have just had to order a new rear master cylinder for the gs. 
apparently none of the major suppliers dont do a replacement kit for the r1100gs. n bmw didnt make a repair kit. (i was told)..
brembo mite, dunno?
the units complete, so not wanting to fit a secondhand part n find it the same as my old unit
got new

apparently none of the major suppliers dont do a replacement kit for the r1100gs. n bmw didnt make a repair kit. (i was told)..
brembo mite, dunno?
the units complete, so not wanting to fit a secondhand part n find it the same as my old unit

got new

