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  1. #1
    Newbie
    Join Date
    Jul 2011
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    Some basics (stupid questions)

    Regarding the bottom bracket shell, do framebuilders modify it at all or just weld the tubes to the shell as they buy it? I know that there are a lot of different types of bottom brackets so how does that fit into building the bike and selecting a bottom bracket shell? If I build a frame, do I need to pick the exact bottom bracket before I start?

    What's the best way to braze seat/chain stays to track dropouts? Do you need to notch the stays and then braze it in and fill the gaps?

    Thanks and apologies for the basic questions.

  2. #2
    Randomhead
    Join Date
    Aug 2008
    Location
    Happy Valley, Pennsylvania
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    you don't have much choice in BB shells. Generally, there are a couple of degrees of slop available, and after that you might have to bend the sockets. The lower head lug seems like the one I have to modify most often.

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