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Single Marque

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	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

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	Clubmans	wet	7.0 - 11.0	10	564	22.2	283	11.1	210	8.3	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			11.5 - 12.5	12.0	645	25.4	320	12.6	301	11.9	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

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

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	286	11.3	794
340/660R18		slick/wet	13.0 - 14.0	13.5	656	25.9	355	14.0	324	12.8	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		DZ03G	5.5 - 7.0	6	575	22.6	202	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		DZ03G	7.0 - 8.5	7.5	632	24.9	230	9.1
235/610R17	G84D/G84W	slick./wet	8.5 - 9.5	9	608	23.9	245	9.7	228	8.9	855
235/640R18			F 8.5 - 10.0	9	640	25.2	248	9.8	228	9