Cycling Equipment · Public discussion

Question re: HED/Specialized tri-spokes

Started by enforme · · Last activity · 3 posts · 884 views

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Cycling Equipment
Published
22 June 2005
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23 June 2005
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enforme
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  1. As I understand it, Specialized (and later, HED) made a tri-spoke
    carbon wheel with freewheel threading. It could be adapted for front
    (100mm) or rear use (road or track (120mm) spacing) by switching to the
    appropriate axle and spacer combo.

    Question is: did either Specialized or HED ever make a threaded-hub
    wheel that could be used ONLY for road rear use? That is, was there
    ever a model with threaded hub that did NOT allow the user to alter
    axle and spacers to fit as a front wheel or for rear track use?

    Thanks much for the wisdom... ccc

  2. enforme said:


    Question is: did either Specialized or HED ever make a threaded-hub
    wheel that could be used ONLY for road rear use? That is, was there
    ever a model with threaded hub that did NOT allow the user to alter
    axle and spacers to fit as a front wheel or for rear track use?

    Thanks much for the wisdom... ccc

    I don't think so- and I don't see how you could make a wheel like the
    Specialized/HED with a threaded hub that *couldn't* be adapted to the
    front with a simple axle and spacer swap. The *only* possibility would
    be to create a "hub" that extended to the dropout on the left far
    enough that centering the rim in front dropouts would be impossible.
    IMO, Specialized/HED would be pretty stupid to do this.

    However, I'm guessing. Stranger things have happened in the bicycle
    business.

    Jeff

  3. enforme said:

    As I understand it, Specialized (and later, HED) made a tri-spoke
    carbon wheel with freewheel threading. It could be adapted for front
    (100mm) or rear use (road or track (120mm) spacing) by switching to the
    appropriate axle and spacer combo.

    Question is: did either Specialized or HED ever make a threaded-hub
    wheel that could be used ONLY for road rear use? That is, was there
    ever a model with threaded hub that did NOT allow the user to alter
    axle and spacers to fit as a front wheel or for rear track use?

    Thanks much for the wisdom... ccc

    Who knows what *might* have been made! ;-)

    However, all the freewheel DuPont trispokes (or Specialized or Hed
    trispokes) I've seen can be made into fronts by changing the spacing.

    Little known factiod #1: Even if you don't have the M9x1 "front" axle
    set you can still make a freewheel rear into a front. Using the
    existing M10x1 axle set, get the spacing to 100mm and the axle length
    to about 108mm, then grind down the OD of the axle to 9mm over the 4mm
    length on each side that fits into the fork. The M10x1 threads are
    neatly consumed in this step so the smooth 9mm diameter fits right into
    the fork ends.

    Little known factoid #2: Some loose-ball front hubs use an M10x1 axle
    with the last 4mm or so on each side ground down to 9mm OD... I've used
    an axle from a Bontrager Select hub that's like this. There are
    probably others as well.

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