Cycling Equipment · Public discussion

Shimano pneumatic shifting system?

Started by John Appleby · · Last activity · 6 posts · 1,122 views

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Cycling Equipment
Published
30 July 2003
Last activity
31 July 2003
Original author
John Appleby
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6
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  1. Hi,

    I was talking to someone managing a bike shop in central London earlier... he claimed rather a lot
    of things, much of which seemed to be spurious; mostly that he had this and that worth this much and
    that much (la la la).

    Amongst his claims was that he was testing stuff "way beyond XTR", which included the "new" Shimano
    pneumatic gearing system. This makes no sense to me because unless you compress the whole system,
    air is too springy to provide accurate shifting. And if you do compress the system it strikes me as
    prone to leaks.

    He also claimed that Specialized's M4/5 framsets were [censored] and that everyone should buy Scandium
    frames because they last forever. Hmm.

    Should he be sentenced to a mental institution or is there any truth to his claims?

    Regards,

    John

  2. The Shimano Airlines air shifting system isn't anything new. That's the only one I'm aware of.

    It's been around...basically for downhill "one way" shifting. There is a set on ebay here that
    should give you an idea of what it is/does.

    cgi.ebay.comeBayISAPI.dll

    "John Appleby" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Hi,

    I was talking to someone managing a bike shop in central London earlier... he claimed rather a lot
    of things, much of which seemed to be spurious; mostly that he had this and that worth this much
    and that much (la la la).

    Amongst his claims was that he was testing stuff "way beyond XTR", which included the "new"
    Shimano pneumatic gearing system. This makes no sense


    to

    Quoted message said:

    me because unless you compress the whole system, air is too springy to provide accurate shifting.
    And if you do compress the system it strikes me as prone to leaks.

    He also claimed that Specialized's M4/5 framsets were [censored] and that


    everyone

    Quoted message said:

    should buy Scandium frames because they last forever. Hmm.

    Should he be sentenced to a mental institution or is there any truth to


    his

    Quoted message said:

    claims?

    Regards,

    John

  3. "John Appleby" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Hi,

    I was talking to someone managing a bike shop in central London earlier... he claimed rather a lot
    of things, much of which seemed to be spurious; mostly that he had this and that worth this much
    and that much (la la la).

    Amongst his claims was that he was testing stuff "way beyond XTR", which included the "new"
    Shimano pneumatic gearing system. This makes no sense


    to

    Quoted message said:

    me because unless you compress the whole system, air is too springy to provide accurate shifting.
    And if you do compress the system it strikes me as prone to leaks.

    He also claimed that Specialized's M4/5 framsets were [censored] and that


    everyone

    Quoted message said:

    should buy Scandium frames because they last forever. Hmm.

    Should he be sentenced to a mental institution or is there any truth to


    his

    Quoted message said:

    claims?

    Regards,

    John

    Sounds like the former to me. Thats one shop I would probably avoid unless he "manages" and leaves
    the rest of the the staff to get on with it.

    Stan Cox

  4. Quoted message said:

    Sounds like the former to me. Thats one shop I would probably avoid unless he "manages" and leaves
    the rest of the the staff to get on with it.

    No, he has a big mouth and won't shut up 🙂

    I shan't be going there again, mostly because www.chainreactioncycles.com is SO much cheaper than
    any other UK outlet. It frustrates me a little because I like supporting local shops, but I refuse
    to pay 25% more for the pleasure!

    John

  5. "CL" <chetliew(-at_)comcast.net> wrote in message "]news:[email hidden]...

    Quoted message said:

    The Shimano Airlines air shifting system isn't anything new. That's the


    only

    Quoted message said:

    one I'm aware of.

    It's been around...basically for downhill "one way" shifting. There is a


    set

    Quoted message said:

    on ebay here that should give you an idea of what it is/does.


    cgi.ebay.comeBayISAPI.dll

    That sounds like what he was talking about. An interesting system but it seems to be a very
    limited appeal.

    I certainly wouldn't go so far as to say that it was "beyond XTR". Oh well, he can continue to live
    in La La land 🙂

    Regards,

    John

  6. spam-<< Amongst his claims was that he was testing stuff "way beyond XTR", which included the "new"
    Shimano pneumatic gearing system. >><BR><BR>

    "Airlines'...saw it a few years ago...

    Also see that the 'new' XTR crank is having bearing problems...anybody else see/hear this?? shimano
    is not particularly coorperative, but will send 'improved' bearings...

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

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