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  1. #1
    Senior Member KDC1956's Avatar
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    Metal BB cup 68mm

    Has anyone use a metal BB cup on your bicycle?
    Info needed here thanks.

  2. #2
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    Well no difference between an alloy one and a steel one if they have the same thread, 68 mm bb shell = english threading.

    Ps: what in the world do you want to know? u have no question asked man.

  3. #3
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    No, WE need more info. What is it you want to know?

  4. #4
    Senior Member KDC1956's Avatar
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    Are they any better than the plastic one that comes with the BB.Or is it a waste of money?

  5. #5
    Constant tinkerer FastJake's Avatar
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    Ohhh i see. You're talking about a cartridge BB, yes? I believe the part you're referring to is called the lockring.

    Over time, the plastic lockrings can degrade and crumble, but this really isn't an issue unless you're removing the BB to put on another bike. In that case, you'd need to buy a new plastic or metal lockring.
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

  6. #6
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    In general, cartridge BBs with metal cups cost a tad more, but personally I would pay the few extra bucks just for the extra durability. With that said, the non-drive side cup on a cartridge BB does nothing but fill space and keep the BB itself from flexing too much within the BB shell. So if you honestly want to save a few bucks, I doubt its really an issue, thousands of people use plastic cups with no issues. Good luck!

    Cheers
    lverhagen
    Rex Kramer: Striker, listen, and you listen close: flying a plane is no different than riding a bicycle, just a lot harder to put baseball cards in the spokes.

    - Airplane!

    Quote Originally Posted by Phil_gretz View Post
    I don't know about style, because I live in the suburbs.

  7. #7
    Senior Member KDC1956's Avatar
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    Thanks to all guess I will order one to use on my BD setup.

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