225
/
40
Z
R
18
92
W
Nominal Section Width in Millimeters
Nominal Aspect Ratio as a Percentage
Initial Z means speed capacity ≥
240Kph Radial Construction Nominal Rim Diameter in
Inches Load Index Speed Symbol overall width section height (H) rim
diameter overall
diameter
240Kph Radial Construction Nominal Rim Diameter in
Inches Load Index Speed Symbol overall width section height (H) rim
diameter overall
diameter
Aspect ratio(%) = Seciton Height Seciton Width X 100