Since it has a Megaexo, that frame's bottom bracket shell almost certainly threaded, most likely English, and any compatible bottom bracket can be installed. The Megaexo bottom bracket cups can be easily replaced with Shimano 5700 threaded bearings.

The Megaexo also accepts the same nominal 24 mm spindle that Shimano uses but the fit between the FSA and Shimano spindles and bearings is not always good and it would be better to use the Shimano bearings.