Front or Rear and direction of rotation
Tyre DimensionsLearn more
Load Index & Speed SymbolLearn more
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.
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