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  1. #1
    Old biker
    Join Date
    Jun 2006
    Location
    Radium Springs, NM
    My Bikes
    Custom Cammack touring road and 1987 Fisher Hoo Koo E Koo
    Posts
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    Stay and fork vent holes necessary?

    I have fretted over this for years. Back in the late 1970's I build 15 silver brazed Reynolds 531 frames and forks. I didn't drill vent holes in the seat stays of fork blades in any of them. The main reason was conern that water from wet roads could get inside and cause rust.
    Is there a definite reason for vent holes other than making it easier to braze?

  2. #2
    Senior Member Nessism's Avatar
    Join Date
    Jun 2004
    Location
    Torrance, CA
    My Bikes
    Homebuilt steel
    Posts
    2,324
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    Vent holes let expanding air out and it also lets water in/out during the de-fluxing process - flux is corrosive and should be removed. I like to have vent holes on both ends of the stays so water can completely fill the inside of the tube. Some builders come back and close up the vents after cleaning - do a quick braze where a nail is inserted in the vent hole.
    Becareful buying/selling bike parts on-line. I learned the hard way. :(

    Good/Bad Trader Listing

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