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Continental Sport Contact

Started by BigRab · · Last activity · 7 posts · 444 views

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Original section
UK and Europe
Published
29 November 2006
Last activity
30 November 2006
Original author
BigRab
Posts
7
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Public discussion
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444
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  1. I love my Conti sport contacts and I had hoped that they might have
    rectified the way that Contis always seem to let go (at least for me!)
    just where they meet the rim but no!

    That old familiar 'wobble' manifested itself again on a relatively
    unworn tyre. No it wasn't poor brake adjustment, I have discs.

    Now I'm going to have to start again with the looking and searching.

    Anybody want to recommend a MTB slick which is light(ish) supple and
    won't bleedin' explode outta the rim after a few months [soapbox mode
    off].

    Cheers folks,
    Robert

  2. In article <[email hidden]>

    BigRab said:

    I love my Conti sport contacts and I had hoped that they might have
    rectified the way that Contis always seem to let go (at least for me!)
    just where they meet the rim but no!


    Tyre too wide for rim, or pressure too low for load?

  3. Rob Morley said:

    In article <[email hidden]>

    BigRab said:

    I love my Conti sport contacts and I had hoped that they might have
    rectified the way that Contis always seem to let go (at least for me!)
    just where they meet the rim but no!


    Tyre too wide for rim, or pressure too low for load?

    Nope, the casing is starting to disintigrate. I am very careful not to
    rub the sidewalls up against kerbs or anything.

    R

  4. In article <[email hidden]>

    BigRab said:


    Rob Morley said:

    In article <[email hidden]>

    BigRab said:

    I love my Conti sport contacts and I had hoped that they might have
    rectified the way that Contis always seem to let go (at least for me!)
    just where they meet the rim but no!


    Tyre too wide for rim, or pressure too low for load?

    Nope, the casing is starting to disintigrate. I am very careful not to
    rub the sidewalls up against kerbs or anything.


    It's not scraping against the landscape that causes the problem, but
    constant flexing of the sidewall - this is a known problem with some
    tyres, particularly with tandems where the greater load causes more
    movement of the sidewall. A narrower tyre, wider rim or higher pressure
    reduces the tendency of the tyre to fret against the rim. Some tyres
    have a reinforcing tape around the bead outside the casing in an attempt
    to avoid this, but that can simply move the problem from the edge of the
    rim to the edge of the tape. Presumably you've already checked for
    rough or sharp edges on the rim.

  5. Rob Morley said:

    It's not scraping against the landscape that causes the problem, but
    constant flexing of the sidewall - this is a known problem with some
    tyres,

    Yeah, I see what you're saying. I have had a couple of punctures with
    that particular tyre and maybe I rode longer than I should as it went
    down. You always hope that you can make it home with just a few blasts
    from your pump eh?

    I have another Conti on order from Wiggle. One of the Gator skin ones
    which looks a we bit more robustlt made in that area.

    Thanks for your input Rob.

    Robert

  6. BigRab said:


    Rob Morley said:

    It's not scraping against the landscape that causes the problem, but
    constant flexing of the sidewall - this is a known problem with some
    tyres,

    Yeah, I see what you're saying. I have had a couple of punctures with
    that particular tyre and maybe I rode longer than I should as it went
    down. You always hope that you can make it home with just a few blasts
    from your pump eh?

    I have another Conti on order from Wiggle. One of the Gator skin ones
    which looks a we bit more robustlt made in that area.

    I use gatorskins on my tourer and the sidewalls consistently disintegrate
    before the casing over the contact patch gets too thin, in contrast to some
    Kenda tyres where the casing becomes detached from the tyre body for extra
    Amusement when cornering hard. However, by the time the Gatorskins crack
    their sidewalls the casing is quite thin enough to noticeably reduce the
    level of puncture protection offered. True to form the Last time I noticed
    this I was miles from anywhere and had just ridden through a smeechy bog.

    Regards,

    -david

  7. BigRab said:

    Anybody want to recommend a MTB slick which is light(ish) supple and
    won't bleedin' explode outta the rim after a few months [soapbox mode
    off].

    Cheers folks,
    Robert


    Schwalbe Marathon Racer (http://www.dotbike.com/ProductsP2159.aspx)?
    Not tried in 559, but seem OK in 406 (maybe not as tough as marathon
    Slicks?)

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