A Tire Size Designations and Types

Section 428.APPENDIX A   Tire Size Designations and Types The purpose of this Appendix is to show the tire size designations and types listed in Federal Motor Vehicle Safety Standard 109 (49 CFR 571.109), as amended.  This Appendix lists, under each type of tire, the size designation of the smallest and the largest tire for each rim size shown in Standard 109 under that type of tire.  All similar intermediate size designations for each rim size listed herein under each tire type are considered to be included.  (Note:  The rim size is the two digit number, such "13" of "16", at the end of each tire size designation.) A) Conventional and Low Section Height Bias Ply Tires: 6.00-13 through 7.00-13 6.00-14 " 9.50-14 6.00-15 " 9.15-15, plus L84-15 6.00-16 " 7.50-16 6.50-17 " The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash." B) "70 Series" Bias Ply Tires: A70-13 through D70-13 D70-14 " L70-14 C70-15 " L70-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". C) Bias Ply Tires: "Super Balloon" Sizes 4.80-10 through 5.90-10 5.20-12 " 6.20-12 5.20-13 " 6.90-13 5.20-14 " 6.45-14 7.20-15 " 6.40-15 "Low Section" Sizes 5.00-12 through 6.00-12 5.00-13 " 7.50-13 5.50-15L " 7.00-15L "Super Low Section" Sizes 145-10/5.95-10 125-12/5.35-12 through 155-12/6.15-12 135-13/5.65-13 " 185-13/7.35-13 135-14/5.65-14 " 155-14/6.15-14 165-14 " 255-14 125-15/5.35-15 " 175-15/7.15-15 165-15 " 235-15 5.0-15 " 5.5-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". D) Dash ( – ) Radial Ply Tires: 145-10 125-12 through 155-12 135-13 " 195-13 135-14 " 225-14 125-15 " 240-15 185-16 165-400 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". E) "77 Series" Bias Play Tires: 5.9-10 5.9-12 through 6.2-12 6.2-13 " 6.9-13 G77-14 6.2-15 through 6.9-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". F) Type "R" Radial Ply Tires: 5.20R10 5.22R12 through 5.60R12 5.00R13 " 7.25R13 5.20R14 " 7.50R14 5.60R15 " 7.60R15 The letter "H", "S" or "V" may be included in any specified tire size designation adjacent to the "R". G) "70 Series" Type "R" Radial Ply Tires: AR70-13 through DR70-13 CR70-14 " LR70-14 DR70-15 " MR70-15 The letters "HR", "SR", or "VR" may be included in any specified tire size designation adjacent to or in place of the "dash". H) Type "R" Radial Ply Tires: 145R10 125R12 through 155R12 135R13 " 195R13 135R14 " 225R14 125R15 " 235-R15 The letter "H", "S" or "V" may be included in any specified tire size designation adjacent to the "R". J) "78 Series" Bias Ply Tires: A78-13 through D78-13 B78-14 " J78-14 A78-15 " N78-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". K) "60 Series" Bias Ply Tires: A60-13 through D60-13 D60-14 " L60-14 D60-15 " L60-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". L) Series 50 Cantilevered Sidewall Tires: E50C-16 through F50C-16 G50C-17 " H50C-17 L50C-18 The letters "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". M) "78 Series" Radial Ply Tires: AR78-13 through CR78-13 BR78-14 " JR78-14 AR78-15 " LR78-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the "R". O) "Low Section" Type "R" Radial Ply Tires: 140R12 through 150R12 150R13 " 170R13 150R14 180r15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the letter "R". P) Series 45 Cantilevered Sidewall Tires: F45C-16 The letter "H", "S, or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". R) "60 Series" Radial Ply Tires: AR60-13 through ER60-13 FR60-14 " GR60-14 ER60-15 " LR60-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". S) "60 Series" Radial Ply Tires: 185/60 R 13 205/60 R 14 through 245/60 R 14 255/60 R 15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the "R". T) "70 Series" Radial Ply Tires: 205/70 R 13 205/70 R 14 through 225/70 R 14 195/70 R 15 " 255/70 R 15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the letter "R". U) "60 Series" Cantilevered Tires: C60C-15 The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash". V) Series "50" Bias Ply Tires: H50-14 The letter "H", "S", or "V" may be included in any specified tire size designations adjacent to or in place of the "dash".