VARIOTOP MBK autom. Motorcycles Make Model MBK MBK 51 V 50 (AV 10) It disconnects the original clutch. MBK MBK MAGNUM 50 (AV 10) It disconnects the original clutch. MBK MBK PASSION 50 (AV 10) It disconnects the original clutch. MBK MBK RACING 50 (AV 10) It disconnects the original clutch. MBK MBK ROCK 50 It disconnects the original clutch.