Specific rear rack for MONOLOCK or MONOKEY top-case to be combined with the M5, M7, M8A, M8B, M9A or M9B MONOKEY plate, or with the M5M or M6M MONOLOCK plate, or with the aluminium bag holder EX2M, or with the plate already included in the MONOLOCK top-case / if combined with M8A, M8B, M9A, M9B it does not allow the assembly of the stop light kit or the remote control device on the case / maximum load allowed 6 kg