Hi,
I know this is an old thread, but I just moved to Switzerland, and have a '04 RX, AWD, with air suspension.
Where I live it is mandatory to have snow chains, in addition to winter tires! If in an accident, and the circumstances called for snow chains, and you did not have them fitted on the driving tires, you are 100% at fault. Hence, I have just bought Pewag SUV Sportmatik snow chains for my 235/55/18 winter tires. Of course there is only 1 pair, which I have tested fit on the front tires.
I am not able to custom add wheel spacers, and would like to know how to use the snow chains in the RX, and what to look out for when only fitting snow chains on the front tires?
KB