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!
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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 %
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% 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 %
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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
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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**