When I picked up my S1 I was pleaseantly surprised to find near new Nantang 6 * 16 tyres. They are the little 6 * 16 snow (tractor) tread tyres. Problem is there are only 3. I have 2 spare wheels, both with rubber that is close to perished.
Are the Nantang 6 * 16's still available? I vaguely remember somebody saying they were scarce. It would be silly to buy 4 new tyres when I only need 1 to complete the set.