PROLOGUE WEC 2019BARCELONA 23-24 JULYPhoto Clement MARIN

TYRE DIMENSIONS

TYRE DIMENSIONS

TYRE DIMENSIONS

TYRE DIMENSIONS

GT

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width
		inch	inch	mm	inch	mm	inch	mm	inch
235/640R18	slick/wet	F 8.5-10	9	640	25.2	248	9.8	228	9
245/650R18	slick/wet	8.5-9.5	9	648	25.5	268	10.5	246	9.6
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	13.1	290	11
310/710R18	slick/wet	R 12.5-13	13	711	28	354	13.9	305	12
235/645R19	slick/wet	8.0-9.5	8	645	25.5	231	9.1	216	8.5
285/680R19	slick/wet	10.5-11	10.5	680	26.8	293	11.5	270	10.6
310/710R19	slick/wet	R 12.5-13	13	711	28	354	13.9	305	12

Single Seater

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
190/535R13	slick/wet	7.5-9.5	8	541	21.3	221	8.7	190	7.4	946
205/570R13	slick/wet	8.0-9.5	9	574	22.6	255	10	205	8.1	892
230/570R13	slick/wet	9.5-10.5	10	575	22.6	280	11.2	235	9.2	890

BTCC

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width
		inch	inch	mm	inch	mm	inch	mm	inch
265/660R18	slick/wet	10 – 11	10	655	25.9	278	10.9	252	9.9

Saloon

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
235/620R17	slick/wet	8.5-9.5	9	620	24.4	248	9.8	235	9.3	826
245/650R18	slick/wet	8.5-9.5	9	648	25.5	268	10.5	246	9.6	790

Single Marque

Mini 7/Mini 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

Formula Vee

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
120/590-15	CR82	4.0 - 5.5	4.5	579	22.8	161	6.3	120	4.7	884
135/620-15	CR82	4.0 - 6.0	4.5	617	24.3	190	7.5	138	5.4	830

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

MG Trophy

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
205/50R16 87V	DZ03G	5.5 - 7.5	6.5	609	24	217	8.5
205/620 R17	slick/wet	7.0 - 9.0	7.5	616	24.3	215	8.5	203	8	822

Britcar

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	9	640	25.2	248	9.8	228	9	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

Mini Challenge

JCW

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
235/610R17	slick/wet	8.5-9.5	9	608	23.9	245	9.7	226	8.9	855

Cooper Pro

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
185/580R15	slick/wet	6.5-7.5	7	583	23	205	8.1	185	7.3	878

Sportscar

Radical

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

Revolution Sportscar

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
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

LMP

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
305/660R18	slick/wet	11.5-12.5	12.5	656	25.8	332	13	290	11.4
Goodyear 25.5 x 12.0-18	slick - G19		13	650	25.6	343	13.5	311	12.3
Goodyear 25.5 x 12.5-18	slick - G19		13.5	650	25.6	362	14.3	324	12.8
Goodyear 28.5 x 14.5-18	slick - G19		14.5	724	28.5	406	16	368	14.5

Dunlop Saloon Car Cup

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
160/535R13	slick/wet	6.0-8.0	6.5	537	21.1	189	7.4	160	6.3	826
170/575R13	slick/wet	5.5-7.0	5.5	571	22.5	209	8.2	170	6.7	882
185/580R15	slick/wet	6.5-7.5	7	583	23	205	8.1	185	7.3	878
190/535R13	slick/wet	7.5-9.5	8	541	21.3	221	8.7	190	7.4	946
200/580R15	slick/wet	6.5-8.5	7.5	583	23	216	8.5	195	7.7	878
212/650R19	slick/wet	7.5-8.5	8.2	646	25.4	227	8.9	210	8.3
205/570R13	slick/wet	8.0-9.5	9	574	22.6	255	10	205	8.1	892
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	7.0-8.0	7	624	24.6	218	8.6
230/570R13	slick/wet	9.5-10.5	10	575	22.6	280	11.2	235	9.2	890
235/610R17	slick/wet	8.5-9.5	9	608	23.9	245	9.7	226	8.9	855
235/620R17	slick/wet	8.5-9.5	9	620	24.4	248	9.8	235	9.3	826
235/640R18	slick/wet	8.5-10	9	640	25.2	248	9.8	228	9
245/650R18	slick/wet	8.5-9.5	9	648	25.5	268	10.5	246	9.6	790
265/605R16	slick/wet	9.5-10.5	10	608	23.9	270	10.6	260	10.2	842
265/660R18	slick/wet	10-11	10	655	25.9	278	10.9	252	9.9
285/660R18	slick/wet	10.5-11.5	11	655	25.8	301	11.9	277	10.9
285/680R18	slick/wet	10.5-11	11	679	26.7	302	11.9	270	10.6
290/645R17	slick/wet	12-13	12	642	25.3	328	12.9	286	11.3	794
305/660R18	slick/wet	11.5-12.5	12.5	656	25.8	332	13	290	11.4
305/680R18	slick/wet	11.5-12.5	12	685	27	333	13.1	290	11
310/710R18	slick/wet	12.5-13	13	711	28	354	13.9	305	12

Dunlop L Section, M Section, Post Historic & Vintage

Dunlop L Section (metal locking valve race tubes available)

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
500 L10	CR65	3.5 - 5.5	4.5	498	19.6	165	6.5	120	4.7	1029
450 L12	CR65	4.0 - 7.0	5	540	21.3	175	6.9	118	4.7	968
450 L13	CR65	3.5 - 7.0	5	560	22.1	167	6.6	115	4.5	915
550 L13	CR65	4.0 - 7.0	5.5	608	23.9	199	7.8	128	5	844
550 L14	CR65	4.0 - 6.5	5.5	631	24.8	198	7.8	128	5	812
450 L15	CR48 (R6)	3.5 - 6.0	5	609	24	156	6.1	102	4	841
500 L15	CR65	4.0 - 7.0	6	631	24.8	187	7.4	120	4.7	812
550 L15	CR65	4.0 - 7.0	6.5	659	25.9	204	8	128	5	777
600 L15	CR65	5.0 - 7.5	7	684	26.9	224	8.8	135	5.3	749
650 L15	CR65	5.5 - 8.0	7.5	706	27.8	239	9.4	142	5.6	726
700 L15	CR65	6.5 - 9.0	8.5	706	27.8	265	10.4	167	6.6	726
600 L16	CR48 (R6)	5.0 - 7.0	6	708	27.8	201	7.9	122	4.8	724
650 L16	CR48(R6)	5.5 - 7.5	7	729	28.7	227	8.9	130	5.1	703

Dunlop M Section (all tubeless)

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
450 M13	CR65	4.0 - 7.5	5.5	552	21.7	172	6.7	124	4.9	928
525 M13	CR65	5.0 - 8.0	5.5	590	23.2	210	8.3	148	5.8	868
550 M13	CR65	6.0 - 9.0	8	602	23.7	251	9.9	175	6.9	851
550 M14	CR65	5.5 - 8.0	7	635	25	228	9	150	5.9	805
500 M15	CR65	5.5 - 8.0	7.5	648	25.5	221	8.7	152	6	791
550 M15	CR65	6.0 - 8.5	8	660	26	241	9.5	165	6.5	776
600 M15	CR65	7.0 - 9.0	8.5	686	27	271	10.7	178	7	747
650 M15	CR65	7.5 - 10.0	9	711	28	295	11.6	203	8	720

Dunlop Post Historic (all tubeless)

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
175/550-13	CR65	5.5 - 8.0	8	555	21.9	231	9.1	172	6.8	923
475/1000-13	CR65	5.5 - 8.5	8	593	23.3	239	9.4	181	7.1	864
475/1150-13	CR65	7.0 - 10.0	9	578	22.8	274	10.8	211	8.3	886
600/1200-13	CR65	9.0 - 11.0	10	640	25.2	312	12.3	239	9.4	800
600/1350-13	CR65	11.0 - 14.0	12	635	25	351	13.8	274	10.8	807
240/525-13	CR65	10.0 - 12.0	11	531	20.9	274	10.8	234	9.2	967
305/600-13	CR65	12.5 - 14.0	13.5	607	23.9	402	15.8	305	12	845
475/1000-15	CR65	6.0 - 9.0	8	627	24.7	249	9.8	181	7.1	817
430/1160-15	CR82	7.5 - 11.0	9.5	622	23.7	287	11.3	231	9.1	824
525/1050-15	CR65	7.5 - 10.0	8.5	652	25.7	266	10.5	207	8	786
530/1360-15	CR82	12.0 - 13.0	12	653	25.7	345	13.6	284	11.2	784
530/1500-15	CR82	14.0 - 15.5	15	648	25.5	406	16	320	12.6	791
530/1600-15	CR82	16.0 - 17.0	17	648	25.5	445	17.5	364	14.3	791

Dunlop Vintage

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width		Tread Width		Revs Per Mile
		inch	inch	mm	inch	mm	inch	mm	inch	@100mph
450-15	R5	3.0 - 4.5	4	610	24	142	5.6	90	3.5	840
500-15	R5	3.0 - 5.0	4.5	630	24.8	173	6.8	96	3.8	824
550-15	R5	3.5 - 5.5	5	655	25.8	180	7.1	107	4.2	768
600-15	R5	4.0 - 6.0	5.5	676	26.6	197	7.7	116	4.6	755
650-15	R5	4.5 - 6.5	6	696	27.4	214	8.4	124	4.9	746
*550-16	R5	4.5 - 6.0	5.5	688	27.1	178	7	106	4.2	745
*600-16	R5	4.5 - 6.0	5.5	708	27.9	198	7.8	121	4.8	723
*650-16	R5	4.5 - 6.5	6	735	28.9	201	8.3	122	4.8	698
550-17	R5	4.0 - 6.0	4	718	28.1	165	6.5	97	3.8	718
*700-17	R5	5.0 - 7.0	6	767	30.2	210	8.3	114	4.5	668
*550/600-18	R1	4.0 - 6.5	4.5	765	30.1	175	6.9	109	4.3	670
*700-18	R1	5.0 - 7.0	5	815	32.1	224	8.8	137	5.4	629
*500-19	5 STUD	3.0 - 5.0	4	753	29.6	157	6.2	93	3.7	680
*600-19	5 STUD	4.0 - 6.0	4.5	787	31	175	6.9	109	4.3	651
*700-19	R1	4.5 - 6.5	5	837	32.9	224	8.9	130	5.1	612

* Denotes these tyres are Road Legal

DZ03G

Size	Pattern	Permitted Rim Width	Optimum Rim Width	Diameter		Overall Width
		inch	inch	mm	inch	mm	inch
195/60R14 86H	DZ03G	5.5 - 7.0	6	588	23.1	206	8.1
185/55R14 79V	DZ03G	5.0 - 6.5	6	558	22	197	7.8
195/50R15 82V	DZ03G	5.5 - 7.0	6	575	22.6	202	8
205/50R15 85V	DZ03G	5.5 - 7.5	6.5	583	23	216	8.5
215/50R15 88V	DZ03G	7.0 - 8.0	7	595	23.4	231	9.1
205/50R16 87V	DZ03G	5.5 - 7.5	6.5	609	24	217	8.5
225/45R16 89W	DZ03G	7.0 - 8.5	7.5	607	23.9	228	9
215/45R17 87W	DZ03G	7.0 - 8.0	7	624	24.6	218	8.6
225/45R17 90W	DZ03G	7.0 - 8.5	7.5	632	24.9	230	9.1
235/45R17 93W	DZ03G	7.5 - 9.0	8	642	25.3	238	9.4
255/40R17 94W	DZ03G	8.5 - 10.0	9	635	25	264	10.4
225/40R18 92Y	DZ03G	7.5 - 9.0	8	634	25	235	9.3
235/40R18 91W	DZ03G	8.0 - 9.5	8.5	642	25.3	248	9.8
245/40R18 93W	DZ03G	8.0 -9.5	8.5	650	25.6	253	10
265/35R18 93W	DZ03G	9.0 - 10.5	9.5	642	25.3	279	11
295/30R18 98Y	DZ03G	10.0 -11.0	10.5	634	25	299	11.8

Goodyear Historic Radial, Prototype, Formula & Bias

Goodyear Historic Radial

Size	Pattern	Optimum Rim Width	Diameter		Overall Width		Tread Width
		inch	mm	inch	mm	inch	mm	inch
23.0 x 13.0-13	Slick	14	584	22.99	409	16.10	312	12.28
23.5 x 10.5-16	Slick	10	597	23.50	284	11.18	269	10.59
25.5 x 12.0-16	Slick	12	648	25.51	343	13.50	310	12.20
25.5 x 14.0-16	Slick	14	645	25.39	386	15.19	356	14.01
28.5 x 14.5-16	Slick	13	724	28.50	391	15.39	376	14.80

Goodyear Historic Formula

Size	Pattern	Optimum Rim Width	Diameter		Overall Width		Tread Width
		inch	mm	inch	mm	inch	mm	inch
20.0 x 6.5-13	Rain	6.0-8.0	533	20.98	196	7.72	150	5.91
20.0 x 7.0-13	Slick	7	518	20.39	201	7.91	175	6.88
20.0 x 7.0-13	Slick	6.0-8.0	521	20.51	229	9.02	183	7.20
21.0 x 8.0-13	Slick	9	546	21.49	254	10	216	8.50
20.0 x 9.5-13	Slick	10	516	20.31	277	10.90	231	9.09
20.5 x 7.5-13	Rain	6.0-7.0	526	20.71	208	8.19	168	6.61
22.0 x 9.0-13	Slick	8.0-10.0	572	22.51	287	11.29	234	9.21
22.5 x 9.0-13	Rain	8.0-10.0	569	22.40	282	11.10	224	8.82
22.0 x 11.0-13	Slick	11	577	22.71	318	12.51	273	10.74
23.0 x 13.0-13	Slick	14	584	22.99	409	16.10	312	12.28

Goodyear Historic Prototype

Size	Pattern	Optimum Rim Width	Diameter		Overall Width		Tread Width
		inch	mm	inch	mm	inch	mm	inch
25.5 x 12.0-18	Slick	13	650.24	25.6	343	13.50	311	12.24
25.5 x 12.5-18	Slick	13.5	650.24	25.6	362	14.25	324	12.75
28.0 x 12.5-18	Slick	13	711.2	28	343	13.50	318	12.51
28.5 x 14.5-18	Slick	14.5	723.9	28.5	406	15.98	368	14.48

Goodyear Historic Bias

Size	Pattern	Optimum Rim Width	Diameter		Overall Width		Tread Width
		inch	mm	inch	mm	inch	mm	inch
20.0 x 8.0-13	Slick	6	513	20.19	236	9.29	208	8.18
23.0 x 9.0-15	Slick	7	584	22.99	264	10.39	236	9.29
23.0 x 10.5-15	Slick	10	594	23.38	300	11.81	264	10.39
26.5 x 8.0-15	Slick	8	673	26.49	279	10.98	201	7.91
26.5 x 10.0-15	Slick	10	686	27.00	328	12.91	259	10.19
27.0 x 14.0-15	Slick	17	686	27.00	470	18.50	376	14.06
23.5 x 10.5-16	Slick	11	592	23.30	300	11.81	257	10.11
25.0 x 13.0-16	Slick	12	622	24.48	348	13.70	315	12.40
27.0 x 14.0-16	Slick	14	676	26.61	406	15.98	348	13.70
500-15 Blue Streak	Slick	5	622	24.48	194	7.63	143	5.62
600-15 Blue Streak	Slick	8	648	25.51	269	10.59	213	8.38
700-15 Blue Streak	Slick	9	681	26.81	305	12.00	221	8.70
800-15 Blue Streak	Slick	10	681	26.81	333	13.11	257	10.11

Goodyear Racing Formula-Radial

Size	Pattern	Optimum Rim Width	Diameter		Overall Width		Tread Width
		inch	mm	inch	mm	inch	mm	inch
21.5 x 8.0-13	Slick	9	549	21.61	249	9.80	208	8.19
21.5 x 8.0-13 Rain	Rain	9	549	21.61	249	9.80	208	8.19
22.5 x 11.0-13	Slick	11	574	22.60	310	12.20	269	10.59
22.5 x 11.0-13 Rain	Rain	11	574	22.60	310	12.20	269	10.59