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Monotubes vs Triangulation

Started by Alan Mushnick · · Last activity · 50 posts · 3,364 views

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Recumbent bicycles
Published
15 April 2004
Last activity
15 June 2004
Original author
Alan Mushnick
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  1. "nogoslow" <[email hidden]> wrote in message news:d-
    [email hidden]... [...]

    Quoted message said:

    My brothers son is in Iraq in the worst fighting you could
    imagine in the marine corp Ed so I hope you will cut me
    some slack for worry. And Tom is a cool guy too with some
    good points but would like to see just bent posts on this
    site to escape from the awful realties of life guy's. The
    worry of this war has just got me down. And my family
    worries about our Marine each day. I just can't help it
    Ed. It is real up close and personal for me. Well, back to
    bents and away from the war.....

    Kevin, the US has had to carry a heavy burden in the world
    ever since WWII. This burden has impacted us all in our
    lifetimes in one way or another. I get so mad at the
    Europeans for not picking up their fair share of the burden,
    but I suppose it is just human nature to let the other guy
    do it if you can get away with it. If the war does not
    improve soon Bush is going to be in trouble as the American
    people are not long suffering anymore. In a sense we are not
    too different from the Europeans.

    But this war has been thrust upon us and there is no
    escaping it. We will either fight it overseas or we will
    fight it here in the homeland. There is no more fervent
    supporter of our military than me. Your nephew is doing the
    work of the just and he is on the side of the angels. Let us
    hope for the best. The war will have to be prosecuted with
    vigor until the Islamic extremists are defeated and have
    been wiped off the face of the earth. I am afraid it may
    take a generation or more to accomplish this. So we had all
    best cultivate the virtue of patience.

    --
    Regards,

    Ed Dolan - Minnesota

  2. "Tom Sherman" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Edward Dolan wrote:

    [nothing]

    Finally, a post by Mr. Dolan that I can agree with
    completely. 😉

    I still haven't quite got the hang of how my OE newsreader
    functions. It is much easier to post now than with the
    Google posting, but if I go too fast I find that I am
    sending without having written. Now that I am using a
    newsreader I am not looking in on the Google web site as
    much as I used to either, so I feel kind of disconnected. I
    will have to slow down some and be more deliberate as I
    cannot afford to be making mistakes in posting when I am
    taking others to task for sloppiness in their posting.

    --
    Ed Dolan - Minnesota

  3. Wow, you guys convinced me. I'm selling my Bacchetta and
    buying a Colnago.

    Your collective lack of perspective truly amazes me. Fast-
    paced recumbentism is growing and will continue to do so as
    word spreads, as fit baby boomers age, and as manufacturers
    innovate with more aerodynamic and lighter recumbents.

    "Edward Dolan" <[email hidden]> wrote in message news:IN-dnRB3kLc00xndRVn-
    [email hidden]...

    Quoted message said:


    "nogoslow" <[email hidden]> wrote in message news:d-
    [email hidden]... [...]

    Quoted message said:

    The only thing as a group to attract slow out of shape
    riders more than recumbents is trike riders. I love both
    recumbents and the trikes you design. Way cool bikes.
    Fast people in the Midwest ride DF bikes. They will
    never switch. When on the Aero I am so much faster that
    I don't get a good workout so when I ride with my DF
    buddies I ride the DF bike. The Aero speed anoys. So, I
    ride the bent alone. We have a midwest fast weekly
    training ride that attracts at times over 200 people on
    a Saturday morning. These are the top riders in the
    area. None ride bents. None ever will inspite of the
    speed being demonstrated to them. There just is no
    market here for fast bents. it would be easier to sell
    one of your trikes to an older Gent with some disposable
    income. I notice the Aero sells down south where there
    seem to be a high concentration of older people with
    disposable income for $4000 dollar bikes. Well aware of
    what john did and it is no suprise to me. Fast bents in
    Ultras have a huge advantage over DF bikes. I am
    building a 1 speed no suspension moutain bike for the
    trails around my house. one speed bikes are pure and
    need very little maintinance on a muddy trail. They have
    race catagories in WORRs series races now. Thousands of
    people show up at Mt. bike events and few show up at
    bent races. So the whole thing is boring.

    Excellent post nogoslow and a reality check for many
    others on this newsgroup. What you say about the cycling
    culture takes me back 25 years when I was a part of it.
    Alas, no more. All this constant emphasis on recumbents
    being fast totally misses the point. If you are into speed
    you will want to ride with others and perhaps race and
    that means the world of uprights, not recumbents (see any
    of Fab's posts to this newsgroup). Recumbents are
    basically for us older gents with some disposable income.
    Once you give up on speed cycling actually gets to be much
    more enjoyable, but it takes maturity to appreciate it.

    --
    Ed Dolan - Minnesota (yesgoslow)

  4. Quoted message said:
    Quoted message said:

    You must have some data to support this. So what are the
    frame weights ?

    The Rans Force5 steel frame is about a pound lighter than
    the Bacchetta Strada/Corsa. Here are direct quotes from
    the manufacturers themselves:

    "The medium Corsa steel frame, with powdercoat, weighs 6.6
    lbs . . . weighed without their seat mounting
    hardware/delrin seat clamp." source: sports.groups-sports.groups-
    .yahoo.com/group/Bacchetta_Bikes/message/3170

    "The standard size wheel base (Force5) frame weighs in at
    5.66 lbs" source: ransbikes.comITRForce5II.htm

    I remember Bill Cook telling me the Barcroft Dakota frame
    is 4.8 pounds (I don't know if that was before or after
    painting). I think the Bachetta and Volae design need
    heavier material to maintain the stiffness of the rear
    wheel stays.

    Notice the Force5 and Barcroft Dakota are hybrid designs. A
    large diameter monotube is augmented by a smaller diameter
    rear triangle. This hybrid approach combines the light
    weight simplicity of a monotube with the stiffness of a
    triangulated rear end.

    Notice that welding adds weight, manufacturing cost, and
    compromises the structural continuity. The Barcroft design
    uses mandrel bent tubes for both the monotube and the rear
    stays (two U shaped pieces) so the number of tubes and welds
    are reduced.

    The Barcroft design in particular is perhaps the most
    elegant on the market since the rear triangle accomodates
    standard upright accessors (fenders, racks, lighting,
    kickstands, trailer hitches, etc).

    Enjoy!

    - Peter

  5. [email hidden] (Peter Sichel) wrote in message news:<[email hidden]>...

    Quoted message said:
    Quoted message said:
    Quoted message said:

    You must have some data to support this. So what are
    the frame weights ?

    The Rans Force5 steel frame is about a pound lighter
    than the Bacchetta Strada/Corsa. Here are direct quotes
    from the manufacturers themselves:

    "The medium Corsa steel frame, with powdercoat, weighs
    6.6 lbs . . . weighed without their seat mounting
    hardware/delrin seat clamp." source: sports.grou-sports.grou-
    ps.yahoo.com/group/Bacchetta_Bikes/message/3170

    "The standard size wheel base (Force5) frame weighs in
    at 5.66 lbs" source:
    ransbikes.comITRForce5II.htm

    I remember Bill Cook telling me the Barcroft Dakota frame
    is 4.8 pounds (I don't know if that was before or after
    painting). I think the Bachetta and Volae design need
    heavier material to maintain the stiffness of the rear
    wheel stays.

    Notice the Force5 and Barcroft Dakota are hybrid designs.
    A large diameter monotube is augmented by a smaller
    diameter rear triangle. This hybrid approach combines the
    light weight simplicity of a monotube with the stiffness
    of a triangulated rear end.

    Notice that welding adds weight, manufacturing cost, and
    compromises the structural continuity. The Barcroft design
    uses mandrel bent tubes for both the monotube and the rear
    stays (two U shaped pieces) so the number of tubes and
    welds are reduced.

    The Barcroft design in particular is perhaps the most
    elegant on the market since the rear triangle accomodates
    standard upright accessors (fenders, racks, lighting,
    kickstands, trailer hitches, etc).

    Enjoy!

    - Peter

    The Ti-Aero frameset bare is 3.5 lbs I believe. I know its
    one of the lightest around. I do believe that weight could
    be taken off the M-5 seat but would have to be designed from
    the ground up. Little guys could have far less carbon and
    they could be narrower for a racer to take the weight down.
    The Aero is not a pure speed bike for a track but a road
    bike for every day riding. I still think the seat and
    mounting hardware could be lightened up a lot. I weigh 150
    lbs in season and I suppose could use a much lighter seat.
    But a 240 lb guy? Another area to speed up the bike would be
    some carbon handle bars built with some kind of aero profile
    that would also serve to hide any exposed cables. Talking
    with the "B" principals I know the Strada is beefy and it
    was intended to be so. I know some big guys riding Strada's
    with no problems. Remember the weight winnie days of
    Mountain bikes when every thing was stupid light and major
    parts breaking and people getting hurt? All this stuff is in
    fulx right now but I can say the 'bent market has been on a
    big diet the last couple of years. The Aero being the
    lightest "manufactured bike" out there I think. The seat on
    the Aero is a real place for some weight savings IMHO.

  6. "Steve Christensen" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    In article
    <[email hidden]>, nogoslow


    says...

    Quoted message said:
    Quoted message said:


    "> I don't get your insistence on "sponsoring riders". We
    can all ride and

    Quoted message said:

    compare bents at our nearest dealers.

    If you want a fast bike racing and competition is what
    drives performance. No one else in 'bent manufacturing is
    doing what Bacchetta is doing. Showing up at races and
    fast events and invitationals and proving that there
    bikes are fast. And sorry, what do you know about a bikes
    performance? The fast guys know what works and what does
    not work for speed. Now comfort and a seat for a fat ass
    is another matter. I try not to confuse the two issues.
    So buy a bike and ride it what ever one that is and get
    that fat ass smaller. Bent riders are quite a joke IMHO
    in the fitness department. Rich Pinto has done a lot to
    improve 'bents image with the Aero and it is time for the
    other manufacturers to step up or shut up about the
    performance of there bikes.

    Kevin,

    Does Bacchetta pay you for all of your pro-Bacchetta
    rants? Just curious,


    since

    Quoted message said:

    I've seen "Team Bacchetta" after your name in a couple
    of places.

    If they do pay you it makes me wonder about Bacchetta,
    since you're such


    an

    Quoted message said:

    elitist snob, with such poor writing skills, that I don't
    think I would


    want you

    Quoted message said:

    representing my company.

    I mean, what better way to attract all of us to your
    product then to


    insult us,

    Quoted message said:

    call us all fat asses, and say that our level of fitness
    is a joke.

    Interesting marketing strategy. Did Rich Pinto think that
    up, or was that


    you?

    Quoted message said:


    Steve Christensen

    I think this guy is trolling. It's quite likely an alt for
    Flabbio trying a different rant from a new angle. 🙂

  7. Sticker Jim said:

    "Steve Christensen" <[email hidden]> wrote in
    message "]news:[email hidden]...

    Quoted message said:

    In article
    <[email hidden]>, nogoslow

    says...

    Quoted message said:
    Quoted message said:

    "> I don't get your insistence on "sponsoring riders". We
    can all ride and

    >compare bents at our nearest dealers.

    If you want a fast bike racing and competition is what
    drives performance. No one else in 'bent manufacturing is
    doing what Bacchetta is doing. Showing up at races and
    fast events and invitationals and proving that there
    bikes are fast. And sorry, what do you know about a bikes
    performance? The fast guys know what works and what does
    not work for speed. Now comfort and a seat for a fat ass
    is another matter. I try not to confuse the two issues.
    So buy a bike and ride it what ever one that is and get
    that fat ass smaller. Bent riders are quite a joke IMHO
    in the fitness department. Rich Pinto has done a lot to
    improve 'bents image with the Aero and it is time for the
    other manufacturers to step up or shut up about the
    performance of there bikes.

    Kevin,

    Does Bacchetta pay you for all of your pro-Bacchetta
    rants? Just curious,

    since

    Quoted message said:

    I've seen "Team Bacchetta" after your name in a couple
    of places.

    If they do pay you it makes me wonder about Bacchetta,
    since you're such

    an

    Quoted message said:

    elitist snob, with such poor writing skills, that I don't
    think I would

    want you

    Quoted message said:

    representing my company.

    I mean, what better way to attract all of us to your
    product then to

    insult us,

    Quoted message said:

    call us all fat asses, and say that our level of fitness
    is a joke.

    Interesting marketing strategy. Did Rich Pinto think that
    up, or was that

    you?

    Quoted message said:

    Steve Christensen

    I think this guy is trolling. It's quite likely an alt for
    Flabbio trying a different rant from a new angle. 🙂

    Kevin "Nogoslow" is a real person.

    --
    Tom Sherman – Quad City Area

  8. "Tom Sherman" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    Sticker Jim said:

    "Steve Christensen" <[email hidden]> wrote in
    message "]news:[email hidden]...

    Quoted message said:

    In article
    <[email hidden]>,
    nogoslow

    says...

    Quoted message said:

    >"> I don't get your insistence on "sponsoring riders".
    >We can all ride and
    >
    >>compare bents at our nearest dealers.
    >
    >If you want a fast bike racing and competition is what
    >drives performance. No one else in 'bent manufacturing
    >is doing what Bacchetta is doing. Showing up at races
    >and fast events and invitationals and proving that
    >there bikes are fast. And sorry, what do you know about
    >a bikes performance? The fast guys know what works and
    >what does not work for speed. Now comfort and a seat
    >for a fat ass is another matter. I try not to confuse
    >the two issues. So buy a bike and ride it what ever one
    >that is and get that fat ass smaller. Bent riders are
    >quite a joke IMHO in the fitness department. Rich Pinto
    >has done a lot to improve 'bents image with the Aero
    >and it is time for the other manufacturers to step up
    >or shut up about the performance of there bikes.

    Kevin,

    Does Bacchetta pay you for all of your pro-Bacchetta
    rants? Just


    curious,

    Quoted message said:
    Quoted message said:


    since

    Quoted message said:

    I've seen "Team Bacchetta" after your name in a couple
    of places.

    If they do pay you it makes me wonder about Bacchetta,
    since you're such

    an

    Quoted message said:

    elitist snob, with such poor writing skills, that I
    don't think I would

    want you

    Quoted message said:

    representing my company.

    I mean, what better way to attract all of us to your
    product then to

    insult us,

    Quoted message said:

    call us all fat asses, and say that our level of fitness
    is a joke.

    Interesting marketing strategy. Did Rich Pinto think
    that up, or was


    that

    Quoted message said:
    Quoted message said:


    you?

    Quoted message said:

    Steve Christensen

    I think this guy is trolling. It's quite likely an alt
    for Flabbio


    trying a

    Quoted message said:
    Quoted message said:

    different rant from a new angle. 🙂

    Kevin "Nogoslow" is a real person.

    This is where I came in 20 years ago when Easy Racer's Tour
    Easy (Gold Rush) and Lightning Dynamics' P-38 were all the
    rage for being fast. They were both being raced at the time
    and winning a few races and so were being touted as fast
    recumbents. Alas, there is no recumbent ever invented for
    being fast that I can't climb aboard and be as slow as
    molasses. This newsgroup ought to be split in two - between
    those who wanna be fast and all the rest of us who are slow,
    slower, and slowest. That way the vast majority of us would
    not have the aggravation of seeing these posts where various
    idiots are constantly crowing about how fast they are on
    this or that recumbent. In the grand scheme of things, speed
    on a bike ranks near the bottom.

    --
    Ed Dolan - Minnesota

  9. "David" <[email hidden]> wrote in message
    -"]news:[email hidden]-
    m... [...]

    Quoted message said:

    If the Aero is too fast a bike for your df buddies try
    something a bit slower & cheaper. I ride my faired GRR
    with the df riders in my bike club and, for the most part,
    it isn't a bad fit. I am faster on the downhills and a
    little slower on the uphills but about equal on the flats
    and gentle rollers. The group I ride with appreciates
    tucking in behind me going into a headwind. Sailing along
    with a tailwind we can really get cranking along pretty
    fast on the flats. When I get way out ahead of everybody
    on a downhill I either slow down and wait for them or they
    pass me going up the next hill. Either way I try to stay
    with the group and get neither to far ahead or behind.

    Most unusual that you should be able to stay with uprights
    in hilly country. I have never seen it myself. Normally, you
    will never make up on the downhills what you lose on the
    uphills. You will fall behind and never be seen nor heard
    from again.

    --
    Ed Dolan - Minnesota

  10. On Tue, 15 Jun 2004 11:33:37 -0500, "Edward Dolan" <[email hidden]>

    Quoted message said:

    Most unusual that you should be able to stay with uprights
    in hilly country. I have never seen it myself. Normally,
    you will never make up on the downhills what you lose on
    the uphills. You will fall behind and never be seen nor
    heard from again.

    Rolling hills are pretty good for recumbents - parts of
    Missouri and NE Kansas for example. Pennsylvania OTOH
    insists on nasty short climbs and stop signs at the bottom
    of every downhill. Makes a 50 mile ride feel like a hundred.

    Curtis L. Russell Odenton, MD (USA) Just someone on
    two wheels...

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