Cycling Equipment · Public discussion

A Tire Pump Problem

Started by DougC · · Last activity · 5 posts · 540 views

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Cycling Equipment
Published
9 October 2006
Last activity
11 October 2006
Original author
DougC
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  1. (-warning, weirdness ahead-)
    I got a bicycle (Rans Fusion) and put an engine kit on (Golden Eagle).
    The engine kit uses belt-drive, and has a big plastic ring that snaps
    onto the spokes on the left side of the rear wheel. The plastic ring
    extends to the centerline of the rim, and only leaves two inches of
    space between the rim and the ring.

    The Joe Blow Sport floor pump I have (with a conventional Siamese
    schrader/presta head) won't fit on, and the Serfas MS-1 mini-pumps I've
    been preferring for a while won't fit on either. Most pumps I've seen or
    owned previously, I suspect will not fit on.

    The only pumps that I have found that I am pretty certain will fit on
    are the Topeak Micro Rocket pumps (aluminum and carbon), and the few
    frame pumps around that still have hoses. ....Are there any mini-pumps
    that have hoses? (I'd much prefer a pump to a CO2 capsule inflator) The
    Micro Carbon is easily available from many sources but the aluminum one
    (last years model) is backordered already, as if production is already
    tailing off. The Micro Rockets didn't get great reviews; I'd hate to be
    dependent on ONE brand/model of tire pump--especially after its no
    longer made.

    Alternately, what would be great is if someplace sold a short extension
    hose that would have a "male" presta valve on one and and a "female"
    presta on the other. Does anyone make such a thing?

    Or would the pump choices be better if I switched to Schrader tubes? The
    rims are drilled and have spacers. Does anyone make an "extension hose"
    for schrader pumps?

  2. DougC said:

    (-warning, weirdness ahead-)
    I got a bicycle (R[ANS] Fusion) and put an engine kit on (Golden Eagle).
    The engine kit uses belt-drive, and has a big plastic ring that snaps
    onto the spokes on the left side of the rear wheel. The plastic ring
    extends to the centerline of the rim, and only leaves two inches of
    space between the rim and the ring....

    That is even less space for a pump head than the ISO 203-mm wheels [1]
    on my push scooter have.

    [1] 20-spokes, radial lacing.

    --
    Tom Sherman - Here, not there.

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

    Quoted message said:

    (-warning, weirdness ahead-)
    I got a bicycle (Rans Fusion) and put an engine kit on (Golden Eagle).
    The engine kit uses belt-drive, and has a big plastic ring that snaps onto
    the spokes on the left side of the rear wheel. The plastic ring extends to
    the centerline of the rim, and only leaves two inches of space between the
    rim and the ring.

    The Joe Blow Sport floor pump I have (with a conventional Siamese
    schrader/presta head) won't fit on, and the Serfas MS-1 mini-pumps I've
    been preferring for a while won't fit on either. Most pumps I've seen or
    owned previously, I suspect will not fit on.

    The only pumps that I have found that I am pretty certain will fit on are
    the Topeak Micro Rocket pumps (aluminum and carbon), and the few frame
    pumps around that still have hoses. ....Are there any mini-pumps that have
    hoses? (I'd much prefer a pump to a CO2 capsule inflator) The Micro Carbon
    is easily available from many sources but the aluminum one (last years
    model) is backordered already, as if production is already tailing off.
    The Micro Rockets didn't get great reviews; I'd hate to be dependent on
    ONE brand/model of tire pump--especially after its no longer made.

    Alternately, what would be great is if someplace sold a short extension
    hose that would have a "male" presta valve on one and and a "female"
    presta on the other. Does anyone make such a thing?

    Or would the pump choices be better if I switched to Schrader tubes? The
    rims are drilled and have spacers. Does anyone make an "extension hose"
    for schrader pumps?

    How about a Silca Pump Valve Head like this one maybe
    http://biketiresdirect.com/productdetail.asp?p=SNSBH&tnum=3387113&c=4513525
    Or this Silca valve head for Schraeder valve stems
    http://biketiresdirect.com/productdetail.asp?p=SNJWI&tnum=3387113&c=4513525
    Of course that leads right in to the Silca pumps too. Like this one
    http://biketiresdirect.com/productdetail.asp?p=SNSIL&tnum=3387113&c=4513525
    Here is a Silca valve pump head with hose too, you can change out the pump
    hose if needed.
    http://biketiresdirect.com/productdetail.asp?p=SNSHH&tnum=3387113&c=4513525

  4. On Mon, 09 Oct 2006 18:12:25 -0500, DougC <[email hidden]>

    Quoted message said:

    (-warning, weirdness ahead-)
    I got a bicycle (Rans Fusion) and put an engine kit on (Golden Eagle).
    The engine kit uses belt-drive, and has a big plastic ring that snaps
    onto the spokes on the left side of the rear wheel. The plastic ring
    extends to the centerline of the rim, and only leaves two inches of
    space between the rim and the ring.

    The Joe Blow Sport floor pump I have (with a conventional Siamese
    schrader/presta head) won't fit on, and the Serfas MS-1 mini-pumps I've
    been preferring for a while won't fit on either. Most pumps I've seen or
    owned previously, I suspect will not fit on.

    The only pumps that I have found that I am pretty certain will fit on
    are the Topeak Micro Rocket pumps (aluminum and carbon), and the few
    frame pumps around that still have hoses. ....Are there any mini-pumps
    that have hoses?

    Topeak Road Morph and Mountain Morph both have hoses. I have both,
    and they work well; the Road Morph has the advantage of including a
    guage in the valve chuck.

    Quoted message said:

    Alternately, what would be great is if someplace sold a short extension
    hose that would have a "male" presta valve on one and and a "female"
    presta on the other. Does anyone make such a thing?

    Check with www.yellowjersey.org to see if they have one; I seem to
    recall seeing one for Schraders there, and they might have a Presta as
    well.

    Quoted message said:

    Or would the pump choices be better if I switched to Schrader tubes?

    IMO, the only thing to be gained is ease of using the hose at a gas
    station, where the only chuck provided is usually Schrader.

    Quoted message said:

    The
    rims are drilled and have spacers. Does anyone make an "extension hose"
    for schrader pumps?

    Yes, the latter definitely exists. If in no other form, it was a part
    on the windshield washer system of the old VW Super Beetle...but as
    stated, I think a better one exists at the website that I noted.
    --
    Typoes are a feature, not a bug.
    Some gardening required to reply via email.
    Words processed in a facility that contains nuts.

  5. Werehatrack said:


    Topeak Road Morph and Mountain Morph both have hoses. I have both,
    and they work well; the Road Morph has the advantage of including a
    guage in the valve chuck.

    I'd second that. The head on the Morph pumps is very compact, and the
    pump has worked well for me. I have several of them on different bikes.

    I *think* the Morph head is available seperately, but you'll have to
    ask Topeak. The only pump head listed is the Smarthead for floor pumps:
    http://www.topeak.com/2006/products/floorpumps/smarthead.php
    which looks too big for your setup.

    Jeff

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