Cycling Equipment · Public discussion

Tandem rear hubs

Started by David Damerell · · Last activity · 5 posts · 322 views

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Cycling Equipment
Published
15 May 2006
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15 May 2006
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David Damerell
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  1. I have been adjusting the rear hub on our tandem and becoming intensely
    frustrated. This is a Shimano hub with cup and cone bearings. There's no
    adjusting the right-hand side cone, because it is inside the freehub body,
    so the left-hand one has to be adjusted. This seems inherently trickier to
    get right than I am used to c&c bearings being, but what really makes it
    agonising is that then the drum brake has to be screwed down on top of it
    without jiggering the adjustment. Furthermore the axle nuts seem to like
    to twist the axle slightly, but obviously I should just replace the axle
    with a hollow QR one. We carry two locks and anyway the rear wheel would
    be a nightmare to steal because of the way the drum brake is lovingly
    intertwined with everything.

    In any case persistent maladjustment has destroyed one set of cones and I
    suspect it will eventually destroy the cups. Hence I've reached the point
    where I'm willing to throw money at the problem.

    Can anyone recommend tandem rear hubs which are sufficiently robust for
    loaded touring, accomodate the Arai drum brake, come in 140mm spacing and
    48 holes, and ideally use cartridge bearings or failing that are as
    straightforward to adjust as possible? Bonus points if the answer isn't
    shelling $400 for a Phil Wood, although I will if I absolutely have to.
    --
    David Damerell <[email hidden]> flcl?
    Today is Second Sunday, May - a weekend.

  2. David Damerell said:

    I have been adjusting the rear hub on our tandem and becoming intensely
    frustrated. This is a Shimano hub with cup and cone bearings. There's no
    adjusting the right-hand side cone, because it is inside the freehub body,
    so the left-hand one has to be adjusted. This seems inherently trickier to
    get right than I am used to c&c bearings being, but what really makes it
    agonising is that then the drum brake has to be screwed down on top of it
    without jiggering the adjustment.

    Shimano hubs usually have plenty of spacers. Put a thin locknut directly
    against the adjusting cone, and replace the spacer by a corresponding
    thinner one. Now you can adjust the hub without the brake making things
    difficult
    --
    ---
    Marten Gerritsen

    INFOapestaartjeM-GINEERINGpuntNL
    www.m-gineering.nl

  3. David Damerell said:

    I have been adjusting the rear hub on our tandem and becoming intensely
    frustrated. This is a Shimano hub with cup and cone bearings. There's no
    adjusting the right-hand side cone, because it is inside the freehub body,
    so the left-hand one has to be adjusted. This seems inherently trickier to
    get right than I am used to c&c bearings being, but what really makes it
    agonising is that then the drum brake has to be screwed down on top of it
    without jiggering the adjustment. Furthermore the axle nuts seem to like
    to twist the axle slightly,

    My method of tightening the nuts on solid-axle hubs: tighten both nuts
    finger tight. Then alternate tightening both sides as much as possible
    before the axle starts to twist. This is very little on the first go,
    but in just a few iterations, you can get 'em real tight without any
    axle twist.

    Quoted message said:

    Can anyone recommend tandem rear hubs which are sufficiently robust for
    loaded touring, accomodate the Arai drum brake, come in 140mm spacing and
    48 holes, and ideally use cartridge bearings or failing that are as
    straightforward to adjust as possible? Bonus points if the answer isn't
    shelling $400 for a Phil Wood, although I will if I absolutely have to.

    A friend is trying a White Industries hub (on his tandem) at the moment.
    I think his is only 40 hole, but ISTR it had threads for a drum. He
    believed the design looked strong, and said it was far cheaper than the
    Phil.

    Mark

  4. Quoting M-gineering <[email hidden]>:

    Quoted message said:
    David Damerell said:

    I have been adjusting the rear hub on our tandem and becoming intensely
    frustrated. This is a Shimano hub with cup and cone bearings. There's no
    adjusting the right-hand side cone, because it is inside the freehub body,
    so the left-hand one has to be adjusted. This seems inherently trickier to
    get right than I am used to c&c bearings being, but what really makes it
    agonising is that then the drum brake has to be screwed down on top of it
    without jiggering the adjustment.


    Shimano hubs usually have plenty of spacers. Put a thin locknut directly
    against the adjusting cone, and replace the spacer by a corresponding
    thinner one. Now you can adjust the hub without the brake making things
    difficult

    This is already the arrangement. The problem is, screwing down the drum
    brake seems to derange this adjustment no matter how tightly I have
    screwed cone and locknut together.

    Perhaps I'm missing something.
    --
    David Damerell <[email hidden]> flcl?
    Today is Second Sunday, May - a weekend.

  5. Quoting Mark Janeba <[email hidden]>:

    Quoted message said:
    David Damerell said:

    Can anyone recommend tandem rear hubs [...]


    A friend is trying a White Industries hub (on his tandem) at the moment.
    I think his is only 40 hole, but ISTR it had threads for a drum.

    They do them in a 48 and they are indeed threaded for drum brakes. And
    they're 140mm - our machine, being '89, isn't 145mm - and cartridge
    bearings. Thank you very much; if Sheldon doesn't appear in the next few
    days saying "Oh, you want the Wazco 31A hub", I'll probably try one of
    these; I see some Tandem Club people have used them for long distances
    without trouble.
    --
    David Damerell <[email hidden]> flcl?
    Today is Second Sunday, May - a weekend.

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