quite tight. > - My right hip problem are the result of this twist that is probably in my > body. I never had this problem when riding regular modern saddles, but for > the past year+ all my rides were on leather saddles. I've gone back to > riding clipped in instead of flats as that was another variable that changed > at the same time. My right hip problem has been getting worse slowly over > the past year, and nothing I've been able to do so far has really worked. > > I apologize for the very lengthy description, but I'm wondering if the > saddle is just reflecting something that is wrong with my body while it > should be staying straight to help it. When I rode my Atlantis, didn't feel > at all that the left side was lower than the right side. > > Thinking back, about a month ago I moved the saddle further forward. To try > to maintain its tilt I didn't loosen it too much, just enough to be able to > push it forward by shoving it from behind. I wonder if it wasn't loose > enough that my shoving caused the twist by pushing one rail further than the > other one and then tightening it. > > Any feedback is much appreciated; I'll keep riding it and monitoring it to > see if the twist returns or if it now preserves its correct shape. > > Thank you all! > > René -- 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.
