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  1. #1
    Freewheelin'! subsistbmx@hotm's Avatar
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    Bottom Bracket Drain

    Is a hole on the bottom bracket needed ? I just got a SPICER several days ago and it doesn't have one, anyone think I should drill out a whole or cut it into a shape of Illinois (hah, kidding) ? I guess I'm just not sold on it's use..

  2. #2
    Beausage is Beautiful Fugazi Dave's Avatar
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    Sort of depends on if you wind up with water in your frame. I've never had that problem, so I'm content with my hole-free BB shell. Just put some grease on the seatpost and you're probably fine.

  3. #3
    Freewheelin'! subsistbmx@hotm's Avatar
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    Sorry, I don't get your grease on the seatpost comment. Rust in my seat-tube ?

  4. #4
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    No, the grease is to seal it off. The seat tube is where most of the water gets in. Just drill a hole, 3/16" is a good size. It only takes a minute and it can only benefit your frame.
    Last edited by mander; 05-18-07 at 01:27 AM.

  5. #5
    THIS SPACE FOR RENT
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    In Chicago, hells yes. Even if you never ride in the rain, temperature differentials will result in condensation in the frame. If you head out in the rain, and you remember, put a square of tape over it, and take it off when you get back home.
    "I don't buy new frames, it just encourages them."

    -T.G.

  6. #6
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    ^ I never tape my drain hole. Any water than gets in will get right back out again. It's self-draining. That's science.

  7. #7
    THIS SPACE FOR RENT
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    Quote Originally Posted by mander
    ^ I never tape my drain hole. Any water than gets in will get right back out again. It's self-draining. That's science.
    Yeah, but any particles of road grit that get up in there and become one with your BB grease aren't going anywhere. That's also science.
    "I don't buy new frames, it just encourages them."

    -T.G.

  8. #8
    Paste Taster Retem's Avatar
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    dude use some frame saver and get onwtih life I have never had a frame with a bb vent so....
    I am dyslexic so bear with my posts.... [SIGPIC][/SIGPIC]

  9. #9
    the goal
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    Drill a hole - it takes five minutes, causes no problems and could save your frame from rusting.

    I read somewhere (probably Sheldon's site) that you can put in a piece of straightened spoke with the head inside the BB shell. It keeps the hole sealed from grit but can bounce around a bit so that water gets out and you can oush it in to drain it.

    Sounds like hassle to me, so mine just have holes in them.

  10. #10
    Senior Member
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    Quote Originally Posted by Landgolier
    Yeah, but any particles of road grit that get up in there and become one with your BB grease aren't going anywhere. That's also science.
    What harm does the grit do?

    Also, last time i replaced the bb on my alu tourer, I found a crapload of sand in the undrilled bb shell.

  11. #11
    Senior Member the pope's Avatar
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    holy crap here we go drill the hole then the tape then the whatev down the shoot hole with the grit and the condesation that's a new one its a wonder we keep these on the road

  12. #12
    Bike Honky bottom-bracket's Avatar
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    You bike will be much safer if you just don't ride it..
    FGG#1756and 5,964

  13. #13
    Senior Member Surferbruce's Avatar
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    drill it.

  14. #14
    Junior Mint wallah's Avatar
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    I just did 2 coats of framesaver in my frame tonight....I'm sure I'll sleep better, but do we really have enough rust in our metal frames over the years to weaken the tubing?? That is the question.
    Dealeo

  15. #15
    LF for the accentdeprived
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    Quote Originally Posted by mander
    What harm does the grit do?

    Also, last time i replaced the bb on my alu tourer, I found a crapload of sand in the undrilled bb shell.
    If it gets into BB bearings it kills them in no time.
    Quote Originally Posted by dutret
    Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
    Bike on flickr and on FGG

  16. #16
    domestique squeakywheel's Avatar
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    Put the drill down and go ride your bike.

    BTW, I think the grease on the seatpost is to prevent it from seizing.

  17. #17
    i don't stop travsi's Avatar
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    i also thought that in theory, a well greased seatpost would keep
    any water from getting in there (not including condesation). but
    after a week of rain, my undrilled bb shell let me know it was full
    of water, because when i leaned my bike against the wall, the angle
    was just enough to let the brown soup run out of the hole for the
    axle; meaning that the bearings were bathed in a pool of water, mmmm...

  18. #18
    Ho-Jahm Hocam's Avatar
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    There are other ways for water to get into your frame, besides your seatpost.

    Got a headset on there, aka is your bike not a unicycle? Water.
    Water bottle braze ons? Water.
    Tiny little holes in the chain and seat stays near the collar and bottom bracket? Surlys have this. Water

    Know what water does to bare cro-moly steel when it can't go anywhere? Rusts.

    Use frame saver and drill a small hole, you'll be fine. If you're worried about grit in your bottom bracket, more of it's comming in through the spindle anyway. Also, stop being an njs hipster and buy a catridge BB for 15 or 20 dollars and then you can't get your panties in a bunch over it.
    Race-o-meter:
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