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    Mountainbike Tire Wobble


    Hey guys,
    I recently changed and cleaned the fluid out of my front tire tubeless setup. It’s a grid 29 inch specialized tire.
    I cleaned it the best I could, remounted it, added the fluid and inflated it with a compressor. The tire/ bead popped into place and seems to be aligned with the rim quite well.

    However when I first rode it I realized the tire had a severe wobble now. Before the change the tire ran perfectly straight. The rim is also perfectly calibrated and centered.

    I don’t know what to do … there’s a video attached showing the wobble. As you can see the wobble is VERY significant and I just wouldn’t know what caused it… help?

    Edit: I made a new post explaining it better, all in all — the bead sits perfectly, but the tire wobbles anyway.

    Mountainbike Tire Wobble
    byu/FantasticWrongdoer65 inMTB



    by FantasticWrongdoer65

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    20 Comments

    1. MaybeDBCooper on

      Probably just not mounted all the way. I had this happen once and a quick remount fixed it

    2. Pretty_Detective868 on

      Check that tire is centered and properly tightened in fork
      Reseat the tire.
      Check the bearing

    4. andrerav on

      As others have said, just reseat it. Add some soapy water to help the tire seat itself easier.

    5. kjostolf on

      I would suggest looking at the bead one more time. Usually there is a small line on the tire that sits just above the rim. Check if you find any place where it dips into the tire. Usually just adding some more air to get the tire to pop into place does the trick for me.

    6. rubysundance on

      Set the tire to whatever pressure you normally run and go for a trail ride. If the tire isn’t already properly seated, it will pop right into place.

    8. AhraSureGoOnThen on

      After spending AGES replacing an old (what felt like welded on tyre) I went out for a test spin and had a similar wobble. Parked the bike for a week until I have the patience to go at it again. Took a lot of inflating and deflating but it eventually got on its bead. I think some soapy water to lube it up helped.

    9. tooaasty on

      Try pumping it up to the max pressure printed on the tire, this will sometimes help it pop up on the rim properly

    11. washedTow3l on

      There is a small chance you have a tire with bad casing, but I would try remounting it.

      Check the edges of the rim for any debris and then use soapy water on the bead to help it seat properly.

    13. GingerBeast81 on

      Max out the air pressure to try and seat the bead fully, and or reinstall with soapy water to help seat the bead.

    15. RockHopper91 on

      Once you have remounted, make sure you give a very nice high pressure to it. It will settle

    16. delectable_boardroom on

      The casing looks twisted from the bead not seating evenly. Deflate, lube the bead with soapy water, and overinflate to 40-50 psi until it pops all the way around.

    18. YouDontNeedYourSlip on

      Deflate, soap up between the rim and bead really well, work the tire around and randomly squeeze/manipulate it. Inflate and bounce the tire.

      Should take care of everything.

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