Wunderlich - Aktivkomfort SeatRelaxed. Secure. The Wunderlich AKTIVKOMFORT seat for rider and passenger of the BMW S and M 1000 XR Functions and Product Features A relaxed and active riding experience increases passive safety Sport ergonomic 3D contour supports the natural position of the pelvis and comfortable leg posture when riding and standing Special passenger contour optimally integrated with improved support, especially during braking Special core structure prevents sagging