Thanks again, buys. I agree on the mesh and I've also had a look at the crawler chains. Those look pretty good. But I fear even with those that it will be slippery. I'm contemplating to weave my own using ladder chain links and bending the ends another 90 degrees so that there will be a quite flat surface from the ladder chain against the rubber tire and then actual spikes (from the ends that stick out) that will grip on the ice.
Stein :-)