Them big black round things

Discussion in 'UK Motorcycles' started by Beav, Apr 2, 2009.

  1. Beav

    Beav Guest

    Have an unbelievable difference between makes.

    I recently put on a pair of Pirelli Super Corsa III's and the bike (Zed
    thou) was "Ok", but not "right" IYKWIM.

    It had a propensity to drop into bends with no provocation (nice) but it
    required a really steady pair of hands on the bars to maintain a smooth run
    through the rest of the bend coz it wanted to keep on dropping (not nice).
    It was impossible to trail brake when cornering and there was absolutely
    *no* chance of getting on the brakes half way through a corner.

    I had the thought that it was either me or the bike was "bent" in the crash
    and had a couple of folk HAGM to see if they felt the same as me but both
    the guys came back with a resounding "I can't feel own wrong". Anyroad, I
    decided to ditch the fucking things and slap on Bridgestone's again (014's
    like the bike originally had).

    I've got my bike back. Yay me. I intended being out for half an hour (get
    the tyres changed and get back home) but I was bimbling about for the whole
    afternoon. **** pissing about with cars on a day like this:)


    --
    Beav

    VN 750
    Zed 1000
    OMF# 19
     
    Beav, Apr 2, 2009
    #1
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  2. Beav

    Cab Guest

    I had both tyres changed on Sat for BT016's. So far, so good, fairly
    decent riding. Surprised to see you had 014's.

    I've always liked Bridgestones and am sure that I won't be
    disappointed. Can't remember what I had before mind.
     
    Cab, Apr 2, 2009
    #2
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  3. Beav

    Beav Guest

    I was tempted with the 016's, but after the disaster that was the
    Sliperelli's, I decided to go for what I knew and what was on the bike when
    I bought it.
    When you've given yours a good doin', let me know how they are would you?



    --
    Beav

    VN 750
    Zed 1000
    OMF# 19
     
    Beav, Apr 2, 2009
    #3
  4. Beav

    JackH Guest

    The current VFR has a fairly recent set of Pirellis Diablo Stradas on it.

    It seems to grip and brake ok compared to the last two, one of which was on
    BT020s and the other which was on Conti Road Attacks.

    However, handling wise it doesn't feel right to me at all - the other two
    VFRs didn't feel like the front end was trying to turn in more than you're
    asking it to like this one does, and this in turn then feels like it needs
    more effort to get things upright again as you put the power on out of bends
    when you've laid it right over etc.

    The other two had a tendency to feel a lot more neutral in this respect and
    it suited my riding style better, so given everything appears to be in the
    right ballpark suspension wise on this one, I shall be looking to put a set
    of Contis or Bridgestones on it when the time comes to replace the tyres.
     
    JackH, Apr 2, 2009
    #4
  5. Beav

    Beav Guest

    Yeah, but I also found the straight line stability wasn't as good as it
    could be. The Zed was more than happy to shake its head with very little
    provocation and that didn't make me smile.
    *Ding*. Exactly the feeling I was getting. Very disconcerting when you're
    used to pretty neutral handling. The Pirelli's just gave me no confidence at
    all. So much so that the bike's hardly been used this winter which isn't the
    usual case.
    I had a set of Conti Sport Attack's on a couple of years ago and they were
    really good *when* they were well warmed up. Absolutely shite when they were
    cold though and they took too long to get warm, so I won't be using Sport
    Attack's again. My brother favours the Road Attacks for his B12 and B6 but I
    don't get on with Bandits and I don't know if the Road Attack's warm up
    quicker than the Sport Attack's (probably), so I can't say how they feel or
    how quickly the get grippy. The Bridgestone's just work well for me, the
    bike and my style of riding.


    --
    Beav

    VN 750
    Zed 1000
    OMF# 19
     
    Beav, Apr 3, 2009
    #5
  6. Beav

    Cab Guest

    Beav wrote:

    NP, will do. :)
     
    Cab, Apr 3, 2009
    #6
  7. Using the patented Mavis Beacon "Hunt&Peck" Technique, Beav
    That's not really going to tell you much about how they perform on a
    full-power bike though, is it?
     
    Wicked Uncle Nigel, Apr 3, 2009
    #7
  8. Beav

    Cab Guest

    Do you really think, that _if_ I had derestricted my bike, that I'd
    announce it on a public forum when people like Des lurk around?
     
    Cab, Apr 3, 2009
    #8
  9. Using the patented Mavis Beacon "Hunt&Peck" Technique, Cab
    Heh. No, I don't suppose you would.
     
    Wicked Uncle Nigel, Apr 3, 2009
    #9
  10. Beav

    Cab Guest

    Oh, you can count that as a bite. I suppose. :)
     
    Cab, Apr 3, 2009
    #10
  11. Using the patented Mavis Beacon "Hunt&Peck" Technique, Cab
    Thanks, you're a gent.
     
    Wicked Uncle Nigel, Apr 3, 2009
    #11
  12. Beav

    Andy Bonwick Guest

    I've ridden with him and there's no way that bike's got a full power
    engine.
     
    Andy Bonwick, Apr 3, 2009
    #12
  13. Beav

    Cab Guest

    I am so _not_ biting.
     
    Cab, Apr 3, 2009
    #13
  14. Beav

    Andy Bonwick Guest

    Really? The common sense approach would have to have claimed you were
    riding slowly so Adie could keep up but obviously there was another
    reason.
     
    Andy Bonwick, Apr 3, 2009
    #14
  15. Beav

    Cab Guest

    Heh, I could claim I was running in new tyres, but I guess that'd be
    too late now, eh?
     
    Cab, Apr 3, 2009
    #15
  16. Beav

    Beav Guest

    Is Cab's a neutred bike? Mind you, it probably isn't a massive gap as the
    Zed only punts out about 120ish bhp. Not that I'm too bothered about maximum
    grip at maximum power or the extremes of the bikes "envelope", as it's the
    handling where my objection to the Pirelli's lie.



    --
    Beav

    VN 750
    Zed 1000
    OMF# 19
     
    Beav, Apr 3, 2009
    #16
  17. Beav

    JackH Guest

    Not found this to be honest... but then the VFRs tend to be quite placid in
    this respect at the best of times, so that probably has a bearing on it.
    Not found that at all tbh... but bloody glad I didn't have a set of these on
    my R6 if this is what they do to a bike, as that was twitchy enough as it
    is, at times.
    Surprising how much difference a set of tyres can make, eh...
     
    JackH, Apr 4, 2009
    #17
  18. Beav

    Beav Guest

    I don't know if R6's are prone to shaking their heads, but Kwaker certainly
    are and although I've had one or two on the Bridgestones, I put that down to
    being a clumsy ****. With the Pirelli's though it was a different ball game
    altogether. It's shake its head for no good reason if I was accelerating
    much more than half heartedly.
    Well it took me by surprise I can tell you. I had to ask a couple of blokes
    to try my bike and usually it's *me* doing the trying of other folk's bikes.
    I've had Avon, Conti, Bridgestone and Pirelli on the Zed and not one of the
    others gave me the feeling that the front of then bike was going to slip out
    from under, but the Pirelli's did it at even VERY modest lean angles.

    I'm fucking glad it's off now.


    --
    Beav

    VN 750
    Zed 1000
    OMF# 19
     
    Beav, Apr 4, 2009
    #18
  19. Beav

    Andy Bonwick Guest

    You need the bike to be just bordering on shaking in a straight line
    so that it'll tip into corners faster. It's just a matter of balancing
    faster turn in against straight line stability and obviously different
    tyre profiles alter this nearly as much as moving the forks in the
    yokes.

    If the Pirelli tyres were sticky but a bit twitchy then you might have
    got a better result by dropping the forks legs down through the yokes
    by about 5mm to slow the steering down again but keep the grip.
     
    Andy Bonwick, Apr 4, 2009
    #19
  20. Beav

    Beav Guest

    That was my problem though Andy. Tipping into corners. With the Pirelli's it
    was too eager and it always seemed like it wanted to lean further than was
    necessary, making it hard work to maintain a smooth line. The 'Stones roll
    smoothly into a turn and they neiher want to sit me back up or have me on my
    ear, they're just "neutral" I suppose you'd call it. Suits my less than
    heroic style much better.
    I believe it was just the profile, but oddly, the profile of the 'Stone's
    looks to be more "aggressive" than the Pirelli's. The Pirelli's have a more
    rounded profile where the 'Stone's are more "triangle" shaped, yet they both
    behave as if they have the opposite profile IYSWIM.
    Ahhh, I never considered that, but it makes sense. Mind you, they'd already
    robbed me of enough confidence and fucking about with the geometery may just
    have fucked me up completetly and I'm trying to make the bike "as was" so
    the missus will feel happy getting back on. And so I can ride it like I want
    to, of course.

    Things have improved out of all proportion to the cost too and now that the
    scrubbing in has been done, I managed half an hour on my own coming back
    from a "ride out" with a pal (who I ditched out of boredom) and thoroughly
    enjoyed myself.


    --
    Beav

    VN 750
    Zed 1000
    OMF# 19
     
    Beav, Apr 5, 2009
    #20
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