My dad would always keep two sets of rims for the rear tires. One with
studded snows, the other with "highway' tires. In the winter the studded
snows would stay on the car and the 'summer' tires and rims with carefully
installed steel chains, would go in the trunk. If we needed chains, he just
pulled over and changed the rear rims!

I think chains work MUCH better, however thy are harder on the tires, harder
to install properly, and more likely to do body damage if not installed
properly.

Allan Bagley
86 westy