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Thread: Found bolt for thickened 350x frame pivot areas update

  1. #1
    Join Date
    Jan 2008
    Location
    nc
    --
    734

    Found bolt for thickened 350x frame pivot areas update

    I beefed up my pivot areas on the 350x frame and wondering what swingarm pivot bolts work/are long enough for the added thickness. I bought a bolt from fastenal, but there are way to many threads on it. Also trying to see if I can get BVCTRIKES to make me one. I sent an email, but probably need to call them.
    Last edited by devilman; 10-20-2019 at 07:14 AM.

  2. #2
    Join Date
    Jan 2010
    Location
    Sulphur Springs,Texas
    --
    1,005
    I think it's the trx450r that works for that.
    • 1985 Honda 250SX
    • 1985 Honda 350X
    • 1985 Honda 350X
    • 1986 Honda 250R



    “I Love The 350x. It’s So Bad”

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  3. #3
    Join Date
    Jun 2003
    Location
    englishtown NJ
    --
    2,676
    measure the diameter of the bolt, not the threaded area, the shank area. I believe that the 350x and 86/87 200x bolt is a slightly smaller diameter.

  4. #4
    Join Date
    Jun 2009
    Location
    Leander TX
    --
    2,219
    I'm able to use a stock bolt with 400EX nut (it's a lock nut). Just enough threads.

  5. #5
    Join Date
    Jul 2005
    Location
    Manheim, PA
    --
    5,742
    I work in a machine shop so if you give me the dimensions and type of material you want we can make them any lenght. PM me if serious

  6. #6
    Join Date
    Jan 2008
    Location
    nc
    --
    734
    Thank you for your time oldskool83. After digging around and requesting measurements from ads on ebay, I am going to try a bolt from an 85 xl250r. I could try the 400ex nut but I am trying to keep as many threads as possible out of the pivot area on the frame. Will update this weekend..hopefully.
    Last edited by devilman; 10-14-2019 at 03:42 PM.

  7. #7
    Join Date
    Jan 2008
    Location
    nc
    --
    734
    Alright, the bolt is from an 86 xl250r. On a stock frame, the entire grip length of the bolt goes completely through the frame pivot holes with about 0.1 inch of grip sticking out. This gets all threads out of the pivot holes! A washer or two would be needed.
    On my frame with added thickness at the frame pivots, I have just over 0.2 inch of grip that goes into the hole and 3 threads are in the hole. Close to what I want, but it will work! It fits through all swingarm pieces as well!

  8. #8
    Join Date
    Jan 2008
    Location
    nc
    --
    734
    Here are some pics. I never got pic of it installed on my frame with gussets. Shorter bolts oem 350x length. Longer is the 86 XL250R. The XL bolt looks larger in diameter but it is the same. TRX450R bolt did not work.

    Click image for larger version. 

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    Last edited by devilman; 01-09-2021 at 04:11 PM.

  9. #9
    Join Date
    Aug 2005
    Location
    CT
    --
    206
    Nice detective work! Thanks for the follow up post too

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