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  1. #1
    CB750 New Member Funkateer's Avatar
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    Trying to re-attach front brake calipers on 1982 CB750C

    Hey all,

    Pretty new around here, (first post), but I've been enjoying reading the forums.

    I've got a 1982 CB750C (Custom) with the dual front calipers... when I got it the calipers were in a box... so it's come time to re-attach them and I'm seeing that all the bolts are not also in the box.

    Most of the bolts I need I've been able to find online but I need two bolts described as FLANGE (8X48) 90180-MA5-771 and I can't seem to find anywhere with stock.

    Some say it's temporarily unavailable, one said it's been discontinued.

    Does anyone know where I can find one or have a suggestion for if it has been discontinued?

    Thanks so much!

  2. #2
    CB750 Guru amc49's Avatar
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    Likely NLA.

    8 mm. bolt maybe 1.25 thread and 2 inches long, add a washer under it to make the length closer to the 48 of the spec. At least 10.8 property class bolt. Ace Hardware will have them.

  3. #3
    CB750 New Member Funkateer's Avatar
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    Would an 8x49 bolt work? Would I need to use a washer with it?

  4. #4
    CB750 Guru amc49's Avatar
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    The washer spreads out the load a bit better than bolt head alone. FYI, a flange bolt is a hex head bolt with the washer molded with it to be round instead of 6 sided.

    Yes, that would likely work. Make sure the 1.25 thread pitch is correct by screwing bolt in by hand before putting the wrench to it. Most 8 on motorcycle are 1.25 but a few aren't.

  5. #5
    CB750 New Member Funkateer's Avatar
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    Awesome and good to know... thanks!

  6. #6
    CB750 Enthusiast keges335's Avatar
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    Try a Honda Dealer that has parts locater And give him the # if he don"t have them,. He can tell you a Dealer that would,.,

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