Britcar Production
Size | Pattern | Permitted
Rim Width | Optimum
Rim Width | Diameter | Overall Width | Tread Width | Revs Per Mile |
| | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
185/580R15 | slick/wet | 6.5 - 7.5 | 7 | 583 | 23 | 205 | 8.1 | 185 | 7.3 | 878 |
200/580R15 | slick/wet | 6.5 - 8.5 | 7.5 | 583 | 23 | 216 | 8.5 | 195 | 7.7 | 878 |
205/620 R17 | slick/wet | 7.0 - 9.0 | 7.5 | 616 | 24.3 | 215 | 8.5 | 203 | 8 | 822 |
215/45R17 CPD A | slick | 7.0 - 9.0 | 8 | 624 | 24.6 | 218 | 8.6 | 212 | 8.3 | |
235/610R17 | slick/wet | 8.5 - 9.5 | 9 | 608 | 23.9 | 245 | 9.7 | 226 | 8.9 | 855 |
235/640R18 | slick/wet | F 8.5 - 10.0 | Â 9 | Â 640 | Â 25.2 | Â 248 | Â 9.8 | Â 228 | Â 9 | Â 825 |
245/650R18 | slick/wet | 8.5 - 9.5 | 9 | 648 | 25.5 | 268 | 10.5 | 246 | 9.6 | 790 |
265/660R18 | slick/wet | F 10 - 11 | 10 | 655 | 25.9 | 278 | 10.9 | 252 | 9.9 | |
285/660R18 | slick/wet | F 10.5-11.5 | 11 | 655 | 25.8 | 301 | 11.9 | 277 | 10.9 | |
285/680R18 | slick/wet | R 10.5-11 | 11 | 679 | 26.7 | 302 | 11.9 | 270 | 10.6 | |
305/660R18 | slick/wet | F 11.5-12.5 | 12.5 | 656 | 25.8 | 332 | 13 | 290 | 11.4 | |
305/680R18 | slick/wet | F 11.5-12.5 | 12 | 685 | 27 | 333 | 13.11 | 290 | 11 | |
235/645R19 | slick/wet | 8.0-9.5 | 8 | 648 | 25.5 | 231 | 9.1 | 216 | 8.5 | 791 |
285/680R19 | slick/wet | 10.5-11 | 10.5 | 680 | 26.8 | 293 | 11.5 | 270 | 10.6 | 674 |
310/710R19 | slick/wet | R 12.5-13 | 13 | 711 | 28 | 354 | 13.9 | 305 | 12 | |
Radical / SR3/SR4/SR8 /Britsports Masters
Size | Pattern | Permitted
Rim Width | Optimum
Rim Width | Diameter | Overall Width | Tread Width | Revs Per Mile |
| | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
190/535R13 | slick/wet | 7.5-9.5 | 8 | 541 | 21.3 | 221 | 8.7 | 190 | 7.4 | 946 |
230/570R13 | slick/wet | 9.5 - 10.5 | 10 | 575 | 22.6 | 280 | 11.2 | 235 | 9.2 | 890 |
205/570R13 | slick/wet | 8.0 - 9.5 | 9 | 574 | 22.6 | 255 | 10 | 205 | 8.1 | 892 |
200/580R15 | slick/wet | 6.5 - 8.5 | 7.5 | 583 | 23 | 216 | 8.5 | 195 | 7.7 | 878 |
265/605R16 | slick/wet | 9.5 - 10.5 | 10 | 608 | 23.9 | 270 | 10.6 | 260 | 10.2 | 842 |
235/620R17 | slick/wet | 8.5-9.5
| 9 | 620 | 24.4 | 248 | 9.8 | 235 | 9.3 | 826 |
290/645R17 | slick/wet | 12.0-13.0 | 12 | 642 | 25.3 | 328 | 12.9 | 286 | 11.3 | 794 |
265/660R18 | slick/wet | 10-11 | 10 | 655 | 25.9 | 278 | 10.9 | 252 | 9.9 | |
305/660R18 | slick/wet | 11.5-12.5 | 12.5 | 656 | 25.8 | 332 | 13 | 290 | 11.4 | |
Clubmans, Classic Clubmans
Size | Construction | Pattern | Permitted Rim Width | Optimum Rim Width | Diameter | | Overall Width | | Tread Width | | Revs Per Mile |
| | | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
170/510-13 | Clubmans | slick | 7.0 - 9.0 | 8 | 516 | 20.3 | 222 | 8.7 | 165 | 6.5 | 992 |
170/510-13 | Clubmans | wet | 7.0 - 9.1 | 8 | 516 | 20.3 | 222 | 8.7 | 165 | 6.5 | 992 |
210/570-13 | Clubmans | slick | 7.0 - 11.0 | 10 | 564 | 22.2 | 283 | 11.1 | 210 | 8.3 | 908 |
210/570-13 | Â Clubmans | wet | Â 7.0 - 11.0 | 10 | 564Â | Â 22.2 | Â 283 | Â 11.1 | Â 210 | Â 8.3 | Â 908 |
TVR Challenge
Size | Construction | Pattern | Permitted Rim Width | Optimum Rim Width | Diameter | | Overall Width | | Tread Width | | Revs Per Mile |
| | | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
300/650R18 | | | Â 11.5 - 12.5 | Â 12.0 | Â 645 | Â 25.4 | Â 320 | Â 12.6 | Â 301 | Â 11.9 | Â 818 |
F3/Supersport Class A/Radical Endurance
Size | Construction | Pattern | Permitted Rim Width | Optimum Rim Width | Diameter | | Overall Width | | Tread Width | | Revs Per Mile |
| | | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
190/535R13 | S015/S15W | slick/wet | 7.5 - 9.5 | 8 | 541 | 21.3 | 221 | 8.7 | 190 | 7.4 | 946 |
230/570R13 | S15/S04W | slick/wet | 9.5 - 10.5 | 10 | 575 | 22.6 | 280 | 11.2 | 235 | 9.2 | 890 |
Mini 7/Miglia
Size | Pattern | Permitted
Rim Width | Optimum
Rim Width | Diameter | Overall Width | Tread Width | Revs Per Mile |
| | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
500L 10 | CR70/CR65 | 3.5 - 5.5 | 4.5 | 498 | 19.6 | 165 | 6.5 | 120 | 4.7 | 1029 |
160/490-10 | slick/wet | 5.0 - 7.0 | 6 | 480 | 18.9 | 214 | 8.4 | 150 | 5.9 | 1067 |
Historic Formula Ford
Size | Pattern | Permitted
Rim Width | Optimum
Rim Width | Diameter | Overall Width | Tread Width | Revs Per Mile |
| | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
135/545-13 | CR82 | 5.0 - 6.0 | 5.5 | 550 | 21.7 | 190 | 7.5 | 135 | 5.3 | 935 |
165/580-13 | CR82 | 5.0 - 6.0 | 5.5 | 585 | 23 | 220 | 8.3 | 165 | 6.5 | 883 |
Group C
Size | Construction | Pattern | Permitted Rim Width | Optimum Rim Width | Diameter | | Overall Width | | Tread Width | | Revs Per Mile |
| | | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
290/645R17 | | slick/wet | 12.0 - 13.0 | 12 | 642 | 25.3 | 328 | 12.9 | Â 286 | Â 11.3 | Â 794 |
340/660R18 | | slick/wet | 13.0 - 14.0 | 13.5 | 656 | 25.9 | 355 | Â 14.0 | Â 324 | Â 12.8 | Â 781 |
VAG GTi
Size | Construction | Pattern | Permitted Rim Width | Optimum Rim Width | Diameter | | Overall Width | | Tread Width | | Revs Per Mile |
| | | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
195/50R15 82V | | Â DZ03G | Â 5.5 - 7.0 | Â 6 | Â 575 | Â 22.6 | Â 202 | Â 8 | | | |
VAG Trophy
Size | Construction | Pattern | Permitted Rim Width | Optimum Rim Width | Diameter | | Overall Width | | Tread Width | | Revs Per Mile |
| | | inch | inch | mm | inch | mm | inch | mm | inch | @100 mph |
225/45R17 90W | | Â DZ03G | Â 7.0 - 8.5 | Â 7.5 | Â 632 | Â 24.9 | Â 230 | Â 9.1 | | | |
235/610R17 | G84D/G84W | Â slick./wet | Â 8.5 - 9.5 | Â 9 | Â 608 | Â 23.9 | Â 245 | Â 9.7 | Â 228 | Â 8.9 | Â 855 |
235/640R18 | | | Â F 8.5 - 10.0 | Â 9 | Â 640 | Â 25.2 | Â 248 | Â 9.8 | Â 228 | Â 9 | |