Reving in lower gear vs lugging in higher gear?



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Thread: Reving in lower gear vs lugging in higher gear?

  1. #1

    Reving in lower gear vs lugging in higher gear?

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    Somebody posted this in one of the FB groups. Interesting read

    https://www.hotbikeweb.com/revving-i...ource=facebook

  2. #2
    nakkers's Avatar
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    Re: Reving in lower gear vs lugging in higher gear?

    Yes, a common condition from the HD crowd that brag about low end torque and rather have their feet positioned wide and out front instead of moving them to down shift a gear or two.

    They donít like the vibes from revving their big V-twin. Or itís hot out and worried about over heating etc. So, you get folks equipping their bikes with oil coolers and lug their bike.




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  3. #3

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    Re: Reving in lower gear vs lugging in higher gear?

    Decades ago I worked for a diesel engine company. They blamed a lot of main bearing failures on lugging. Lower oil pressure etc.

    Most motors have a sweet spot. A flick of the left toe can put them there.

  4. #4
    Riceburner's Avatar
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    Re: Reving in lower gear vs lugging in higher gear?

    my bike just doesn't feel right lugging....It's sweet spot is 7k RPM.

  5. #5

    Re: Reving in lower gear vs lugging in higher gear?

    Thanks for the post! I wasn't sure about this. No more lugging!
    2016 Suzuki V-Strom 650

  6. #6
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    Re: Reving in lower gear vs lugging in higher gear?

    All true, but there's no need to scream the engine in second gear with next to no load on it at highway speed. I've seen riders do that, too.

  7. #7
    Riceburner's Avatar
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    Re: Reving in lower gear vs lugging in higher gear?

    maybe it just sounds like it...

  8. #8
    Lightcycle's Avatar
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    Re: Reving in lower gear vs lugging in higher gear?

    Quote Originally Posted by Brian P View Post
    All true, but there's no need to scream the engine in second gear with next to no load on it at highway speed.
    By law, all motorcycles must be in first gear when riding through tunnels.

  9. #9
    TwistedKestrel's Avatar
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    Re: Reving in lower gear vs lugging in higher gear?

    I know about detonation in engines and I don't think I lug motors, but I have no idea what it would sound like on a motorcycle. I remember Hot Rod magazine calling it a pinging sound

    Also, is it possible to really do this much on any motor with drive-by-wire or secondary throttles?
    2006 Honda CB919
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    Re: Reving in lower gear vs lugging in higher gear?

    Few bike engines have knock sensors. Detonation at low revs sounds same as a car (pinging) but if the bike has a loud exhaust, it may be drowned out.

    I've heard it momentarily on my zx10r with stuff done to the engine if I bog a start. Never did it stock. If I were using that engine in anger it would be getting race fuel.

  11. #11
    Riceburner's Avatar
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    Re: Reving in lower gear vs lugging in higher gear?

    Quote Originally Posted by Lightcycle View Post
    By law, all motorcycles must be in first gear when riding through tunnels.
    and hit the kill switch and restart....

  12. #12

    Re: Reving in lower gear vs lugging in higher gear?

    Great, now all we need is more supersport riders revving at 8k + with barely any load on the engine at highway speeds in 3rd gear... I cringe every time.

    The article is a good read though, in fairness the main take away is not to rev the crap out of it as I'm suggesting above, but to make sure you're in the right RPM at the right time... eg. downshift if needed when passing or going up a hill if the engine were to bog at lower RPMs. My K4 GSXR1000 is about to hit 100,000km and the bike cruises around 3-4k RPM most of the time since the torque allows for it and feels natural (not so much on a 600cc). I've owned the bike since new and have done all oil changes with conventional car oil (sans friction modifiers) and Fram (yes, Fram) filters - which should hopefully debunk some misconceptions on what our bikes really need for longevity.
    Last edited by Krime; 08-08-2018 at 11:17 PM.

  13. #13
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    Re: Reving in lower gear vs lugging in higher gear?

    Why is it so hard for folks to figure out what an engine needs??? You get 5/6 speed transmissions so your engine is revving at the right spot for the riding your doing at the time. Not because its fun to shift.

    We got big v twins in American bikes by default, gas quality was crap so compression was 5:1, 6;1 and you had no torque unless you had displacement, the US postal service in the 40's passed a rule all mail delivery bikes must be a minimum of 60ci , about 1000cc. HD built engines around volume sales to police service and postal, military. Times change.

    Lugging any engine is never a good idea, it just stresses components that don't need the extra wear.

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