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Re: riding unglued tubulars

Started by Qui si parla Campagnolo · · Last activity · 5 posts · 602 views

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Cycling Equipment
Published
13 May 2005
Last activity
2 June 2005
Original author
Qui si parla Campagnolo
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5
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  1. Original post
    Qui si parla Campagnolo
    Archived post
    #1
    Quoted message said:

    Hi All:

    I've been riding sew-ups for a while but only yesterday got a flat


    that

    Quoted message said:

    I had to swap out and ride on an unglued tire/tyre for 15 miles.
    Everything went OK, but I took the corners quite carefully. I was
    wondering how careful you need to be under these conditions?


    Presumably

    Quoted message said:

    it's only the corners where you can roll the tyre right?

    When I finally got home I found the other tyre was also getting flat.
    $110 for a training ride! How well does the sealant do on pin size
    holes?

    I was hoping to just ride tubs for training and racing, but at $55 a
    flat, I can't afford that. Does anyone else do this these days and do
    they have a working solution?

    TIA, Pete

    Why not preglue the spare? Putting it on with the residual glue on the
    rim will make it stick pretty well.

    As for flats, it is EASY to repair tubies. Find the hole in H2O, pull
    the base tape back, use a seam ripper to expose the tube, patch it like
    any tube, sew it back up using waxed dental floss...reglue on base tape
    using Fastac. Need a thimble and 3 sided needle as well. Not hard or
    time consuming regardless of some say, those who have never done it.

    Report
  2. Email address hidden
    Archived post
    #2
    Qui si parla Campagnolo said:

    As for flats, it is EASY to repair tubies. Find the hole in H2O, pull
    the base tape back

    Is there anything that can be used to loosen the base tape? I have
    repaired a lot of tubulars of the years, but getting the base tape off
    without mangling it is still a challenge. I have a set of tires where
    the base tape is so tightly bonded that the tape itself literally tears
    before the glue will let go.

    One thing about using FastTack to reglue the base tape: according to
    the tests it is not as strong as Vittoria Mastik. I would expect that
    trying to remove a tire glued on with Mastik that has the base tape
    glued down with FastTack would likely tear off the base tape unless you
    remember to be careful. I read somewhere recently about using face mask
    latex or something. I've tried a number of things but haven't hit on
    anything that worked to stick it back down that well. Is there any
    practical way to replicate the method used during the tire's
    manufacture? In fact, I would say that my problems pulling up and
    re-gluing the base tape are the reasons that I try to avoid repairing
    tubulars. The patching and sewing part is relatively trivial. Maybe
    I'll try Mastik the next time. It can be very difficult to get a tire
    off a rim after using that glue, so if I could come up with a way to
    glue the base tape that tightly I would probably be satisfied.

    Report
  3. Email address hidden
    Archived post
    #3

    Tried last night. Unfortunately, Tufos don't have a seam under the base
    team. At least as far as I could tell.

    Report
  4. A Muzi
    Archived post
    #4
    Quoted message said:

    Tried last night. Unfortunately, Tufos don't have a seam under the base
    team. At least as far as I could tell.

    This may help.:
    http://www.yellowjersey.org/tufo.html

    As we so often say now, that isn't a problem, it's a
    feature! You paid extra for that!
    --
    Andrew Muzi
    www.yellowjersey.org
    Open every day since 1 April, 1971

    Report
  5. Roger Marquis
    Archived post
    #5
    Quoted message said:

    One thing about using FastTack to reglue the base tape: according to
    the tests it is not as strong as Vittoria Mastik.

    You mean Calvin's tests? I wouldn't necessarily take those as
    gospel. There were too many factors left unaccounted for, such as
    the period of time glue was left to dry before mounting the tire.
    It is a very well done piece of research to be sure, but
    insufficiently multifactorial and, as yet, unreplicated.

    Quoted message said:

    trying to remove a tire glued on with Mastik that has the base tape
    glued down with FastTack would likely tear off the base tape unless you
    remember to be careful.

    Tubular tires rarely, if ever, need to be glued that well.

    --
    Roger Marquis
    <http://www.roble.net/marquis/tubular>

    Report

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