I have an old 2001 Schwinn Homegrown Pro that I want to upgrade to a 10-speed drivetrain. I'd like to do it myself as a learning exercise, but I'm not sure what kind of tool I need to remove the old bottom bracket (or to install the new one, for that matter). The crank is a Deore XT Hollowtech FC-M751, but I am not sure what the bottom bracket is. The original specs of the bike are at this page
But it lists the bottom bracket as "unspecifed." It's dark in color and has inside-facing splines, but there are no obvious markings on it.
So, what do I need in order to remove this?