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  1. #1

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    GP1200R Pro-X ring end gap?

    I have searched the web and the forum and cannot find the piston ring end gap specs. for a GP1200R Pro-X piston kit. The rings are made by Teikoko Piston Ring Co.

    What I have found-
    OEM .018 to .024
    WSM .008 to .016
    SBT .008 to .016
    Wiseco .004 times piston dia.

    Any ideas? Thanks in advance.


  2. #2
    Moderator OsideBill's Avatar
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    Use the OEM specs, The original OEM pistons were made by the same people that made the Pro-X

  3. #3

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    My cylinders are used OEM Nics stamped size 10. All six rings measure .016 end gap on all cylinders. Should I let it go, file rings to
    .018, or exchange rings. Thanks

  4. #4
    Moderator OsideBill's Avatar
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    file them to minimum

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