Jet 9 Pivot Bolt Issues- Mtbr.com
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  1. #1
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    Jet 9 Pivot Bolt Issues

    I have a 2015 Jet 9 Carbon that is creaky at the top pivot. I can isolate the creak to the pivot on the seat-tube.

    The red anozidation on the pivot bolt is scratched up which leads me think the bearing is not turning.

    Also that pivot bolt backs out after a 3 mile ride

    I've cleaned the internal and external threads and applied blue Loctite and torque'd to 9mn.

    Any ideas?

  2. #2
    Drinkin' the 29er KoolAid
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    From your description, it does sounds like a bad bearing. To confirm I would unbolt the link completely from the bike and try rotating the inner race of the suspect bearing with your fingers. A bad bearing will either not move or feel crunchy or notchy. Compare it to the bearing for the seat stay if you are not sure.

  3. #3
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    +1 had a similar issue the bearing race was seized to get moving I took the bearing cover off and cleaned it out Wd40 then re greased the bearing popped on the cover and torqued the red alu bolt. I ordered replacements but this kept the bike running and to to be honest there's very little rotation in the bearings during general use. Bearings are easily found on net

  4. #4
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    kwarwick and mark_b thanks for the information. The bearing was kind of crunchy so I ordered some new ones. We took it out for three days of hard riding in North GA and TN with no issues. It was a bad bearing. Cheers!

  5. #5
    Drinkin' the 29er KoolAid
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    Good to hear! I love simple fixes like that. I have a box full of old bearings pulled out of a variety of frames and hubs... this is all just part of the joy of maintaining mountain bikes.

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