def option5():
    #Bike maintenance list
    bike_maintenance_list = []
    print("\nOption chosen: ",option_list[option - 1] + "\n")
    print("Bike No. Batt % Last Maintenance KM since Last Reason/s")
    print("{} {} {} {} {}".format("-"*8,"-"*6,"-"*16,"-"*13,"-"*8))
    for n in range(len(bike_info_1)):
        if (bike_info_1[n][5] == "Y"):
             bike_maintenance_list.append(bike_info_1[n])
    for i in range(len(bike_maintenance_list)):
        print("{:<9}{:<7}{:<17}{:<14}{}".format(bike_maintenance_list[i][0],bike_maintenance_list[i][2],
                                                bike_maintenance_list[i][3],bike_maintenance_list[i][4],
                                                find_reasons(bike_maintenance_list[i][2],bike_maintenance_list[i][3],bike_maintenance_list[i][4])))
    i = 0
    bike_no = input("\nBike No.: ")
    while i < (len(bike_info_1)):
        #checks every nested list for that bicycle
        if(bike_no not in bike_info_1[i]):
            i += 1
            #if the check reached the last nested list and still isnt found, it isnt inside
            if(i == len(bike_info_1)):
                print("No such bicycle.")
                bike_no = input("Bike No.: ")
            #if it is inside, check if it requires servicing
        else:
            if(bike_info_1[i][5] != "Y"):
                print("Bicycle {} not due for servicing.".format(bike_no))
                bike_no = input("\nBike No.: ")
            #if it does, reset variables
            else:
                print("Bicycle {} serviced.\n".format(bike_no))
                bike_info_1[i][5] = "N"
                bike_info_1[i][4] = "0.00"
                bike_info_1[i][3] = time.strftime("%d/%m/%Y")
                bike_info_1[i][2] = "100"
                break

    #reprint updated list to remove the recently serviced bicycle
    bike_maintenance_list = []
    print("Bike No. Batt % Last Maintenance KM since Last Reason/s")
    print("{} {} {} {} {}".format("-"*8,"-"*6,"-"*16,"-"*13,"-"*8))
    for n in range(len(bike_info_1)):
        if (bike_info_1[n][5] == "Y"):
             bike_maintenance_list.append(bike_info_1[n])
    for i in range(len(bike_maintenance_list)):
        print("{:<9}{:<7}{:<17}{:<14}{}".format(bike_maintenance_list[i][0],bike_maintenance_list[i][2],
                                                bike_maintenance_list[i][3],bike_maintenance_list[i][4],
                                                find_reasons(bike_maintenance_list[i][2],bike_maintenance_list[i][3],bike_maintenance_list[i][4])))