Issue link: http://read.dmtmag.com/i/34501
Size: 275/80R22.5 Overall Diameter: 40.1 Inches (decimal) 0.03125 0.06250 0.09375 0.12500 0.15625 0.18750 0.21875 0.25000 0.28125 0.31250 0.34375 0.37500 0.40625 0.43750 0.46875 0.50000 Inches (fraction) 1⁄ 32 1⁄ 16 3⁄ 32 1⁄ 8 5⁄ 32 3⁄ 16 7⁄ 32 1⁄ 4 9⁄ 32 5⁄ 16 11⁄ 32 3⁄ 8 13⁄ 32 7⁄ 16 15⁄ 32 1⁄ 2 Millimeters 0.8 1.6 2.4 3.2 4.0 4.8 5.6 6.4 7.1 7.9 8.7 9.5 10.3 11.1 11.9 12.7 Degrees 0.04 0.09 0.13 0.18 0.22 0.27 0.31 0.36 0.40 0.45 0.49 0.54 0.58 0.63 0.67 0.71 SPEED SYMBOL The ISO* SPEED SYMBOL indicates the speed at which the tire can carry a load corresponding to its Load Index under service conditions specified by the tire manufacturer.** Speed Symbol A1 A2 A3 A4 A5 A6 A7 A8 Speed kph 5 10 15 20 25 30 35 40 B50 C60 D65 E70 F80 G90 J K L M N mph 2.5 5 10 12.5 15 20 100 110 120 130 140 22.5 25 30 35 40 43 50 56 62 68 75 81 87 * International Standardization Organization ** Exceeding the legal speed limit is neither recommended nor endorsed. Section Nine: Appendix 117