Hello together, first I thought my R1100RS,Bj 93 (exchange gearbox 94)has gear jumper (known problem). With Sozius, or in the mountains or at full speed there is a strong jerk in every(!) course, but the gear does not jump out, it accelerates immediately after that. Now someone put me on the idea that could also be the cardan drive that slips through, has there any experience with similar problem ? asks blauagxy