Comparo - 1990 ZX10 vs 1990 ZXR750

Discussion in 'Australian Motorcycles' started by James Mayfield, Sep 21, 2004.

  1. Time for a quick comparo. My old toy, vs my new toy.

    I really need to decide which one to keep (or if I can justify keeping the
    pair of them).

    So, I took the ZXR for a blatt through the park on Sunday. Unfortunately,
    the rain spoiled my fun, but here are some quick thoughts (a lot of which
    are a bit obvious anyway).

    The ZX10 is a lot torquier. It pulls a lot harder low down. Up high though,
    the power difference isn't very pronounced, and with the lower weight, the
    ZXR is probably just as quick in a straight line, if a bit more work.

    To get the most enjoyment out of the ZX10 you need to sit above about 5500
    rpm, on the ZXR you need to sit about about 8000 rpm.

    The ZXR is MUCH quicker around corners. Corners that I do at about 70 on the
    ZX10 can be done at around 100 on the ZXR. The ZXR is a lot more flighty
    once the surface becomes a bit rough though. Through some of the rough
    corners in the park the ZX10 is significantly quicker simply due to the fact
    that it ignores the bumps, while the ZXR really lets you know they are

    The ZXR pounds your bum a lot. After 1.5 hours in the saddle I had a sore
    bum. As a comparo, I rode home from Goulburn on the ZX10 the other day via
    as many backroads as I could pack in. (All up about 4 hours.) After that, I
    was't sore at all. That having been said, the ZX10 does have a sheepskin, so
    I'd be interested to see how much difference a sheepskin would make to the

    I don't like Bridgestone tires anymore. I think I'm going to switch to
    Pirrelli. The ZXR is currently fitted with BT012s, and they have a similar
    turn in as the BT020s I used to have on the ZX10. Adjusting the suspension
    tuned some of it out, but I think tyres with a different profile will make a
    big difference.

    The ZX10 is slower, but feels faster. Every corner I took on the ZXR felt
    like I was going pretty slowly. Then I'd look down at the speedo and go "oh
    shit - I hope there's not a cop around the bend!". To feel as fast as the
    ZX10 feels, the ZXR had to actually go a good 50% faster. This is both a
    good thing and a bad thing. (Good in that it means that you can go a lot
    harder - would be tops at the track, but bad in that to feel fast on the
    road you need to really risk losing your license.)

    The brakes on the ZXR are VERY good for their day, the ZX10 brakes, however,
    a not so good. The ZXR stops sooooooooo much harder than the ZX10. I was
    braking at the same point, and being at the speed I wanted to be at in
    around 2/3 of the distance the ZX10 took. The sports compound tires probably
    help a bit with that, too though. As I didn't manage to lock up the front on
    the ZXR, but on the ZX10 I could easily get the front end to the limit of
    its grip (to the point where it would chatter along, as the tire and the
    brakes fought for supremacy).

    Now I want to take them both to the track to do a comparo out there.

    As for what to do with the bikes, I have a few options.

    Keep just the ZX10, sell the ZXR and the Z1R.
    Keep the ZX10 for touring and commuting, and convert the ZXR to a track
    bike. Sell the Z1R.
    Keep the Z1R for touring only. Use the ZXR for commuting and track days.
    Sell the ZX10.
    Or, the best, but least financially sensible option. KEEP THEM ALL!!!
    James Mayfield, Sep 21, 2004
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  2. BTW, Anyone want to lend me a 2004 ZX10R so I can do a ZX10 comparo? <grin>
    James Mayfield, Sep 21, 2004
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  3. James Mayfield

    Matt Palmer Guest

    Big Bird is of the opinion:
    Jeez, why not just tell him to cut his balls off and be done with it?

    Anyway, if he did that, he wouldn't be "Guildford Kawasaki" any more.

    - Matt
    Matt Palmer, Sep 21, 2004
  4. James Mayfield

    Big Bird Guest

    Sell them all and buy a Honda.
    Big Bird, Sep 21, 2004
  5. Sell them all and buy a Honda.

    No thanks, I had enough regulator/rectifier problems with the Porsche to
    last me a lifetime.
    James Mayfield, Sep 21, 2004
  6. James Mayfield

    Jules Guest

    Awesome. A comparo of 15 year old bikes. You should write for TW ;-)

    Get rid of them all and you'd be amazed at the kind of newer bike you
    could own for all you'd save on maintenance (assuming your time _is_ of
    value to you)

    Jules, Sep 21, 2004
  7. James Mayfield

    FuTAnT Guest

    Good point, you could sell em both and get a good condition '98 onwards ZX6R
    which wouldn't quite have the low down torque but still goes impressively

    FuTAnT, Sep 21, 2004
  8. James Mayfield

    FuTAnT Guest

    You've got to be kidding right? I switched to Honda once, I don't think I'll
    ever do it again. They make a nice bike yeh, but they have nothing on the
    Kwaka for fun.

    FuTAnT, Sep 21, 2004
  9. Awesome. A comparo of 15 year old bikes. You should write for TW ;-)
    In all seriousness, articles about used bikes was something I used
    to enjoy in Tee Dub. They've only just started to put them back in, and they
    aren't anywhere near as good as they used to be. Thing with it is, I (and a
    lot of other people) don't have the money to always buy the latest and
    Old bikes are easy to work on, though. Newer bikes, even one that
    wasn't under warranty, is still going to take the same sort of maintenance.
    The ZX10 is my pick for ease of maintenance. All you need to do the valve
    clearances is a set of feeler gauges and a 10mm spanker. No removing
    camshafts, no fart-arse-ing around with screw and locknut jobbies, proper
    shims, but the rockers slide out of the way!!!
    Carbs, too, while in need of occasional maintenance, can be
    maintained at home. Fuel injection is a little too high-tech for me to fix
    in the garage.
    Parts aren't going to be any cheaper for a new bike, either.
    So, if I sold everything up:
    ZX10 ($3K?)
    ZXR750 ($4.5K?)
    Z1R-II ($3K?) (At least this one isn't depreciating anymore.)
    I'd have just over 10K.

    Suggestions to what I should buy with that 10K? Needs to be easy to work
    on, tour in comfort, go lots of fast, be fun at the track, handle two-up
    without a problem. No fuel injection, ideally no "remove the cams to adjust
    the valve clearances" or at least if it is that, then it's easy to do
    without needing to bend the laws of physics. Oil filter needs to be able to
    be removed without needing to be a contortionist. Ideally it should have a
    badge on it that says Kawasaki, but I'll settle for not having that.
    This isn't me saying "well poo to you, my current situation is better
    than what you can offer". It's a legitimate question. (Incidentally, I
    already know the answer. ZX9R. It answers most of the questions, just not
    the valve clearance one (and I don't know about the oil-filter one) but who
    ever said motorcycles were for being logical. Also, realisitcally, I will
    end up selling one of the bikes anyway, so it would really leave me with
    more like $6-7K to spend if I sold the other 2.)
    James Mayfield, Sep 21, 2004
  10. Don't want a 600. Need to be able to do 2-up for some big kays without any
    hassles. ZX9R would be a possibility.
    James Mayfield, Sep 21, 2004
  11. James Mayfield

    sharkey Guest

    I misread that "BTW" as "BTH", and imagined:

    2004 Kawasaki ZX10R vs. 19?? Honda CT90

    With criteria such as:

    * Commuting: Fuel Efficiency
    * Sports: Horsepower (per dollar)
    * Touring: Ease of esky attachment
    * Track days: Number which can be fit into a flatbed Econovan

    sharkey, Sep 21, 2004
  12. You forgot...

    * Maintenance: Number of interchangable parts with a GPX250.
    James Mayfield, Sep 21, 2004
  13. James Mayfield

    FuTAnT Guest

    And there yee have it then. You've answered you're own question. Oil change
    is simple enough, oil filter is easy to get too. You usually just take off
    the LHS lower fairing (piece of piss) and you're away.

    As far as the valve clearances go, yes, they are more exxy to service but
    also more consistent. If you take it to a good bike shop they won't rip you
    off. Make sure you don't take it to a dealer etc. Yup, they still have
    carbs, so no worries there.

    It'l be comfortable, more power than the ZX10 you have, good for two up, can
    be turned into a track weapon with a bit of tweaking and yet is still
    extremely rideable. You'd love it, take one for a test ride at a dealer
    somewhere (2nd hand bikes, or last of last years model etc) and see what you
    think. I'm sure you won't be dissapointed.

    FuTAnT, Sep 21, 2004
  14. James Mayfield

    sharkey Guest

    Yeah, all this new shit. Don't approve of it myself.

    sharkey, Sep 21, 2004
  15. Which edition of MC Trader?
    James Mayfield, Sep 21, 2004
  16. James Mayfield

    rockit Guest

    Interesting, most of what you have said would be expected under the
    circumstances.... thus it puzzles me why the BOTY recently commented on,
    would be a 750 rather than the 1000; esp so considering that the the latter
    differs from the former mainly in engine capacity.
    I agree with Jules comments on the new v\s the older (and I'm getting old
    There was recently a comparo on the ZX9 models published in M.C. Trader.
    The suggestion being the later the model the better... the "C" being the one
    go for. Can get a copy of it to you if you want.
    rockit, Sep 21, 2004
  17. James Mayfield

    Jules Guest

    If you don't want to do valve clearances get a Yamaha.

    Service interval is 43000km on most of their 2/4cyl models.

    How many km do you rack in in a year?

    Jules, Sep 21, 2004
  18. It varies, year to year. In the last 6 months I haven't done that many kays.
    (Been wedding planning on the weekend instead. <*sigh*>).

    But normally a good 25-30,000.

    But yeah, a 43000km service interval sounds good!!!
    James Mayfield, Sep 21, 2004
  19. Yamaha makes bikes with half a cylinder?

    Pat Heslewood, Sep 21, 2004
  20. James Mayfield

    Fwoar Guest

    Hi James

    Like you said -
    ZX9 B1-B4 would do the business that you would need - the C-Models would be
    a bit sporty for the pillion
    Rocker valve clearances, spin on oil filter etc etc.
    Raced with one of these motors in a ZXR750RR (M) for a couple of years. -
    Basically a ZXR750 Motor J-M

    Don't discount the Yamaha FZR/YZF1000 ( the thunderace version )
    Valves at 45'000 (buckets), spin on oil filter, 5 speed gearbox.
    I had 2 of these - brilliant at both touring & on the track.
    Fwoar, Sep 21, 2004
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