Help with Fisher Bottom Bracket Removal- Mtbr.com
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  1. #1
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    New question here. Help with Fisher Bottom Bracket Removal

    I have a vintage (early 90s) Fisher AL-1 with a press-fit bottom bracket that I'm trying to remove. The bottom bracket has two retaining circular clips that I've removed and two standard looking, sealed bearings on the outside. It looks a lot like this one from a Fisher Mt. Tam.

    Finding bearings shouldn't be too difficult if they are standard bearings. Alas, how does one press the bottom bracket out? I have a standard cartridge puller but that (obviously) is no use here

    The frame is aluminum and the bearing races steel.

  2. #2
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    Just in case anyone else encounters one of these. I ended up drilling some blocks of hardwood to make a simple puller. The longer piece of oak had a 1 1/4" hole drilled in it that was large enough for the bearing to pass through but small enough to engage with the lip of the frame around the bottom bracket . The smaller pieces of maple had small holes large enough for the square end of the bottom bracket spindle to pass through. I used the crank bolt and a larger diameter washer to spread the force across the blocks of wood. The bottom bracket spindle has a lip so tightening the crank bolt pulled the bearing from the frame. Repeated on each side.
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  3. #3
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    Do you have a mallet/ hammer?
    WTB: Bomber Z2 1 1/8 steerer, in good to excellent shape OR bomber rebuild kit.

  4. #4
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    Quote Originally Posted by colker1 View Post
    Do you have a mallet/ hammer?
    I'm always leery of reaching for a mallet with my old bikes. I didn't want to damage the spindle as that would leave me needing to shim a cassette in.

    The bearings are standard 6003-2rsh, cheap, and I was able to find them locally.

    I hope to press the new bearings in using some hardwood and clamps

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