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Thread: full Wing vs F6B ... 8 new reflections

  1. #21
    Senior Member Travelor's Avatar
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    Quote Originally Posted by 2wheelsforme View Post
    Relationship between RPM and speed does not change with load, weight or headwind. They are mechanically linked.
    Agree 99.9999%. BUT - there is one other factor at work here that can cause a very small change in the engine RPM based on the load (but most likely not noticeable on an analog tachometer). And that is tire slippage. There is always an incredibly small amount of slippage between the tire and the road - that's why it wears. If you stand on the brakes, the tire slides and the wear increases. If there were no slippage, there would be no wear. More load (weight, increased throttle, headwinds) all equate to more work and thus more energy used in the form of tire slippage assuming a constant of tire to road friction.

    Bring on the flames!

  2. #22
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    Call it what you want, If you have a manual clutch, there is no rpm difference at the same speed. Up hill or down. Unless the clutch is slipping.
    Maybe a hundred with a DCT automatic.
    ITS ALL GOOD

  3. #23
    Senior Member terryboyle's Avatar
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    Not a mechanic, maybe the difference in rpm is due to a difference in speedo error, unless you are measuring with a GPS.
    Slim chance it is tire diameter difference if you are running different make of tires and they have a different profile.
    2014 Red F6B with ABS
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  4. #24
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    Relationship between RPM and speed does not change with load, weight or headwind. They are mechanically linked.

    Spot on. Your RPM does not change at any given speed with a pillion on the back.

  5. #25
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    I agree with the speedo thing. They can be a few R,s off from bike to bike.
    ITS ALL GOOD

  6. #26
    Moderator BIGLRY's Avatar
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    Quote Originally Posted by 2wheelsforme View Post
    Relationship between RPM and speed does not change with load, weight or headwind. They are mechanically linked.
    +100%

    The guy who invented the first wheel was an idiot -
    the guy who invented the second one... he was the genius!


    http://theringfinders.com/blog/Larry.Royal/

  7. #27

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