Has anyone worked through this?
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  1. #1
    RoadBikeReview Member
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    Has anyone worked through this?

    Hyperon Ultra II wheels. When freewheeling I get a rhythmic thud in the back. It started after putting on a new tire so I removed the tire and wrapped some electrical tape around the valve stem. While I had the wheel off I took apart the free hub and hub cleaned and inspected. Everything appeared to be in good order. Put it all back together and it's still there. Was quiet but quickly came back. Today I could hear it with the bike in the air and spinning the rear tire.
    Has anyone been through this?

  2. #2
    RoadBikeReview Member
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    Still have your old tire? If so, swap it and check again. If it started after a tire change, don't rule out the tire.

    Sent from my moto x4 using Tapatalk

  3. #3
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    With the bike off the ground I can spin the tire and hear and feel the thud.

  4. #4
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    Resolved. It turns out a couple of the spokes on the drive side worked their way out some. That coupled with the 11sp cassette the biggest sprocket is dished some I suppose to make room for the 11sp, any way those two conditions allowed the sproket to make contact with spoke (nipple?) causing the knocking sound. I took a small punch and tapped on the spoke nipple for lack of a better word and seated it. Noise gone.

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