Tyre Adhesion

Discussion in 'UK Motorcycles' started by Tosspot, Jan 21, 2007.

  1. Tosspot

    Tosspot Guest

    It all started about 6 weeks ago when the roads had a definitly greasy
    feel to them, backed up by The Hobbit. However, a few days rain sorted
    that out, but they still felt greasy. Hmmm...check tyre pressure, a few
    PSI under corrected to book value. No change. A few PSI more and no
    affect. Now, I'd say it was me, but The Hobbit reports doing exactly
    the same think to his Kwak 750 with similar lack of result.

    The ambient is around 8C, both bikes ('Bird and kwak), feel the same but
    didn't until recently. Roads clean and dry.

    What could be causing this?
     
    Tosspot, Jan 21, 2007
    #1
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  2. Tosspot

    Tosspot Guest

    I did consider it, but the Dwarf has lost his as well if thats the case.
     
    Tosspot, Jan 21, 2007
    #2
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  3. Tosspot

    muddy cat Guest

    Runs in the family then. I'd be careful if I were you.
     
    muddy cat, Jan 21, 2007
    #3
  4. Tosspot

    wreckferret Guest

    Hmmm...

    Poor road surface.

    Pollution.

    Tyres not properly warm.

    Worn tyres.

    List goes on...

    IME the roads round here have been fine.
     
    wreckferret, Jan 21, 2007
    #4
  5. Tosspot

    Tosspot Guest

    Don't think so.
    This is what I thought. But how long would you think to warm them up?
    10 minutes? 20 minutes?

    Ok, I'll pop out for a blast in the week and get them properly warm and
    see if it makes any difference.
    That's what's worrying me. The tarmac seems fine.
     
    Tosspot, Jan 21, 2007
    #5
  6. Tosspot

    wreckferret Guest

    Depends on the tyre, doesn't it?

    Those with a construction aimed at road use take longer to heat (and cool)
    than race tyres. The trade off is that they last longer. I've no idea what
    tyres you use, but I'd expect this to be a factor.

    What tyres are you using, out of interest?
    Be more difficult with the colder weather coming...
     
    wreckferret, Jan 21, 2007
    #6
  7. Tosspot

    Monz Guest

    I would have thought the above to be untrue...

    Surely a track biased tyre would take longer to warm up than a road use
    biased tyre due to the level of abuse a track tyre is designed to take
     
    Monz, Jan 22, 2007
    #7
  8. Tosspot

    Gyp Guest

    Are you actually slipping and sliding, or just feeling that it might be
    slipping and sliding if you went any quicker?

    I always seem to suffer from the latter in wet or winter conditions, but
    this is apparently because I ride like a girl, not a limitation of the
    bike or the tyres.
     
    Gyp, Jan 22, 2007
    #8
  9. Tosspot

    Mo Guest

    Where is this Nirvana with good road surfacing? Not London that's for
    sure.
     
    Mo, Jan 22, 2007
    #9
  10. Tosspot

    Monz Guest

    I didn't say a long time, I said longer then a road biased tyre...

    I wonder what the difference would be between something like a BT014 and
    something purely for the track subjected to the same abuse, I was under the
    impression that a track tyre would take longer to get up to the same temp
    because the trade off would be that it had to withstand so much more.

    OK.. I live and learn
     
    Monz, Jan 23, 2007
    #10
  11. Tosspot

    Tosspot Guest

    Dunlop D205s so touring basically.
    Hoh yes, that idea got canned went it was reading -2 this morning. I
    might be at the harder end of motorcycling, but bombing about in -2 just
    for pleasure, sod that.
     
    Tosspot, Jan 23, 2007
    #11
  12. Tosspot

    Tosspot Guest

    Well, its a bit tricky to tell to be honest. It's sort of like that
    feeling when your tyre pressure is a bit down, but it *feels* like the
    bike is 'oozing' out of the bend. It's a very odd sensation, and truth
    be known, if it wasn't what someone else was experiencing as well, I'd
    put it down to gipperness.
    I'm up for a bit of argy bargy, but not your knee down stuff, although
    pegs grind often enough to keep me awake.
     
    Tosspot, Jan 23, 2007
    #12
  13. Tosspot

    Tosspot Guest

    About 30 miles south of Frankfurt, but anywhere outside of Belgium will
    be alright.
     
    Tosspot, Jan 23, 2007
    #13
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