For Press-Fit bottom brackets the bearing housings are pressed right into the bottom bracket block. They are not screwed into the bottom bracket block as usual. The large bearing housing enables a wider connection of the down-tube and the chain-stays, resutling in a much more rigidity. Positive effect: More efficiency when pedaling and more rigidity of the bottom bracket area when riding standing up for example.
BB92 Press-Fit bottom brackets are used for following models:
_ R.R2 HT and FS
_ R.R1 HT and FS
_ R.C1 HT and FS
_ R.X1 FS and R.X2 FS
_ R.E1 FS