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Information about tyres for 50cc motorcycles, scooters, 125cm3 motorcycles and mopeds

Discover on the tables below all the information concerning motorcycle, scooter and moped tyres. You will find the equivalence inches / millimeters as well as the load index and the speed index.

In the example above: 110 / 80-18 62 P Here are the numbers:

110 / 80 = dimensions in millimeters (110 = tire width / 80 = tire height / width ratio)

18 = rim dimension in inches

62 = load index

P = speed index

the sizes given below are for all tyre brands (Michelin , Mitas, Hutchinson, Continental ...) and all types (enduro, supermotard, cross).

EQUIVALENCE FOR SCOOTER TYRES

Dimensions in mm

Dimensions in inches

80 / 80

80 / 90

90 / 90

100 / 90

110 / 90

120 / 80

120 / 90

130 / 80

130 / 90

140 / 80

140 / 90

2,75

2,75 - 3,00

3,00 - 3,25 - 3,60

3,50 - 4,10

4,00 - 4,10 - 4,60

4,25 - 4,50 - 4,60

4,25 - 4,50

4,50 - 4,60 - 5,10

4,50 - 5,10 - 5,50

5,10 - 5,50

Scroll right to left to learn more â†”

EQUIVALENCE FOR MOTORCYCLE TYRES
	INCHES		MILLIMETERS
		Low series	80 series	90 series
16 "	3,25-16 3,50-16 5,00-16 5,00-16 5,50-16	4,60-16 5,10-16	110 / 80-16 120 / 80-16 150 / 80-16 150 / 80-16	100 / 90-16 100 / 90-16 120 / 90-16 130 / 90-16 140 / 90-16
17 "	2,50-17 2,50-17 2,75-17 2,75-17 4,25-17 4,25-17 4,50-17 4,50-17	3,10-17 3,10-17 5,10-17	130 / 80-17 140 / 80-17 130 / 80-17 140 / 80-17 130 / 80-17 140 / 80-17 130 / 80-17 140 / 80-17	80 / 90-17 80 / 90-17 80 / 90-17 80 / 90-17 120 / 90-17 120 / 90-17 130 / 90-17 130 / 90-17
18 "	2,75-18 3,00-18 3,25-18 3,50-18 3,75-18 4,00-18 4,10-18 4,25-18	3,10-18 3,10-18 3,60-18 4,10-18 4,10-18 4,25-18 4,60-18	- - 100 / 80-18 110 / 80-18 110 / 80-18 120 / 80-18 130 / 80-18 140 / 80-18	80 / 90-18 80 / 90-18 90 / 90-18 100 / 90-18 100 / 90-18 110 / 90-18 120 / 90-18 130 / 90-18
19 "	3,00 - 19 3,25 - 19 3,50 - 19 3,50 - 19	4,10 - 19		90 / 90-19 90 / 90-19 100 / 90-19 110 / 90-19
21 "	2,75 - 21 3,00 - 21			80 / 90 - 21 90 / 90 - 21

LOAD INDEX
Index	Kg	Index	Kg	Index	Kg
0	45	40	140	80	450
1	46,2	41	145	81	462
2	47,5	42	150	82	475
3	48,7	43	155	83	487
4	50	44	160	84	500
5	51,5	45	165	85	515
6	53	46	170	86	530
7	54,5	47	175	87	545
8	56	48	180	88	560
9	58	49	185	89	580
10	60	50	190	90	600
11	61,5	51	195	91	615
12	63	52	200	92	630
13	65	53	206	93	650
14	67	54	212	94	670
15	69	55	218	95	690
16	71	56	224	96	710
17	73	57	230	97	730
18	75	58	236	98	750
19	77,5	59	243	99	775
20	80	60	250	100	800
21	82,5	61	257	101	825
22	85	62	265	102	850
23	87,5	63	272	103	875
24	90	64	280	104	900
25	92,5	65	290	105	925
26	95	66	300	106	950
27	97,5	67	307	107	975
28	100	68	315	108	1000
29	103	69	325	109	1030
30	106	70	335	110	1060
31	109	71	345	111	1090
32	112	72	355	112	1120
33	115	73	365	113	1150
34	118	74	375	114	1180
35	121	75	387	115	1215
36	125	76	400	116	1250
37	128	77	412	117	1285
38	132	78	425	118	1320
39	136	79	437	119	1360