BMW R 1200 S Rider's Manual page 56

Check tyre pressures
4
against the data below.
Tyre pressure, front
54
2.2 bar (One-up, tyre cold)
2.5 bar (Two-up and/or with
luggage, tyre cold)
Tyre pressure, rear
2.5 bar (One-up, tyre cold)
2.9 bar (Two-up and/or with
luggage, tyre cold)
z
If tyre pressure is too low:
Correct tyre pressure.