Motorcycle tires conversion charts

Tire Conversion Charts

Finding your way around the different motorcycle tires conversion charts is no easy task, but if you want to shop around it is important you know what the conversions between different tires are. Thats why I put together these motorcycle tire conversion charts to make it as easy and as painless as possible.

There are a number of manufacturers sites which have similar information, but this is as complete as I could get it.

Motorcycle Street Tire Size Conversion Chart
Front Tires
Metric	Alpha	Inch
80/90	MH	2.50/2.75
90/90	MJ90	2.75/3.00
100/90	MM90	3.25/3.50
110/90	MN90	3.75/4.00
120/80	N/A	4.25/4.50
120/90	MR90	4.25/4.50
130/90	MT90	5.00/5.10
Rear Tires
Metric	Alpha	Inch
110/90	MP85	4.50/4.75
120/90	MR90	4.50/4.75
130/80	N/A	5.00/5.10
130/90	MT90	5.00/5.10
140/80	N/A	5.50/6.00
140/90	MU90	5.50/6.00
150/80	MV85	6.00/6.25
150/90	MV85	6.00/6.25
N/A
Motorcycle Off-Road Tire Size Conversion Chart
Front Tires
Metric	Alpha	Inch
60/100	90/80	2.50/2.75
70/100	90/90	2.75/3.00
80/100	100/80	3.00/3.25
Rear Tires
Metric	Alpha	Inch
80/100	80/90	2.50/3.60
90/100	110/90	3.60/4.10
100/100	120/80	4.00/4.10
110/100	130/80	4.00/4.50
120/100	140/80	5.00/5.10

Size Types

Motorcycle Speed Ratings


Speed Symbol	Max Speed	Speed Symbol	Max Speed	Speed Symbol	Max Speed
J	62 mph	K	68 mph	L	75 mph
M	81 mph	N	87 mph	P	93 mph
Q	99 mph	R	106 mph	S	112 mph
T	118 mph	U	124 mph	H	130 mph
V	149 mph	W	168 mph	Y	186 mph

Load Indexes (L.I.)


L.I.	lbs.	L.I.	lbs.	L.I.	lbs.
33	254	49	408	65	639
34	260	50	419	66	661
36	276	52	441	68	694
37	282	53	454	69	716
38	291	54	467	70	739
39	300	55	481	71	761
40	309	56	494	72	783
41	320	57	507	73	805
42	331	58	520	74	827
43	342	59	536	75	853
44	353	60	551	76	882
45	364	61	567	77	908
46	375	62	584	78	937
47	386	63	600	79	963
48	397	64	617	80	992

Well there you go, everything you need to know about motorcycle tires conversion charts in one easy lesson. Make the most of it!

return from motorcycle tires conversion charts to Motorcycle Parts, Accessories and More