Adapter cardan for 2-valve transmission
Is needed when converting to a four-valve swingarm.
The cardan adapter connects the 2-V transmission of the R models up to 1996 with the 4-V swingarm of the BMW R1100 R - GS produced from 1993.
The kardan is fixed with 4 screws.
For all R80/100 GS, R and R80 G/S, ST.