Softride Stem Archive
**Skoop's Softride Stem Archives** Welcome to the Softride Stem Archives! What follows is an archive of comments and opinions gleaned from the rec.bicycles.tech and rec.bicycles.off-road newsgroups. This file is constantly growing as I pull more stuff from the net. Nothing here is in any particular order...sorry. I *have* tried to trim down headers and .sig files somewhat, and made sure that credit to each author is present. Additions, etc., can be emailed to me at--just be sure you tell me what it's for in the subject of your message. Enjoy! %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% This article was sent to me by Charles Manry ... From: wa@mcc.com (Wayne Allen) To: cmanry@nextasy2 ********** I recently acquired an Allsop Softride stem, and now offer this initial review. Motivation ========== A year ago I took my first real off-road ride (off *paved* road, that is) 26 miles through the desert/mountain country in Big Bend N.P., Texas. When I got to the end, the flesh of my arms felt like it had been flayed from the bone, and my hands clutched spasmodically like some B-movie zombie, but man, was I pumped! I wanted to do it again, hold the pain, please. Why an Allsop ============= Cost, simplicity, reliability, maintainability, adjustability, weight, comfort, responsiveness, high-speed performance. When I applied each of these more-or-less equally-weighted considerations to most popular forks, the Allsop always won (in *my* mind, at least, which some argue is a murky place, at best =8-). If you skew priorities toward high-speed performance, one could argue for forks being the better choice. I also looked at the Girvin Flexstem but I felt that the Allsop would be better because: - more travel (~3") - continuously (as opposed to descretely) adjustable on the trail - constant bar pitch (I thought most important) So I Got One ============ Basic mechanics: the stem body is a pivoting parallelogram supported by a coil spring. One end of the spring pivots about the lower-rear axle of the parallelogram, and the other is attached to the under-side of the top bar of the parallelogram through a mount and threaded screw. You can adjust the spring pre-load tension by turning the screw. As you depress the handle bar, the spring compresses, and the bar retains a constant pitch throughout the travel because of the parallel geometry. The first (!) stem I received from the All-terrain Suspension Shop (see Sources below) was the 135mm aluminum. On this particular stem, the pre-load adjustment screw wanted to simultaneously occupy the same volumn of space as the fore lower pivot axle. I returned it and asked for a 135 which had sufficient clearance, or, barring that, a 150mm. I recieved a new 150mm stem (draw your own conclusions, but don't say I didn't run up a flag!) and mounted it on my '90 GT K2. Replacing my (somewhat obese) stock stem, the Allsop added 130 gm (4.6 oz) to the total bike weight. The quality and ruggedness of construction seems excellent. The experience illuminated a number of considerations.. 1) The mounting requires that you use a cable hanger for the front brake. I got one of the Dia-comp hangers (nice little piece, $10). However, the head tube on my GT was cut to fit my fork and Harra headset with only a 3/64" washer to spare. So, since the hanger is 3/16, the headset lock nut does not really have enough threads to work with. I plan to get the tube trimmed to fit, an estimated $10 to $20 at a local shop. One could get a smaller stack-height headset, I suppose... (NOT!) 2) The stems all have 1" quills, and fit oversized tubes with a shim. The 1-1/8" shim mounted fine in my fork. 3) The stems come with several sizes of pivot-axle shims to adjust the amount of bar rise; two rise hights for 135, three for the 150. This requires some dis-and-re-assembly. I did not adjust the height, so cannot comment on the difficulty. 4) The stem design uses "friction" damping. That is, the four hollow pivot axles are mounted with through-tube allen-head bolts and non-slip nuts. (The nuts have a nylon insert so that they hold the threads firmly.) This allows any amount of friction to be applied and held constant by bolt torque. Higher damping also increases static friction ("sticktion"). I left the damping as it came. 5) The stem allows for pre-loading of spring tension using the same allen wrench size which adjusts damping (3mm). I initially set mine so that the stem depresses slightly (<0.25") when sitting in a neutral position on the bike. I assume this is near the soft end of the spectrum. 6) Maintenance entails relieving the spring tension with the pre-load screw, un-screwing each of the four pivot axle bolts, and greasing the eight bearings. Requires only the one allen wrench. Should probably be done every (pick one): 100, 1000, 1000000 miles. (Your guess as good as mine.) After mounting, I rode down a local hilly back-road, composed of caliche, exposed limestone, and much loose rock. Having ridden this bone-jarring road many times with my stock stem, I was able to make a preliminary assessment: Aaaahhhhhhhhhhhh!!! *Subjective* Impressions and Random Blither =========================================== There was no detectable steering flex - the bar seemed as firmly connected to the fork as ever. There was a small amount of dive on braking. I did not adjust the pre-load to test it's effect on dive. Jumping or hopping the bike required a little anticipation, since the stem rise stop is rubber, and compresses slightly when you jerk up on the bar. Subjectively, the front of the bike seems like it's "flowing" over the ground. At the low level of pre-load I used, the small bumps (high frequency) were simply gone, and the large bumps were just a gentle up-down. When you *watch* the stem work (a risky business at best, similar to *thinking* about counter-steering while doing it ;-), it's flexing constantly, and the front wheel and frame move up and down. But the *bar* doesn't move. When riding normally, you're completely un-aware of this activity. I suppose the constant bar pitch contributes to this effect. The fact that the frame still moves up and down isn't noticable, since (I suppose) vertical movement at the front does not translate into much movement at the saddle or pedals, because they are so much closer to the point of rotation (rear axle). I'll pull out my geometry book for the next report. With the standard stem, the front of the bike would bounce wildly when the going got rough at speed. The front wheel would actually bounce off the ground from the springiness of the rigid fork and tire. This is because my arms could not effectively dampen the blows *and* maintain a grip on the bar (this is the *flayed flesh* effect =8-). With the Allsop, the inertia of my body applied through the stem spring acts as a damper so that the wheel stays on the ground rather than bouncing. So while the frame still moves, there is detectably less high-frequency movement than with the stock stem. I assume this translates into better steering traction, etc., but cannot objectively verify it. I have ridden a few fork-suspended bikes. The Trek 8000 with the DS2 fork, for example, feels rigid at low speeds (air shocks typically have high sticktion). It's at high speeds on rough roads that the fork action becomes effective. The effect of the Allsop is apparent at all speeds. I'll speculate that the combined low sticktion and long travel of the Allsop allows a wider dynamic response than most forks. There are probably exceptions, like the AMP and Cannondale forks, which for mechanical reasons have particularly low sticktion. Summary ======= *Very* effective. I can't think of any other bucks I could have spent which would make as big an impact on my riding enjoyment. In fact, I wish I'd spent $50 less and gotten the slightly heavier cromo version. If COMFORT is your bag, this stem is probably better than forks, since it has such a wide dynamic range. If PERFORMANCE is your bag, this stem *will* let you go faster, but I doubt it performs as well as a good fork. Next Report =========== The basic question I hope to answer next is how the stem compares with forks in feel and function on a real side-by-side ride. I'll play with the pre-load settings, and I'll also see if we can quantify some of the differences in the fork vs. stem approaches. I don't expect the stem to out-perform forks, but I'll try to put the differences in perspective. Anyone out there in central Texas have a fork-sprung GT? If so, give me an e-buzz. --MTB-- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Charles (skip) Manry \ School of EECS \ WSU, Pullman WA, 99164-2752 % % cmanry@eecs.wsu.edu \ My opinions are my own and no one else! % % WWW: http:/www.eecs.wsu.edu/~cmanry \ Hang On! -- the home page % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % The Maddness begins: 1995 MTB Racing: % % King of the CDA's June 17 \ Mt. Spokane NCS#1 May 18-22 % % Mt. Spokane Selkirk Challenge June 24-25 WIM#? % % Second annual Clearwater Cup (80% singletrack) August 5-6 WIM#4/6 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -- Newsgroups: rec.bicycles.marketplace From: cmanry@irl.eecs.wsu.edu (C. Manry) Subject: Softride stem service experience Date: Tue, 5 Jul 1994 18:39:05 GMT I would like to tell all of you the great experience I had with Softride out of Bellingham Washington. First some history. In early 1992 I bought a Aluminum Softride suspension stem. I did this to upgrade from my flex stem I had on my bike. I love my softride stem and I still love it today. In the time from then to now I have never taken it apart to clean and re-lube the pivot points. Because of this the bushings or pivot points wore down. They were so bad I could not tighten it enough so that there was no wobble in the handlebars without adding sticktion to the stem. I knew my bushings needed replacement. In the 3rd week of June I was going to be in Seattle for a conference at the University of Washington. This was about 100 miles south of Bellingham. I called Softride and they told me that they could do the work for me and that it would take three days due to back log. They also told me that since I had a '92 stem that they would also replace some of the parts with a newer design. While in Seattle I was going to go out quite a bit with some friends that I have not ridden with in two years. The three day delay was hard to take but I understood that I had to wait my turn for the rebuild. So I called Softride when I got into the Seattle area for directions to their shop/headquarters. Teri Mann, their receptionist, gave me excellent directions to their place she also told that their hours was 8-5 weekdays. Since it was 100 miles away and the traffic was going to be bad on the trip up I made plans to leave Seattle at 6am on Monday morning so that I could be "knocking down the door at 8am". The night before I went for a ride with my friend and told him about my plans, he owns a stem as well. Well after the ride he showed me how to take apart the stem, it was really easy. I felt stupid for not doing it before! Since we had the stem apart I decided to clean all the goop out of it and to leave it taken apart. I put all the parts into my old box and went to bed to get up damn early the next day to make the trip up. The next morning I drove up to Bellingham and thanks to Teri Mann's directions I had no problem finding the place. I was early, 7:45 am. However there were some people in the place so I gathered up my parts and went in. Teri was there and introduced me to John Sheeham who would be overseeing my rebuild. I need to describe John so that you can get a feel for the man. John is a tall man. Well at least taller than me and I am 5'8". He was also dressed in black leather pants and vest and a long sleeve red shirt. He looked like he was in really great shape and he has a rugged-handsome look. I would not want this man mad at me. Any way I told him that here was my stem and showed him which pivots were worn the worst. I then told him that I would drive back up on wednesday to pick it back up. At this point his face changed expression. Before he had a polite, "I here to help you" look on his face. He now looked somewhat miffed and upset. He seemed quite upset that I was planing to drive another 200 miles to pick it back up. He briefly searched around his desk to see if anyone was going down to Seattle so that they could drop my stem off at a local shop. After about 2-3 minutes of this he seemed to reach a decision and got on the phone to see if they had all the parts in stock. He asked me, with a pleading look on his face, how long I could wait. I told him that I had to get back to the conference at UW but that I felt that I could spare 30 min. He told me to wait and that he would be right back. He tossed some of my old parts into the trash can near his desk and grabbed his gear. He grabbed my box of remaining parts, a motorcycle helmet and a coat (Aha! Now I know the reason for the leather get up!). In no time at all John was out the door and on his bike. I heard him giving it the gas as he roared out of the parking lot to go to their manufacturing shop. While I was waiting in the entrance lobby I looked over their bikes and the promo posters. Teri Mann, remember the receptionist, was in back getting phone messages of their machine from over the weekend. By this time it is just before 8am on a monday morning, keep this in mind as you read on. The remaining workers were coming in the door. *EVERY ONE* of 'em asked me, with smiles on their faces, if I had been helped. I told that I was being taken care of. For me, every monday morning at work I am not the person you want to be around. This impressed the hell out of me. While enjoying the friendliness of the staff 20 min. goes by and I hear John on his bike come roaring back in. He comes in and hands me my new stem (well, rebuilt but with some drastic new changes in parts). I of course thanked him for the prompt service and that this was beyond what I was expecting. I then asked who I ay for the new parts and service. He then looked at me as if I had injured him and then smiled and said I owed nothing. It was all free! I am very glad to see such excellent support of a product and outstanding customer service. Softride gets a big thumbs up from me! The stem is a great product and a great company! My thanks again to John and Teri and everyone at Softride for a Monday morning that I really enjoyed. --- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Charles (skip) Manry / School of EECS / WSU, Pullman WA, 99164-2752 % % cmanry@eecs.wsu.edu / My opinions are my own and no one else! % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % CAC#4 Clearwater Amateur Cup August 21 Goal: Top 1/2 finish in my % % WIM#9 IEMBA MB FESTIVAL, 49 Degrees North class by end of summer % % Ski Mountain Aug 27/28 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Newsgroups: rec.bicycles.misc From: cmanry@stimpy.eecs.wsu.edu (C. Manry) Subject: Re: >Experience with SOFTride stems?< In article <2vasth@crl.crl.com> ourston@crl.com (Todd Ourston) writes: >I think you can get more shock dampening from some of the better forks, Maybe, depends on the set up of the fork and stem. However your results will depend upon style, local trail condtions, etc. Ride both, ignore other's *thoughts* and buy what you like. >but the Softrides make a very postive difference. They seem to need more >maintenance than some forks, but as of the 1993 models, they can be >serviced at the bike shops that sell them by simply replacing parts. I love my stem! It does make a 'very postive difference.' I do disagree with the maintenance. I plan to service mine about four times a year. I don't know what maintenance with bumper forks but I do know that air/oil can be extensive. You also need special hubs and other stiffening (rotational flex) toys. More weight and $$'s The pre '93 Al models look similar to the cro-mo versions. They have had some problems with the welds (sic) on the Al versions. If you send you pre '93 Al into the factory they will change out the offending parts and make it look like a '93 and up version. All free of charge. >From what I gather, Softride has stopped making the aluminum models >because they were having problems with lateral flex (i.e., the handlebars >rocked from side to side). There are rumors that they will be coming out >with (a) carbon fiber, (b) titanium, or (c) a better aluminum model, but >for right now, the steel stems are the only safe bet. Hey, they're still >lighter than suspension forks! I was at softride about 2 weeks ago (see post on service in .marketplace) and from what they told me lateral flex is due to the bolts not being tight egnough. You do need to check this every so-often and tighten when needed. When you can not tighten any more without added sticktion it's time to replace the pivots or bushings. A very easy task to do. Beter yet take it apart more often and clean an relube with teflon or lithium (sic) based grease to save your bushings. It is not the material that gives rise to the flex it is the design. The lower half of the Al stem can move independantly because it is two parts. The cro-mo has a single plastic piece, thus no flex. I can't comment on rumors but a better design would eliminate this problem. If you don't care about weight (I agree with Todd here) and want to save $100 go/try the Steel version. Team Richey is using 'em on their X-C race bikes. Or call Softride (call 1-800-555-1212 and ask for the number) and ask 'em about new future designs and if you buy an Al model if there is going to be a new design soon. Enjoy and good luck out there. --- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Charles (skip) Manry / School of EECS / WSU, Pullman WA, 99164-2752 % % cmanry@eecs.wsu.edu / My opinions are my own and no one else! % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % CAC#4 Clearwater Amateur Cup August 21 Goal: Top 1/2 finish in my % % WIM#9 IEMBA MB FESTIVAL, 49 Degrees North class by end of summer % % Ski Mountain Aug 27/28 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Newsgroups: rec.bicycles.misc Subject: Re: >Experience with SOFTride stems?< From: Peter Thorsness In article <2vasth@crl.crl.com> Todd Ourston, ourston@crl.com writes: >From what I gather, Softride has stopped making the aluminum models >because they were having problems with lateral flex (i.e., the handlebars >rocked from side to side). There are rumors that they will be coming out >with (a) carbon fiber, (b) titanium, or (c) a better aluminum model, but >for right now, the steel stems are the only safe bet. Hey, they're still >lighter than suspension forks! I've ridden a cromoly version of the Softride stem and found it far superior to the shocked forks I've ridden (admittedly, they were low-end versions). I've ordered two of the aluminum Softride stems for myself and my wife (to keep the same reach and 'cause we've were given a good price). After reading the reports on the net concerning the recall and redesign, I called Softride and asked what the story was. They said the two piece "dog-bone" on the top of the stem has been replaced with a single piece, making the stem stiffer. I did not find out if they are retro-fitting older versions of the stem (as mine is still to be shipped). I have spoken with a number of bike shop mechanics and they tell me I should be checking out the Manitou 3 or the RoxShox Mag 21 'cause the stem is only for low key, non-competitive riding. I ask 'em why and they give me a very weak argument about suspended versus unsuspended weight (have any of these guys ever taken even high school physics?). Then I ask them if they've ridden a bike with a Softride Stem and they never have. Then I ask them if they think the Ritchey team is non-competitive (last two Rainbow jerseys in the X-C) and why they would be willing to give up anything (like inferior performance) to Tomac and the rest. They usually hem and haw. Get a bike with a stem and find out for yourself. I'm not saying it's the best, but it works for a lot of cyclists -- and some of them (the Ritchey team) are pretty damn good. ------------------------------------------------------------------- Peter Thorsness __o Dept. of Molecular Biology _ \<._ University of Wyoming ( )/ ( ) Laramie, WY 82071-3944 Tel. (307) 766-2038 Fax. (307) 766-5098 Email: thorsnes@uwyo.edu ------------------------------------------------------------------- From: demicco1@llnl.gov (Mike DeMicco) Newsgroups: rec.bicycles.misc Subject: Re: >Experience with SOFTride stems?< I have the steel stem and have used it for a couple of years. My first one broke (at the handlebar clamp, on the underside) through normal riding. The new version that was sent looked to be a beefed up a little. They replaced it no problem, but I'm still a little worried because the clamp area still does not look beefy enough to me. It also has what appears to be aluminum vs. brass/bronze bushings and a cylinder of rubber inside the spring (to keep the stem from bottoming). I am a little confused about the supposed lack of stiffness of the aluminum version. The bottom link on the steel version is plastic (2 piece), which has very little stiffness, whereas the aluminum version has a two piece aluminum bottom link and the same bearings as the top dogbone (the steel has roll pins and what kind of bearing, I don't know). The bottom link has been a source of creaks, that go away when oiled (I used Tetrabike teflon lubricant -- worked well). In my opinion that the aluminum version is better. It also cost ~$90 more. _________________________________________________________ Opinions expressed here are my own and not my employer's. Mike De Micco Newsgroups: rec.bicycles.misc From: cmanry@snibble.eecs.wsu.edu (C. Manry) Subject: Re: >Experience with SOFTride stems?< In article <2vcsub$31k@crl.crl.com> ourston@crl.com (Todd Ourston) writes: >C. Manry (cmanry@stimpy.eecs.wsu.edu) wrote: Stuff removed... >How tight does Softride suggest these bolts should be tightened? Just untill there is not *alot* of handlebar wobble. Softride says there should be none. This keeps the pivots (bolts) from wearing faster. However you can have 'em loose as you desire. > How long, in your experience, does it take before the bolts need replacing? It depends on how often you take it apart and clean and relube it. Mine, without cleaning and relubing lasted two years with dusty riding almost every day! >Is that easy to do, or is the thing built to explode in your hand when >you disassemble the stem? Cake! 1) Take the stem off the bike (the hardest part of this opperation). 2) Remove any preload from the spring! With preload on it my fly apart once step 4 is done. Otherwise it fall gently apart. 2) Remove the bolt and nuts. (on the plastic you can't do this) 3) Look inside and you will see the inside faces of the bushings/pivots. 4) With a light hamer and a center punch tap on the inside faces of the bushings. They will pop out. Repeat with all of em. 5) Clean the surfaces where the pivots rotate on. 6) Relube with Teflon based grease (Softride recommends this) or others have used Lithium (sic) based grease. DO NOT USE oil based or sprays. You will get alot of black goo.... YUK! 7) Put it back together and place back on the bike and go! I felt truely (sic) stoopid for not doing my before. It is really easy. Enjoy.. ---- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Charles (skip) Manry / School of EECS / WSU, Pullman WA, 99164-2752 % % cmanry@eecs.wsu.edu / My opinions are my own and no one else! % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % CAC#4 Clearwater Amateur Cup August 21 Goal: Top 1/2 finish in my % % WIM#9 IEMBA MB FESTIVAL, 49 Degrees North class by end of summer % % Ski Mountain Aug 27/28 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Article 16785 of rec.bicycles.marketplace: From: cmanry@irl.eecs.wsu.edu (C. Manry) Subject: Softride Speaks! Answers to your questions. With some of the conjecture/rumors about the changes in the Softride sus. stems I decied to give Softride a call (1-800-557-6387). Question 1: Why is the Pre 1992 models of the Al stem being refited with a CNC machined part for the "Dogbone" on top? Softride: There was some problems with strength in the welds in the top part or "Dogbone" on the Al stems. Any stem with the dogbone can be shiped to us and we'll replace the part free. The CNC machined part is one whole piece of Al. (Note: I did not ask about a recall. Opps. However I can say that I have had my stem with dogbone for over 2 years before I took mine in for a refit. The change does seem to make it more stiffer in handelbar wiggle.) Question 2: Are you still making Al modles? There is some rumors about you not making new Al models. Softride: Yes we are still making Al models in 135 and 150mm lenghts. We just shipped some out today. Question 3: What are the lenghts in the Cro-mo version? Softride: They are: 140, 150, and 160mm lenghts. Question 4: There are some rumors about new designs and materials such as carbon-fiber. What's up? Softride: To my knowledge there is nothing new in the works. (Note: I am talking to Customer Service, not engineering...) That's it.... There was a comment that the richey team is using the cro-mo versions. This is true. However Richey is a steel only guy. He/they do not like Al. It may also be that the cro-mo comes in longer lengths. IMHO the richey team runs cro-mo due to marketing or length. Not because the Al models are "bad". Enjoy... ---- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Charles (skip) Manry / School of EECS / WSU, Pullman WA, 99164-2752 % % cmanry@eecs.wsu.edu / My opinions are my own and no one else! % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % CAC#4 Clearwater Amateur Cup August 21 Goal: Top 1/2 finish in my % % WIM#9 IEMBA MB FESTIVAL, 49 Degrees North class by end of summer % % Ski Mountain Aug 27/28 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Article 17021 of rec.bicycles.marketplace: From: wenner@molbio.cbs.umn.edu (Jay Wenner) Subject: Re: Softride Speaks! Answers to your questions. C. Manry (cmanry@irl.eecs.wsu.edu) wrote: : With some of the conjecture/rumors about the changes in the Softride sus. : stems I decied to give Softride a call (1-800-557-6387). : : Question 1: Why is the Pre 1992 models of the Al stem being refited with : a CNC machined part for the "Dogbone" on top? : : Softride: There was some problems with strength in the welds in the top : part or "Dogbone" on the Al stems. Any stem with the dogbone : can be shiped to us and we'll replace the part free. The CNC : machined part is one whole piece of Al. : : (Note: I did not ask about a recall. Opps. However I can say : that I have had my stem with dogbone for over 2 years before I : took mine in for a refit. The change does seem to make it more : stiffer in handelbar wiggle.) : : I asked Softride about this, and they said that anyone with 1992 models (black stem) can upgrade to a new Al for $100, or CrMolly for $40. It's the '93 models that are being retro'ed with a new "dogbone." I like the sounds of a retrofit rather than a 100 dollar bill. If the '93's (or just one or two here and there) had problems with the weld, it makes me nervous that the '92's wouldn't be any different. I guess I'll ride it 'til it breaks (or I break). Jay From: godogs@dogpower.Corp.Sun.COM (Rick Brusuelas) Newsgroups: rec.bicycles.marketplace Subject: Re: Softride Speaks! Answers to your ques In article 1xM@news.cis.umn.edu, wenner@molbio.cbs.umn.edu (Jay Wenner) writes: > C. Manry (cmanry@irl.eecs.wsu.edu) wrote: > : With some of the conjecture/rumors about the changes in the Softride sus. > : stems I decied to give Softride a call (1-800-557-6387). > : > : Question 1: Why is the Pre 1992 models of the Al stem being refited with > : a CNC machined part for the "Dogbone" on top? > : > : Softride: There was some problems with strength in the welds in the top > : part or "Dogbone" on the Al stems. Any stem with the dogbone > : can be shiped to us and we'll replace the part free. The CNC > : machined part is one whole piece of Al. > : > : (Note: I did not ask about a recall. Opps. However I can say > : that I have had my stem with dogbone for over 2 years before I > : took mine in for a refit. The change does seem to make it more I just called my Softride stem dealer (Fresh Air on Divisidero in San Francisco), and they said they would replace the "dogbone" on my 1993 AL 135mm Softride Stem for free. They said that a few stems had the problems with the welds and that Allsop (Softride) had sent out replacement parts that were CNC machined. They look better than the old piece, and they should be lighter, to boot! Rick Brusuelas Sun Library Newsgroups: rec.bicycles.misc Subject: Re: >Experience with SOFTride stems.< From: Peter Thorsness In article <1994Jul13.130743.23029@cc.usu.edu> , slg95@cc.usu.edu writes: >OK , my brother just bought an Allsop stiff bike fully suspended with softride >components. The elastomeric carbon fiber rear suspension rides exceptionally >nice when gotten used to, but the stem hasn't lived up to his high >expectations. As for the >stem idea, I'd skip it and make a real improvement. I've just acquired the new aluminum Softride stem. I must say that it has more then met my high expectations. We don't have _any_ smooth trails in Laramie and I'm very impressed with the way the stem takes the edge off on even the roughest downhills. Granted, I don't have much experience with RS Mag21's, Manitou III's or Halson Inversions, but the lower-end shocks I've ridden for a distance weren't good for anything. The stem is plenty stiff, takes nothing away from the quick handling characteristics of my Bridgestone MB1, is comparatively light, and is comparatively inexpensive. I tested the shock's I could get my hands on and the stem out performed (for me) anything else. I still find it amazing the number of people who write off suspension stems without having experienced it. The bottom line is that the stem is a viable option and should be sampled along with other suspension systems. It may work for you, it may not. From: anderson@pharmdec.wustl.edu (eric c. anderson) Newsgroups: rec.bicycles.tech Subject: Re: Does softride work? In article <30i4s6@server.st.usm.edu>, hamorris@whale.st.usm.edu (Hinton Ashley Morris) wrote: > > Does the softride stem really work? I imagine it would be kind to your > wrists, but it isn't helping your frame absorb anything. And is the > Girvin version of the flexi-stem worthwhile? > i suppose that this should be on the FAQ, but i don't think that it is. so i will give you a very biased opinion of the softride. the answer to your first question is a resounding _YES_. you are correct in that the frame doesn't do the absorbing, but big deal. the shock is absorbed, and contrary to what those who ride susp. forks and denigrate the softride think, your wheel does in fact stay in contact with the ground. the things i like most about the softride are that it is easily activated, yet soaks up bumps up to about 2 1/2-3" at least on the 150mm version which has a longer pivot range at the bar. there's no stiction, and bottoming out is tough to do, unless you're putting a lot of your weight right on the bar. maintenance is easy (a little tri-flow on the spring and bushings is all i've done in the 2 yrs. i've had mine), and setting it up and dialing it in can be done _on trail_ with a 4mm allen wrench (only one adjustment bolt). the other thing is that it doesn't change the frame geometry like a fork does. granted...this is something that you can adjust to fairly easily, but if your frame doesn't have a lot of standover height to begin with and you put a susp. fork on it, you lose about an inch of your standover height and the bike suddenly doesn't fit so well. there are a couple of bad things too about the softride. there's no way to control rebound, a complaint i've heard from a number of people at the shop i go to. a bunch of them ride them anyway though. you also lose a bit of lateral stability in the stem. this loss of stability however is small and predictable, unlike the stability lost with a fork which tends to be fairly severe (in my experience, esp. with rock shox and the Mani3's) and can't always be predicted. as for the flexstem, it only pivots on one bushing at the stem, so the relationship of the handlebars to the rest of the frame constantly changes, i.e. the bar rotates forward when the stem is activated, unlike the softride which pivots in 4 places and so goes straight up and down. it also has only about 1 inch of travel, making it not quite as plush as the softride. there are of course people who like it, but after test-riding a bike equipped with it, i chose the softride. hope this is of some help to you and answers your questions. eric -- BIG AIR... NOT BIG PANTS!!! --------------------------------- eric c. anderson anderson@pharmdec.wustl.edu 660 s. euclid box 8103 washington univ. school of medicine dept of molecular biol. and pharmacology st. loser, misery 63110 From: godogs@dogpower.Corp.Sun.COM (Rick Brusuelas) Newsgroups: rec.bicycles.tech Subject: Re: PLEASE HELP--Softride bar clamp problem!!! In article pfq@usenet.srv.cis.pitt.edu, skoop+@pitt.edu (James W Gourgoutis) writes: > Last night, I stayed up late installing my newly-arrived Softride stem. > After many minor aggravations (like dealing with a stubborn cable hanger > that was too thick and thus took up too many threads on my steerer tube), > I came across a BIG one. Well, a neat solution to your first problem is to get a stem-mounted cable hanger. Syncros makes a nice one called the "Hang Doggy" (love clever product names!). It tightens down on the stem (assuming you have a "conventional" and not a knee shredding aheadset ;-) and frees you from dealing with the headset stack. Costs about $10. > I can't get my bars clamped tight enough in the stem! > Should I call Softride and complain? Well, they are very helpful, so it sure couldn't hurt. But how about going to your the place where you bought it and asking/"bitchin'"? Uh oh... you bought it mail order, eh? Call them (they may allow you to return it for replacement). Oh, you bought it over the net??? Hopefully the seller has a good replacement policy ;-) > Any words of advice would be great! I've been waiting a LONG time to get > a Softride stem on my bike, and now that I've got one, this problem stuff > is getting VERY frustrating!! PLEASE HELP! Well, it is possible the stem clamp area is defective, but not very likely (I have never heard of or seen the described problem in the twenty some-odd users I know). But certainly calling the company wouldn't hurt (they do have a great customer service attitude). Good luck! Rick Brusuelas Sun Library Article 24301 of rec.bicycles.marketplace: From: blee@chiremv.chiron.com (Brian Lee) Subject: Review: Suspension Stems (long) Summary: Pros&cons, review of suspension stems Keywords: suspension,stem,allsop Suspension Stems by Brian Lee & Rick Brusuelas, 1994 ABSTRACT: Discussion of the differences between suspension stems and suspension forks, and a listing of the pros & cons of suspension stems. DESCRIPTION: The suspension stem discussed here is the Allsop-type, which employs a linkage parallelogram and a spring mechanism to effect shock-absorption. Two models on the market using this mechanism are the Allsop Softride, and a version produced by J.P. Morgen, a machinist based in San Francisco. There is also a version put out by J.D Components of Taiwan (advertised in Mountain Bike Action), however judging from illustrations, this unit does not employ the parallelogram design shared by Allsop & Morgen. Other Taiwanese models may also exist. The Girvin-type stem, which uses a simpler hinge and bumper, will not be directly addressed here, although some of the comments may also apply. The Allsop-type suspension stem (suspension stem) works on a different principal than a telescopic shock fork. Instead of only the front wheel moving to absorb shock, a stem allows the entire front end of the bike to move with obstacles while the rider's position does not change. All suspension requires some form of "inertial backstop" to operate. A theoretical suspension (stem or fork) loaded with zero mass will not function regardless of the size of obstacle encountered. This is because there is nothing to force the compression of the spring mechanism. It is essentially locked out. In a fork system, the weight of the bike & rider both provide the inertial backstop. In a stem system, the rider's weight on the handlebars provides the backstop. Because of this, the two systems "ride" differently. Since most of the weight comes from the pressure of the rider's hands, the stem system encourages a more weight-forward style of riding. Or perhaps placing the stem on a frame with a shorter top tube so the rider's weight is distributed more on the front end. (Shortening the front end has also been applied by frame builders on frames intended for use with suspension forks. Ex: Bontrager.) What does this mean to you and me? It means the suspension stem requires a certain amount of the rider's weight to be on it at all times in order to remain completely active. For the majority of riding, it's just fine. The only difference is in extremely steep descents, where you are forced to keep the weight back in order to keep from going over the bars. In this situation, much less weight is on the bars to activate the stem. Further, if one were to encounter a largish rock on such a descent, what does one do? The instinctive thing is to pull back a bit to unweight the front and help the front wheel over. This removes all the weight from the stem area, and you are now riding a rigid bike again. A fork system is also affected by weight shifts, but not quite to the extent that a stem is affected, because of the weight of bike & rider coming through the head tube to be distributed into the fork. Even if you were to remove your hands from the bars on a gnarly descent and hang with butt brushing the rear wheel, you are still applying weight to the bike through the pedals. All this, of course, is theoretical and YMMV. I, for one, am not always able to react to obstacles coming at me and leave the front end weighted. When that happens, I'm very glad I have suspension. Now enough theory stuff, here's a summary of the advantages & disadvantages of suspension stems: PROs 1) Lighter than a suspension fork. This depends on the existing stem/fork combination. If the current stem and rigid fork are heavy, then a suspension fork may be a better choice. For example, I've chosen the following items for comparison, as they represent the lightest and heaviest of commercially available stems & forks (weights for all stems are for conventional types - non-Aheadset): Litespeed Titanium 211g Ritchey Force Directional 375g Allsop Stem 625g Fat Chance Big One Inch 680g Tange Big Fork 1176g Manitou 3 1360g Lawwill Leader 1588g So say you have a Litespeed stem and a Fat Chance fork. The combined weight would be 891 g. Switching to an Allsop would change the combined weight to 1305 g, while a Manitou 3 would bring it to 1571 g. The Allsop has a weight advantage of 266 g (9.4 oz). OTOH, if you have a Ritchey stem & Tange Big Fork, the original weight would be 1551 g. Allsop stem => 1801 g. Manitou 3 => 1735 g. In this case, keeping the boat anchor of a fork and switching to the Allsop would be a weight penalty of 66 g (2.3 oz.). Of course, YMMV depending on your original equipment. 2) Does not affect frame geometry. A suspension fork retrofitted to a frame, *not* designed for suspension, raises the front end - sometimes as much as 1". This reduces the effective head angle and slackens the steering, slowing it down. This is especially true for smaller sized frames which, with their shorter wheel base, are affected to a greater degree by the raising of the head tube. A suspension stem provides suspension while preserving the handling of the bike. 3) Torsionally rigid fork. Telescopic forks all have a certain amount of flex to them, and the sliders are able to move up & down independently. This aspect of front suspension forks has spawned a new line of suspension enhancing products: stiffer fork braces, and bigger, heavier suspension hubs. All to stiffen up the fork. This is one reason suspension stems are favored by some riders who ride lots of tight, twisting single track. 4) No stiction. Stiction, or static friction, is friction that exists as the fork sliders rub against the stanchion tubes. This friction is an extra force that must be overcome for a fork system to activate. Not a problem on large hits. But more of a problem on small- and medium-size impacts. Because the stem has none, the stem responds better to small, high-frequency bumps (washboard) than many air-oil forks. 5) More boing for the buck. The Allsop stem provides up to 3" of stiction-free travel, at a cost of about $250, depending where you go. The majority of forks in this price range only offer 1" - 2" of travel, and are often heavy, flexy, and fraught with stiction. The fork could be stiffened, but at the additional cost of a stiffer fork brace or perhaps a suspension hub and a rebuilt wheel (e.g. fork brace - $90; hub - $80; rebuild - $100. Plus the original $350 for the fork. YMMV). 6) Better "feel". The stem allows you to have a rigid fork, which transmits more "information" back to the rider. This is a benefit when riding through creeks where you cannot see where your wheel is. 7) Less exposed to the environment. The stem is higher, more out of the way than suspension forks. Thus you can ride through creeks and mud without having to worry about your fork seals, or about contaminating the innards of the fork. Even if mud splashes on a suspension stem, the pivots are less sensitive to grit than sliders and stanchion tubes. 8) Ease of maintenance. There are no seals to replace or service, no oil to replace, no air pressure to adjust, and no bumpers to wear out. An occasional lube of the pivots is all that is needed. An extension of this is the ease of initial set up. For best results, you have to set suspension (fork or stem) to react according to your weight and riding style. With air/oil forks you may have to change oil, adjust pressure or change damping settings (if the fork has them). With bumper forks you may need to swap out bumper stacks and mix-n-match bumpers until you get what works for you. With the stem, the only adjustment is to increase or decrease the spring tension with an allen wrench. CONs 1) No damping. This is one of the main complaints from proponents of suspension forks. The suspension stem will give way to absorb shock, but the return is not controlled and cannot be adjusted. JP Morgen currently makes a suspension stem which employs oil-damping, but Allsop does not. 2) Requires adjustment to riding style. As mentioned above, the stem requires weight to be applied to it to function. This is also one of the complaints applied to the Softride rear suspension beam. The flip-side to this, according to riders of the Beam, is once the adjustment is made to "plant your butt on the saddle" the ride is extremely comfortable and affords excellent control by sticking the rear tire to the ground. 3) Stem "clunks" on rebound. The feeling is about the same as suspension bottoming out, except it happens on the rebound. This is not as much a problem on the Allsop as on the Morgen stem, which uses a hard plastic top-out bumper. This is a subjective complaint, as some riders claim not to notice it. 4) Stem not torsionally rigid. Another trade off. The stem is not proof to twisting forces and may be noticeable in hard, out-of-the-saddle efforts. Allsop has redesigned the top beam of their aluminum stem for 1994 to address this problem. Instead of the aluminum "dog bone" structure for the top linkage member, they've substituted a machined aluminum beam, reminiscent of a cantilever bridge. SUMMARY: In my opinion, a suspension stem is an excellent choice if one is retrofitting an existing bike, which has not been designed around a suspension fork. A suspension stem is also a very good choice if one's primary riding is twisty singletrack, where you need the sharp, precise steering of a rigid fork. There are undoubtedly situations for which a stem may not be ideal, but stems should not be dismissed as a viable form of suspension. The best thing to do is to try both types of suspension if you can, and see what you like better. -- Brian Lee | "Eschew Obfuscation" blee@cc.chiron.com | blee@chiremv.chiron.com | Disclaimer Datclaimer ***************************** I *think* that an email address for Allsop is ballsop@aol.com Snail mail is: Softride, Inc. 4208 Meridian Street Unit 2 Bellingham, WA 98226 Phone is: 1-800-557-6387 ~~~~~~~~~~~~~~~~~~~~~~~~~~ From: James W Gourgoutis To: gdharrie@ice.lakeheadu.ca Newsgroups: rec.bicycles.marketplace Subject: Re: Need advice on suspension stems In article you write: > >1) What type of terrain are suspension stems meant for? Anything but full-blown downhilling. >2) Will my size affect the stems' ability to absorb or react significantly? I doubt it. If you purchase a Softride stem, you can order various springs of increasing stiffness direct from them. I'm sure that the stiffest spring would be good for you. >3) Does anyone have reccomendations,opinions or experience with various stems? I own a 1989 Softride aluminum stem, with 150mm extension. I purchased it used about 4 months ago, from rec.bikes.marketplace, for $140. I really like it. It's weird at first, but it grows on ya! I've got mine mounted on a Cannondale 3.0 series MTB frame. My theory on sus-stems vs. sus-forks is this: If you find that you mostly ride out of the saddle while traversing the rough stuff, then a stem will work just fine. If you sit on your butt during the bumps, then maybe you aughta get a sus-fork. The ONLY problem with sus-stems is that front wheel jolts will travel through the frame and be felt at your butt. Since I began riding rigid MTB's, I was used to riding very "light" on the bars/saddle over bumps. Even now, I find that alot of times, my bars don't move as much as they probably should, since I don't put a lot of weight on them...of course, this changes when the going gets really nasty. The BIG wins with the sus-stems are: light weight, won't change your frame's geometry (some sus-forks, esp. the taller ones, raise the front end of the bike enough that the headtube angle is therefore slackened, which affects the handling of the bike), fairly cheap and work better than the cheap-o forks in that $$$ range, pretty low maintenance, no front-wheel flex. I'll email you a copy of the susFAQ that I wrote last summer. I've tried to include information on both stems and forks. Email me if you've got more Q's! Regards, Jim Gourgoutis -- | james gourgoutis [skoop+@pitt.edu] (bob#3068) -- ,o `why am I so late? | graduate school of mechanical engineering -- -\<, --couldn't decide | university of pittsburgh / pittsburgh, pa -- ( )/( ) which bike to ride!' Article 49209 of rec.bicycles.tech: Path: newsfeed.pitt.edu!gatech!news.sprintlink.net!cs.utexas.edu!uwm.edu!lll-winken.llnl.gov!overload.lbl.gov!agate!usenet From: mikef@physics.berkeley.edu (Michael Fuhrer) Newsgroups: rec.bicycles.off-road,rec.bicycles.tech Subject: Re: Softride stem (minor) problem Date: 15 May 1995 20:58:36 GMT Organization: University of California, Berkeley Lines: 26 Sender: mikef@128.32.124.10 Distribution: world Message-ID: <3p8f9s@agate.berkeley.edu> References: <3p5o4o@sun.lclark.edu> NNTP-Posting-Host: bir5mac3.berkeley.edu X-Posted-From: InterNews 1.0.4@128.32.212.29 X-Authenticated: mikef on POP host 128.32.124.10 Xref: newsfeed.pitt.edu rec.bicycles.off-road:13652 rec.bicycles.tech:49209 In article <3p5o4o@sun.lclark.edu> mikem@sun.lclark.edu (Mike Muronaka) writes: > Running a 140mm stem sunk all the way into the headset puts my handlebar > a little higher than I'd like it to be on my Bridgestone MB-3. Any > creative ways of getting it lower, seeing that the Softrides aren't made > in 0 or negative degree rises? I have a standard headset, the bars are > about saddle level, and my seatpost is as high as my short legs will let > it go. (I bought the bike off a friend a couple years ago. It gives me > only a couple inches of standover, but otherwise fits well.) The only > thing I can think of is installing a downhill bar upside-down, making my > front resemble a yak. (hey, if it works....) > > > Mike My Bridgestone MB-4 had an unusually high headset stack. You can probably lower your stem maybe half a cm or more by cutting the fork down and removing the spacers. A lower profile headset might help even more. I've seen people use the downhill bar upside down method. Seems to work fine, even if it does look funny. This can also be used to get an effectively shorter stem length for a Softride, since they only come in Long and Longer. (Since it's a Softride, spring rate isn't affected.) Michael Fuhrer From demicco1@llnl.gov Mon Feb 26 13:25:11 1996 Date: Mon, 26 Feb 1996 10:03:45 -0800 From: Mike DeMicco To: James W Gourgoutis Subject: Softride Stem Hi James, As a fellow Softride stem owner, I thought I'd let you know of a new lubricant trick I just tried with the steel stem bushings. Keep in mind that I've only put one ride on the stem since I tried it, so it may not work long term. I've been plagued by creaks and squeaks in my stem for the years I've used it. It seems the bushings near the stem quill lose their lubricant after a while and squeak badly. My latest lube trick is to wrap the aluminum bushings with teflon plumbers tape, put silicone vacuum grease over them, and reinstall. Vacuum grease is real thick and thus doesn't ooze out like normal grease does. It does, however, still go away after a period of time. I tried Dupont teflon grease once, and my bushings wore out rather quickly. I don't recommend it for this purpose. Did you get the retrofit damper for your stem? If so, does it make a noticable improvement? -- Mike DeMicco **This file last updated on March 22, 1996**