The most ignored component on your bike, but it shouldn’t be - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 8 (permalink) Old 03-16-2019, 05:43 PM Thread Starter
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The most ignored component on your bike, but it shouldn’t be

The most ignored component on your bike, but it shouldn’t be because just like any rubber drive shaft coupling in a vehicle, The rubber vibration dampener on your rear wheel will make or break your happiness very quickly and most people don’t even know it’s there. It’s not too big of a deal to grab it and pull it out and inspect it everyone should be doing that at the start of the season
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post #2 of 8 (permalink) Old 03-16-2019, 05:55 PM
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Once every tire change/spline lube should be plenty.

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post #3 of 8 (permalink) Old 03-17-2019, 10:38 AM
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Well I've seen bikes from the 80's with over 100,000 miles on them and those dampeners still looked fine. Have yet to see one that was damaged somehow.
Have you found something wrong with yours?

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post #4 of 8 (permalink) Old 03-17-2019, 02:41 PM Thread Starter
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It’ll depend on your environment. I wouldn’t expect there to be an issue in MO, but in texas, qsome areas of Cali, maybe florida? Super hot dry climate will cause higher Operating temps. Not that you won’t see it everywhere else, just the likelyhood is higher. All factors involved as usual. This one is my spare so i was just peeking in.


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post #5 of 8 (permalink) Old 03-19-2019, 07:12 AM
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Could anyone explain to me how these shock dampers work?
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post #6 of 8 (permalink) Old 03-19-2019, 11:38 AM
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They are just basically a way for the force from the final drive to get transferred to the wheel itself without involving a metal to metal contact...which would wear and require lubrication. I doubt there's any real "dampening" going on here.
It's like wearing shoes, saves wear on your feet
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post #7 of 8 (permalink) Old 03-19-2019, 01:39 PM
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It's needed to take the shock out of accel/decel. Without it, that hub would sloppy in no time, aluminum shavings all over it. Intead of going klacka-klacka all the time, the rubber takes the beating and bounces back.
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post #8 of 8 (permalink) Old 03-19-2019, 07:12 PM
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They use the same system on chain drive bikes also. It's actually a pretty intelligent way to make the Drive unit removable from the hub of the actual wheel. The force from the chain (or shaft) gets spread over a large surface area.
Think of just bolting a sprocket to the center hub on a bike with a bunch of power. That sprocket would then depend on the strength of the bolts holding the sprocket to the wheel. Crack the throttle wide open on a 200 hp bike and those bolts could shear instantly. Giving that sudden force a bit of cushion, and spreading out over a larger area would be a good idea.

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