2002 R1150R

[Robert Silas <robert.silas@xxxxxxxxxxxx>]

I need some info about the 2002  R1150R ABS.
My son is about to buy that bike with 15,000 km on the clock. This bike has 
that integrated brake system(?) which I am not familiar with. As soon as the 
brake lever or foot brake touched a little wining noise heard. We were told 
that this is the pump for the integrated system, engaging front and rear 
brake for the touch of the hand brake lever. Also the motor vibration at low 
RPM seems to be excessive. Later on BMW returned to the old brake system, 
abandoning this integrated version.
Any experience??? Advice???
Thanks in advance
Bob Silas