If you have a compressor you can wash them with a sponge then blow them dry . But chrome rusts and chips off so they must be dry as sticks , Then cut your micro duster into thin strips slip them in between your wires with a good quality liquid wax ( ie Auto Glym ) and pull each end on the duster . Once you have cleaned out the dirt use the other strips to slot between your spokes and polish them to a shine . A problem is with chrome and polished s/steel around the base of the spokes near the tyre you have a habit of getting your finger in the wide bits and pulling the duster around the dust scratches the chrome and you can see it in the shine around the rim of the wheel . Sorry but there is no easy way . Also use pipe cleaners on the hub
