This has already been discussed but I cannot find answers to my particular situation.

I have a Giant Defy 2.5 (2009) with a triple crankset. The cranks are FSA Vero 30/39/50, the cassette is a Shimano HG50, the BB is a "FSA cartridge".

I want to switch to a double. I have the opportunity to purchase a Shimano 105 5800 Groupset (it comes with - I believe - a SM-BBR60 bottom bracket). The kit has everything needed (chain, shifters, BB, brakes etc.).

My question is, will it fit? (and if so what special tools do I need to replace the BB - which I find the most confusing part of the upgrade since I am not a mechanic expert).

Thanks! (Please don't ask why, I just want to do it... I know I can perfectly ride with a triple).