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  • Rear wheel hub cracked?

    While riding lately, it feels like my tail is wagging. Bike doesnt handle well. Feels like something loose in rear suspension. Did find the needle bearing for the relay arm to the swing arm very worn. Didnt measure the play but its enough that I get a clunking noise from it when picking up and down at back of swing arm.
    In addition, I wasnt completely confident the rear wheel bearings weren’t bad. When changing the bearings noticed a large step in the center of the wheel hub. I am assuming this shouldnt be there. Cant tell for sure if hub is cracked there but think it may be. Is this just something from the molding process or whatever process is used to make the wheels or do I need to buy another wheel. This one was purchased used off ebay last year.

  • #2
    I'm not sure what you are looking at but it appears that you are looking inside the hub through one of the bearing holes. There is a 4-in steel spacer inside the hub that slips out of alignment when you remove the axle, giving you the sense that there is a crack. You can call the spacer out with your finger and clean it. They don't forget to put it back in or you will definitely damage something when you torque the axle nut.

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    • #3
      Thanks Shores. But the pic is of the center hub looking thru from the brake side of the wheel with all bearings and everything removed wheel. That step is in the hub itself. Maybe I need a better pic.

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      • #4
        Maybe it is easier to see in this pic. Again looking thru the wheel hub. Everything removed.

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        • #5
          Is that the bearing stop lip?

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          • #6
            It doesn't seem to me that a crack line would be so perfect if it were truly cracked. Seems like it would be more irregular and jagged. Maybe what you are seeing is some sort of mold mark or machining mark.

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            • #7
              Its not the bearing stop lip. Its half way down the hub. It looks like there is a weld around the outside and a this step or whatever on the inside. I am not sure if I should trust it or not. I have another wheel which is bent but the inside of the hub doesnt look this way.

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              • #8
                Looks like galling of metal to me, sorry that's all I got.
                Attached Files

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                • #9
                  Wouldn't the stress be at the bearing pockets and not the inside of the hub ? The inside of the where the spacer sits is not machined, my hub is very rough in that area too not as rough as yours looks though, if it feel like you have a weave going on id be looking at swing arm bearings and neck bearings, a worn shock pivot shouldn't affect lateral play in the swing arm, might get some noise on the short quick bumps where the damping can't keep up, but i doubt it would wander,also a rear tire that is worn to the point where its squared off like a car tire will make rear weave when leaned over hard at very low speed, you'll feel the rear walking under you but really only at parking lot speeds

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                  • #10
                    Thanks all for your input. The rear tire only has a few hundred miles on it. I cant get any play from the swingarm bearings. Changing the wheel bearings, and will check neck bearings. I had the steering apart over the winter and cleaned and regreased the neck bearings. Dont think they are bad but maybe outta adjustment. Does anyone have a pic of the a swingarm with broken welds where the relay arm connects to it? I had one saved on my computer along with all my manuals and other things I thought were important for my Roadstar but my computer will not power up now.

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                    • roadiemort
                      roadiemort commented
                      Editing a comment
                      Yes I do.

                  • #11

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