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Rear shock, is this normal?

B

Bojan Gjoshevski

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May 14, 2016
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Hey guys,
I was trying to adjust the sag on my 2020 c650gt and noticed extensive play on the top bolt of the shock. The bolt moves up and down the rubber bushing.
Please see the video and let me know if this is normal.
Thanks,
Ben

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I just tried to manipulate my rear shock, without taking off the protective cover that it looks like you had to in order to get to the top bolt/mounting point. But I tried firmly tugging at the shock, trying to get any movement at all in the unit, with 0 result. Bike on the center stand so no load on the shock. Meaning it seems as tight as can be on my C650. It does look from the video that your top bushing is worn.
 
Ceesie76 said:
I just tried to manipulate my rear shock, without taking off the protective cover that it looks like you had to in order to get to the top bolt/mounting point. But I tried firmly tugging at the shock, trying to get any movement at all in the unit, with 0 result. Bike on the center stand so no load on the shock. Meaning it seems as tight as can be on my C650. It does look from the video that your top bushing is worn.
Click to expand...
Thanks @Ceesie76, that helps a lot. Yes I’m moving it with the tool for sag adjustment. That’s how I found out. I hope that’s the problem so I can finally solve the low speed wobble and crabbing ( lines on both tires on opposite sides)
Ben
 
Hmmm, now that we know it's a spherical bearing, I would say that, so long as there is 0 up and down movement, meaning that, vertically, there is no play, and also laterally the only movement is a rotational one and not a 'side-to-side' movement, then you're probably fine.
 
Ceesie76 said:
Hmmm, now that we know it's a spherical bearing, I would say that, so long as there is 0 up and down movement, meaning that, vertically, there is no play, and also laterally the only movement is a rotational one and not a 'side-to-side' movement, then you're probably fine.
Click to expand...
It still could be excessive movement but I don’t think that’s my problem now. I don’t know, maybe replacing swing arm pivot bearings is next:(
 
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