| SIZE | CONSTRUCTION | PATTERN | PERMITTED RIM WIDTH |
OPTIMUM RIM WIDTH |
DIAMETER | OVERALL WIDTH |
TREAD WIDTH |
REVS PER MILE @100 MPH |
COMPOUNDS | ||||||
| inch | inch | mm | inch | mm | inch | mm | inch | soft | med | hard | wet | ||||
| TOURING CAR | |||||||||||||||
| 210/650R18 | B58D | SLICK/WET | 8.0-9.0 | 8.2* | 649 | 25.6 | 227 | 8.9 | 210 | 8.3 | 789 | 912 | 866 | 356/287 | 447 |
| 212/650R19 | B52D/B52W | SLICK/WET | 7.5-8.5 | 8.2* | 646 | 25.6 | 227 | 8.9 | 210 | 8.3 | 789 | 912/348 | 866 | 356 | 447 |
9"* OVERALL WIDTH REGULATION
| SALOON CAR-RADIAL INCLUDING GROUP 'N' 9"* OVERALL WIDTH REGULATOR | |||||||||||
| 165/505R13 | A8D | SLICK/WET | 5.0-7.0 | 6.0 | 506 | 19.9 | 179 | 7.0 | 160 | 6.3 | 1012 |
| 215/505R13 | A8W | SLICK | 7.5-9.0 | 8.5 | 506 | 19.9 | 230 | 9.1 | 215 | 8.5 | 1012 |
| 200/530R13 | A8D | SLICK/WET | 6.5-8.0 | 7.0 | 532 | 21.0 | 210 | 8.3 | 195 | 7.7 | 963 |
| 235/530R13 | A8D A8W | SLICK/WET | 8.0-10 | 8.0 | 532 | 21.0 | 237 | 9.3 | 232 | 9.1 | 963 |
| 175/575R14 | A8D A8W | WET | 5.5-7.5 | 6.5 | 557 | 22.0 | 194 | 7.6 | 175 | 6.9 | 919 |
| 185/575R14 | A8W | SLICK/WET | 5.5-7.5 | 6.0 | 557 | 22.0 | 194 | 7.6 | 187 | 7.4 | 919 |
| 175/575R15 | A8D A8W | SLICK/WET | 5.5-7.5 | 7.0 | 559 | 22.0 | 191 | 7.5 | 173 | 6.8 | 916 |
| 185/575R15 | A46D/A8W | SLICK/WET | 6.0-8.0 | 7.5 | 559 | 22.0 | 204 | 8.0 | 186 | 7.3 | 916 |
| 200/575R15 | A46D/A22W | SLICK/WET | 6.5-8.5 | 8.0 | 559 | 22.0 | 216 | 8.5 | 195 | 7.7 | 916 |
| 185/580R15 | A8D A8W | SLICK/WET | 6.5-7.5 | 7.0 | 583 | 23.0 | 205 | 8.1 | 185 | 7.3 | 878 |
| 200/580R1 | A46D A22W | SLICK/WET | 6.5-8.5 | 7.5 | 583 | 23.0 | 216 | 8.5 | 195 | 7.7 | 878 |
| 225/580R15 | A46D A22W | SLICK/WET | 7.5-10 | 9.0 | 583 | 23.0 | 250 | 9.8 | 225 | 8.9 | 878 |
| 210/605R16 | A46D A22W | WET | 6.5-8.5 | 8.0 | 607 | 23.9 | 223 | 8.8 | 212 | 8.3 | 842 |
| 235/605R16 | A8D A8W | WET | 8.0-9.5 | 8.0 | 608 | 23.9 | 239 | 9.4 | 233 | 9.2 | 842 |
| 265/630R16 | A8D A8W | SLICK/WET | 9.5-10.5 | 10.0 | 633 | 24.9 | 278 | 10.9 | 260 | 10.2 | 809 |
| A22D A22W | |||||||||||
| FOR 17" AND ABOVE SEE 'OTHER GT' IN THE CIRCUIT SECTION | |||||||||||
| SALOON CAR-CROSSPLY INCLUDING GROUP 'N' | |||||||||||
| 160/490-13 | D105 | SLICK | 4.5-7.5 | 6.0 | 492 | 19.4 | 188 | 7.4 | 156 | 6.1 | 1041 |
| 180/490-13 | D105 | SLICK | 5.5-8.0 | 8.0 | 497 | 19.6 | 222 | 8.7 | 179 | 7.1 | 1030 |
| 165/525-14 | D106A | SLICK | 5.0-6.0 | 5.5 | 513 | 20.2 | 186 | 7.3 | 165 | 6.5 | 998 |
| 175/525-14 | D106A | SLICK | 6.0-7.0 | 6.5 | 513 | 20.2 | 198 | 7.8 | 180 | 7.1 | 997 |
| 165/575-14 | D105 | SLICK | 5.5-7.0 | 6.0 | 552 | 21.7 | 189 | 7.5 | 168 | 6.6 | 927 |
| 185/575-14 | D105 | SLICK | 5.5-8.0 | 7.0 | 557 | 21.9 | 193 | 7.6 | 186 | 7.3 | 921 |
| 175/575-15 | D105 | SLICK | 5.5-6.5 | 5.5 | 560 | 22.1 | 180 | 7.1 | 175 | 6.9 | 914 |
| 185/575-15 | D105 | SLICK | 6.0-7.0 | 6.0 | 560 | 22.1 | 190 | 7.5 | 185 | 7.3 | 914 |
| 205/575-15 | D105 | SLICK | 7.0-8.0 | 7.0 | 550 | 21.7 | 212 | 8.4 | 204 | 8.0 | 931 |
| 195/565-15 | D105 | SLICK | 6.0-6.5 | 6.0 | 564 | 22.2 | 202 | 8.0 | 194 | 7.6 | 908 |
| 175/570-15 | D104 | SLICK | 5.5-7.5 | 6.5 | 570 | 22.4 | 203 | 8.0 | 172 | 6.8 | 899 |
| 185/570-15 | D105 | SLICK | 6.0-8.0 | 7.0 | 570 | 22.4 | 211 | 8.3 | 182 | 7.2 | 899 |
| 200/580-15 | D105 | SLICK | 6.0-8.0 | 7.0 | 580 | 22.8 | 213 | 8.4 | 194 | 7.6 | 883 |
| 225/580-15 | D105 | SLICK | 7.0-9.0 | 8.0 | 580 | 22.8 | 238 | 9.4 | 219 | 8.6 | 883 |
| 205/580-16 | D105 | SLICK | 6.0-8.0 | 7.0 | 580 | 22.5 | 215 | 8.5 | 205 | 8.0 | 879 |
| 225/580-16 | D105 | SLICK | 7.0-9.0 | 8.0 | 583 | 23.0 | 241 | 9.5 | 225 | 8.9 | 879 |
| 225/605-17 | D104 | SLICK | 7.9-9.0 | 8.0 | 609 | 24.0 | 230 | 9.1 | 220 | 8.7 | 844 |
| 240/605-17 | D104 | SLICK | 8.0-9.5 | 8.5 | 610 | 24.0 | 251 | 9.9 | 230 | 9.1 | 839 |
| ROAD LEGAL SALOON | |||||||||||
| 165/70R10 | D93J | 3.5-5.0 | 4.5 | 488 | 19.2 | 175 | 6.9 | 134 | 5.3 | 1100 | |
| 165/70R13 | D83J | 4.0-5.0 | 4.5 | 564 | 22.2 | 161 | 6.3 | 126 | 5 | 908 | |
| 185/70R13 | D83J | 4.5-5.5 | 5.0 | 592 | 23.3 | 189 | 7.4 | 160 | 6.3 | 893 | |
| 185/60R13 | D84J | 5.0-6.0 | 5.5 | 548 | 21.6 | 186 | 7.3 | 160 | 6.3 | 947 | |
| 185/60R14 | D84J | 5.0-6.0 | 5.5 | 574 | 22.6 | 186 | 7.3 | 160 | 6.3 | 921 | |
| 195/60R14 | D84J | 5.5-6.5 | 6.0 | 588 | 23.2 | 206 | 8.1 | 168 | 6.6 | 898 | |
| 205/60R15 | D84J | 5.5-6.5 | 6.0 | 626 | 24.7 | 212 | 8.4 | 176 | 6.9 | 843 | |
| 175/60R13 | D98J | 5.0-6.0 | 5.0 | 540 | 21.3 | 175 | 6.9 | 160 | 6.3 | 982 | |
| 195/60R14 | D01J | 5.5-7.0 | 6.0 | 586 | 23.1 | 205 | 8.1 | 196 | 7.7 | 905 | |
| 195/55R15 | D01J | 5.5-7.0 | 6.0 | 592 | 23.3 | 200 | 7.9 | 196 | 7.7 | 892 | |
| 205/60R15 | D01J | 5.5-7.5 | 6.0 | 623 | 24.5 | 212 | 8.4 | 205 | 8.1 | 848 | |
| 225/50R15 | D01J | 6.0-8.0 | 7.0 | 603 | 23.7 | 225 | 8.9 | 222 | 8.7 | 876 | |
| 205/50R16 | D01J | 5.5-7.5 | 6.5 | 610 | 24.0 | 210 | 8.3 | 206 | 8.1 | 870 | |
| 225/45ZR16 | D01J | 7.5-8.5 | 7.5 | 606 | 23.9 | 230 | 9.1 | 222 | 8.7 | 876 | |
| 215/45ZR17 | D01J | 7.0-8.0 | 7.0 | 628 | 24.7 | 218 | 8.6 | 210 | 8.3 | 840 | |
| 235/40ZR18 | D01J | 8.0-9.5 | 8.5 | 643 | 25.3 | 247 | 9.7 | 226 | 8.9 | 821 | |
| 185/55R14 | D98J | 5.0-6.5 | 5.5 | 560 | 22.1 | 185 | 7.3 | 175 | 6.9 | 947 | |
| 185/55R14 | D98J | 5.0-6.5 | 5.5 | 560 | 22.1 | 185 | 7.3 | 175 | 6.9 | 947 | |
| 195/60R14 | D98J | 5.5-6.5 | 6.0 | 590 | 23.2 | 200 | 7.9 | 185 | 7.3 | 896 | |
| 195/55R15 | D98J | 5.5-6.5 | 6.0 | 592 | 23.3 | 200 | 7.9 | 190 | 7.5 | 893 | |
| 205/50R15 | D98J/D01J* | 5.5-7.0 | 6.5 | 590 | 23.2 | 210 | 8.3 | 195 | 7.7 | 896 | |
| 225/50R15 | D98J | 6.0-7.5 | 7.0 | 605 | 23.8 | 230 | 9.1 | 215 | 8.5 | 877 | |
| 205/50R16 | D98J | 5.5-7.0 | 6.5 | 611 | 24.0 | 212 | 8.3 | 210 | 8.3 | 868 | |
| 225/45VR16 | D98J | 7.0-8.5 | 7.5 | 611 | 24.0 | 225 | 8.9 | 220 | 8.7 | 868 | |
| 235/45ZR17 | D98J/D01J* | 7.5-9.0 | 8.0 | 644 | 25.4 | 242 | 9.5 | 232 | 9.1 | 824 | |
| 255/40ZR17 | D98J/D01J* | 8.5-10.0 | 9.0 | 638 | 25.1 | 261 | 10.3 | 246 | 9.7 | 832 | |
| Compond | Use | |
| Dry | ||
| 204 | VINTAGE | |
| 484 | SOFT VINTAGE, POST HISTORIC | |
| 770 | STANDARD GROUP N | |
| 720 | SALOON MEDIUM GT | |
|
344/356 | MEDIUM HARD GT |
| 894 | HARD ONE BRAND | |
| 337/808 | MEDIUM HADRD GT | |
| 252/866 | MEDIUM SOFT GT | |
| 662 | HARD SINGLE, SEATER | |
| 246/348 | SOFT SALOON/HARD PROTOTYPE | |
| 320/912 | SOFT GT | |
| 273 | SOFT POTOTYPE | |
| WET | ||
| 500 | ONE BRAND | |
| 404 | GENERAL | |
| 447 | TOURING CAR | |
| 497 | GT | |