Motorcycle Tire Reference

Jack Klarich

18000+ Posts
Oct 11, 2016
17,336
15,794
Jax, Fla USA
Some handy info



Tire Conversion Charts

Motorcycle Street Tire Size Conversion Chart
Front Tires
MetricAlphaInch
80/90MH2.50/2.75
90/90MJ902.75/3.00
100/90MM903.25/3.50
110/90MN903.75/4.00
120/80N/A4.25/4.50
120/90MR904.25/4.50
130/90MT905.00/5.10
Rear Tires
MetricAlphaInch
110/90MP854.50/4.75
120/90MR904.50/4.75
130/80N/A5.00/5.10
130/90MT905.00/5.10
140/80N/A5.50/6.00
140/90MU905.50/6.00
150/80MV856.00/6.25
150/90MV856.00/6.25
N/A
Motorcycle Off-Road Tire Size Conversion Chart
Front Tires
MetricAlphaInch
60/10090/802.50/2.75
70/10090/902.75/3.00
80/100100/803.00/3.25
Rear Tires
MetricAlphaInch
80/10080/902.50/3.60
90/100110/903.60/4.10
100/100120/804.00/4.10
110/100130/804.00/4.50
120/100140/805.00/5.10





Size Types

motorcycle_size_chart.gif








Motorcycle Speed Ratings

Speed SymbolMax SpeedSpeed SymbolMax SpeedSpeed SymbolMax Speed
J62 mphK68 mphL75 mph
M81 mphN87 mphP93 mph
Q99 mphR106 mphS112 mph
T118 mphU124 mphH130 mph
V149 mphW168 mphY186 mph





Load Indexes (L.I.)

L.I.lbs.L.I.lbs.L.I.lbs.
332544940865639
342605041966661
362765244168694
372825345469716
382915446770739
393005548171761
403095649472783
413205750773805
423315852074827
433425953675853
443536055176882
453646156777908
463756258478937
473866360079963
483976461780992
 

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