I have R4 tires on my NH TC30, and I use it for blowing snow with a front snow blower. I have a 1000 ft driveway, and I live in the snow belt on the east side of Lake Michigan. I would not put chains on, as I am concerned about doing damage to the concrete in front of barn and garage. When I have the snow blower on "float", I have very poor steering control, often have to lift it and back up and try again. When the temperature is around freezing, I have traction problems too, regardless of four wheel drive and diff lock. I don't know if Nokian makes snow tires to fit my tractor, but I would be interested to hear if anybody has tried the Hakkapeliitta tractor tires and how they compare to others.