Hollowtech stuff like that is 68/73, for a 68mm shell you use 5mm of spacers DS and 2.5mm NDS (used to all be 2.5mm spacers but one of those is split into a really thin one and a less thin one now). That effectively makes it a 73mm shell and the crankset is for both.
Can i fit a 73mm chainset into a 68mm shell using the spacers supplied with the bb (hollowtech)?