A nice day to everyone. With the following question! Vehicle: Fiat 500e 3+1, HSN/TSN 1727/ANV, EZ 03.2023, KW 87 Unfortunately, the entry of the HSN/TSN does not make any progress in the open market, or I find no answer. On occasion 4 completely winter bikes (with rims) are to be purchased (no special requests). Only suitable for everyday use. What kind of RDKS system is original installed in the vehicle. Active or passive? Tyre valve, or above speed? Can be ordered on the free Zub.-Markt, a pre-assembled complete set of wheels including RDKS. Can the RDKS be learned privately, for the first time or simply unlocked, or is a special device necessary for possibly learning? Is the first equipment only possible via the dealer? What other special features are to be taken into account when changing wheels (complete new set)?. Ciao Pe.