STYLE D (2R24) IS AVAILABLE IN THE FOLLOWING SIZES 2R24 - 10" - 5.00 3R24 - 11" - 5.25 4R24 - 12" - 5.50 6R24 - 14" - 5.75 8R24 - 16" - 6.00 10R24 - 18" - 6.25 12R24 - 20" - 6.50