SP163 (Highway)
  Tyre Size Designation Service Description Section Width (mm)
on Design Rim		 Overall Diameter (mm) Static Loaded Radius (mm)
(+/- 2.0mm)		 Approved Rim Width Max Load (kg) Product Code
15 18'' 8.25R15 18PR 143/141J  -  -  -  -  - 554826