Hi to all of you OTB members. I have a question about ballisted tires. I have a B2400 with turf tires and chains. I purchased it used from a school. It was probably stored inside. I have to store it outside in a shed. I came to find out it has only water as ballist. I use it to skid firewood logs in the winter here in PA. Last winter was warm so no freezing problems, this year it's getting cold. Can I damage the tires or rims if it freezes or if I use the tractor when they are frozen? Has anyone ever had tires foam filled? I know I need to address this problem but winter has caught up with me. All suggestions would be appreciated. The info I gotten in the past from OTB members has been great. Thanks to all. MICOMIKE.