Author [NL] [FR] [ES] [DE] [SE] [IT] Gear whine. Loud.  (Read 1618 times)

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  • Offline Blue42   us

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    Gear whine. Loud.
    on: Nov 07, 2022, 04.54 am
    Nov 07, 2022, 04.54 am
    Now that I've had the bike for a couple weeks I've taken it through enough speeds to know it better, and, man, it has some gear whine.  It's loud enough by itself to require earplugs.
    Is the Trophy known for having it?

     It's worst between 50 and 65 mph I think.  In any gear. 

  • Offline digital   es

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    Re: Gear whine. Loud.
    Reply #1 on: Nov 07, 2022, 07.18 pm
    Nov 07, 2022, 07.18 pm
    The truth is that I don't know exactly what kind of noise you are referring to on the gears. The noises that a Trophy makes are normal and not loud, unless that Trophy has some other problem. Another very normal noise is that of a three-cylinder motorcycle.

    In the gear changes, it is also normal and does not hit hard like a DUCATI motorcycle.

    There are some failures that are true that make noise, for example, alternator and valve head. So if you don't give more details, I don't know what you are referring to.
    Only motorcyclists know why dogs stick their head out the car window.


  • Offline Blue42   us

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    Re: Gear whine. Loud.
    Reply #2 on: Nov 07, 2022, 09.33 pm
    Nov 07, 2022, 09.33 pm
    I thought most people would know the sound. If you have never heard whine from gears in an automobile (or any machine with a metal shaft connected to gears) it's a medium pitched drone.  Lower frequency than a kettle boiling, but about the same type of noise.  Like a higher pitched hum or a lower pitched whistle. 

    I know it's the gears--to maybe 98% certainty.  I've rebuilt two rear ends in two cars--one of which I did solely in an effort to fix the noise--and I know the sound all too well.  What I'm wondering is if it's normal in the Trophy.  Or to phrase it differently, does anyone else have a pretty loud gear whine from theirs?  And, any details or information would be appreciated. 

    Post number 6 here addresses a very likely sounding explanation.  https://www.triumph-trophy.com/index.php?topic=6068.0
    Although the OP of that thread had a different characteristic than I do.  His sound oscillated.  Mine is constant when I get to higher speeds in 6th. 

    The car I had before that had the same noise had a very beefy rear end, to handle up to about 800ft lbs of torque.  I suspect Triumph may have determined that they were NOT going to have gears dying in the Trophy, and made them very solid.  And maybe the cut they used trades off some quietness for strength. 
    Last Edit: Nov 07, 2022, 09.35 pm by Blue42

  • Offline digital   es

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    Re: Gear whine. Loud.
    Reply #3 on: Nov 07, 2022, 10.14 pm
    Nov 07, 2022, 10.14 pm
    From what I have read in the link that you have provided... It seems that you are referring to the front conical box, which is the one that is usually noisier, since inside it has two very large gears and logically due to the amount of oil that moves for its interior, obviously it muffles the noise a lot. But I think it's not that bad or that annoying. Gear or engine noises are no longer noticeable with a good helmet on your head. There are motorcycle helmets that barely attenuate the noise coming from the engine or any gear.

    I can record a video with the engine empty and without load that I have on my work table, I have to give you the reason that when any of the gears from first to sixth and makes a noise that seems to be something rubbing, if you press the clutch that noise disappears completely. But I repeat, with the engine empty and without load.
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  • Offline Blue42   us

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    Re: Gear whine. Loud.
    Reply #4 on: Nov 07, 2022, 10.48 pm
    Nov 07, 2022, 10.48 pm
    I appreciate the offer of the recording. 
    I have a decibel meter that I will strap to the tank, and get a max reading both with the clutch plate engaged, and disengaged.  I.e. with the clutch lever squeezed.  With the clutch disengaged the sound is 100% gone.   

    I have never rebuilt or even taken apart a motorcycle transmission: not a clutch, gear, bearing, or final drive assembly.  Never even studied the design.   So I'm ignorant of much.  But I do know gear whine, and have also had too much experience chasing noises. 
    I once bought a Chassis Ear thing, that had mics that you hooked to different parts of a car and put on headphones to try to chase down a rattle or a squeak.  And one sound may appear to be coming from one place to one person, but the next guy who rides in the car thinks it's coming from somewhere else.  I once chased a loose spare tire that was squeaking in the trunk for months.     

    I still need to check the fluid levels.  The bike was just serviced for the 25k mile service by the shop I bought it from, but I haven't verified that there's gear oil where there should be in the amount it should be there. 

  • Offline digital   es

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    Re: Gear whine. Loud.
    Reply #5 on: Nov 08, 2022, 06.42 pm
    Nov 08, 2022, 06.42 pm
    Indeed, the origin of sounds is sometimes difficult to know where they come from. They produce confusion of their origin.

    Sometimes I use to know the origin of sounds, I use a Stethoscope like the one in the following photo:

    Only motorcyclists know why dogs stick their head out the car window.


  • Offline Blue42   us

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    Re: Gear whine. Loud.
    Reply #6 on: Nov 09, 2022, 02.33 am
    Nov 09, 2022, 02.33 am
    I rode it 80 miles today and it's not excessively loud.  It's a lot louder than my BMW K1600GT but it's within what it should be.  I think last time I might have just run through the gears with a lot of throttle and warmed them up.  And I was just getting off the BMW, and the comparison made the sound stand out. 

    I also tried using the decibel meter but didn't get a great comparison.  I'll have to try it again when I'm on a wider open road.  I got about 73 dB average holding it over the tank. 

  • Offline wjenkins229   ca

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    Offline wjenkins229

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    Re: Gear whine. Loud.
    Reply #7 on: Nov 25, 2022, 06.46 pm
    Nov 25, 2022, 06.46 pm
    I can't tell you if your gear whine is abnormally loud, but I do believe this bike has some noise.  NOW DON"T SHOOT ME!  I come from a history of low revving, street and cruiser bikes before I bought this Triumph. Which is a joy to travel on! But the power band just starts at RPM's my old bikes were already cruising at a 110 km/h.  And I had to get ear plugs, even after buying a new helmet for the highish frequency noise.  I love riding my bike and once I purchased my "EarPeace" ear plugs riding the bike became a pure joy to the ears. The high frequency disappeared and it sounded "normal".  I don't use them for short trips, but anything more that commuting and I find them necessary.   So I hope there is nothing wrong with your bike to cause that noise and only an adjustment to the equipment you use will help you do long enjoyable hours on your bike.
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