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  1. #1
    mtbr member
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    '03 Mongoose Sommet headset question.

    I have a '03 Mongoose Sommet frame that i am looking to replace the integrated headset on. Because of the age of the frame, I think the OEM headset maybe was an early version the technology such that the race and bearings are substantially wider in diameter than current integrated headset. Am I SOL or are there wider diameter headsets out there that I haven't been able to find? I have a call into Mongoose, but haven't heard back yet.

    Thanks for any suggestions.

  2. #2
    Former Bike Wrench
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    Probably not SOL

    Are there cups pressed internally into the headtube? If so you have a zerostack or "semi-integrated". There is also the old ICBM integrated standard that used larger bearings than the current integrated standards (41mm and 41.8mm). If it is ICBM it will likely say on the upper race and you'll probably have to contact Cane Creek by phone to dig up some bearings for it. I'm pretty sure ICBM went away by 2003 though (my 2001 Schwinn used it).

    Zero Stack showing internal pressed in cup


    Integrated with headtube machined cup

  3. #3
    mtbr member
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    Thanks for the tip on the "semi-integrated" headset. I had never heard of them before. When I looked them up on the inernet, that's what the Mongoose has. I was able to reach Mongoose and they had some replacement headsets in stock, so I bought one of theirs.
    Thanks again.

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