I have two sets, (four total), of unmounted Hoosier Form. E rears, 22 by 10 by 13, R-45B, SCCA Spec (43301). These were new in Spring 2011, have always been in bags, never mounted. I have too many tires; cost new was $225.' ish. For sale for $45. per tire, plus shipping from my 49686 zip. Thanks