I've gone through three sets of GDTs. Overall I was very satisfied with them. The silica carbide granules embedded into the aggressive tread worked great on ice and snow. It's no substitute for...

Green Diamond manufactures and sells winter tires. Years ago when I bought my first set of Green Diamond Icelander tires, molding silicium carbide granules into the rubber compound was a rather...

I ordered a set of four tires over their internet site nearly two months ago. I received a swift email confirmation letter, but have heard not a word since that time. Now I notice that their...