Shimano Bottom Bracket

SM-BB93:

SHIMANO XTR - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width

BSA - Threaded Bottom Bracket SM-BB93 (ISMBB93B)

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SM-BB94-41A:

SHIMANO XTR - Bottom Bracket - Press-Fit - HOLLOWTECH II - 89.5/92 mm shell width

PF92 - PressFit Bottom Bracket SM-BB94-41A (ISMBB9441A)

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BB-MT800-PA:

SHIMANO DEORE XT - Bottom Bracket - Press-Fit - HOLLOWTECH II - 89.5/92 mm shell width

PF92 - PressFit Bottom Bracket BB-MT800PA (IBBMT800PA)

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BB-MT801:

Shimano XT, SLX, LX and Groupless Hollowtech II - Bottom Bracket - Threaded - HOLLOWTECH II - 68/73 mm shell width

BSA - Threaded Bottom Bracket BB-MT801B (IBBMT801B)