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  1. #1
    Squelch the weasel.
    Reputation: JaquesN's Avatar
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    Crown race seat of brass

    Would it work to cut a crown race seat into a brass fillet, rather than brazing on an additional steel seat above the fillet, on a unicrown fork? Would the brass be too soft, and eventually deform?

    Thanks,
    Jim

  2. #2
    mtbr member
    Reputation: Eric Malcolm's Avatar
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    Jim

    Many years ago, when Campagnolo was introducing headsets, the bottom race was a larger diameter than the forks of the day around this end of the world, and they had to be beefed up with brass and re-cut so they whole headset would work. We did not have Loctite back then. They all held up, and I have wondered doing the same on contempary forks. IMO, you will be fine, keeping a nice lower line (the bit that is visible but not structural) will be a mild challenge for anyones skill-set. Go for it.

    Eric
    If I don't make an attempt, how will I know if it will work?

  3. #3
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    I've built up worn crown races with brass, never had a problem - getting it neat would be the challenge, the advantage of the steel race seat is you have something to build the fillet up against.

  4. #4
    Squelch the weasel.
    Reputation: JaquesN's Avatar
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    Thanks for your replies.

    I guess I would cut the seat on a lathe.

    Jim

  5. #5
    RCP Fabrication
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  6. #6
    Randomhead
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    that Ritchey fork had a steel sleeve, it may well have a steel flat as well. I definitely would use something like a paragon. In a pinch, I might machine down a piece of 4130 tubing that is a slip fit over the steerer

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