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@terryives
I cant guess how many bottom brackets ive removed in the past for bike shops in the three counties, hundreds, and i make good money at it. There is no need to use caustic or penetrating oil and it only takes about half an hour if it is brutally seized. All one needs to have is the right tools. The removal tools that one buys from cycle shops are only any good for moderatly seized brackets and they seem to be designed to strip all of the teeth out when any overload is exerted on them. One problem with bottom bracket design is that the teeth are never deep enough. After i remove an old bb i also clean out the threads with a thread tap(left and right). Anyone out there want to challenge me? ime up for it.