yes the R2 is a BB86 which uses press fit bearings but that will not limit crank choices as now every manufacture makes a BB86 bearing set for there cranks. campy,shimano/fsa,sram, only exceptions i can think of off the top of my head,
vuma quad's and ec90's true that the new R2 bikes are not going to be integrated seat post but will still be using the HMX carbon and not the lower HMF carbon ...