bottom bracket/crankset interchangeability
i've got a 2013 specialized secteur sport disc bike. FSA tempo compact crankset with a standard sealed cartridge, square taper bottom bracket.
i'd like to upgrade to something from SRAM, either apex or rival, but they use the exterior bearing GXP style bottom bracket.
is the GXP BB compatible with my frame? or am i tied to the standard sealed-cartridge style?