Specific rear rack for MONOLOCK® or MONOKEY® top-case to be combined with the M5, M7, M8A, M8B MONOKEY® plate, or with the M5M or M6M MONOLOCK® plate, or with the aluminium bag holder EX2M / if combined with M8A, M8B it does not allow the assembly of the stop light kit or the remote control device on the top-case