How to read a Tyre

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1

REAR

Front or Rear and direction of rotation

2

BRIDGESTONE

Manufacturer name

Tyre Diagram
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3

BATTLAX BT-023

Tyre Name

4

190/50 ZR 17

Tyre Dimensions

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5

M/C 73W

Load Index & Speed Symbol

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Tyre Dimensions

This is the size of your tyre

190 is the width in millimeters

50 is the aspect ration.
indicates the sidewall is 50% of the width of the trye..50% of 190mm

ZR indicates the tyre is speed rated to over 150mph and the R indicates the tyre is of radial contruction

17 indicates the bead diameter is 17" meaning its designed to fit 17" wheels of the correct width.

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Load index & Speed Symbol

M/C indicates the tyre is for motorcycles only

73 Load Index W Speed index

If this appears on a tyre then it will appear in one of two ways:

73W without brackets indicates the tyre has a maximum speed of 168mph
W with a maximum load of 73 (365kgs)

(73W) in brackets indicates the tyre is capable of speeds over 168mph

Rating F J L M P R S H V Z W (W)
MPH 50 62 75 81 93 106 112 130 150 150+ 167 167+
KM/H 80 100 120 130 150 170 180 210 240 240+ 270 270+