Conversion Table : Star Mark to Ply Rating

• Loader

  Tire Size	Star Mark*	Ply Rating
  17.5R25		UP TO 16 PR
  20.5R25		UP TO 20 PR
  23.5R25		UP TO 24 PR
  26.5R25		UP TO 26 PR
  29.5R25		UP TO 28 PR
  1800R25		UP TO 36 PR

• Earthmover

  Tire Size	Star Mark*	Ply Rating
  17.5R25		UP TO 22 PR
  20.5R25		UP TO 28 PR
  23.5R25		UP TO 32 PR
  26.5R25		UP TO 36 PR
  29.5R25		UP TO 40 PR
  14.00R25		UP TO 32 PR
  16.00R25		UP TO 32 PR
  18.00R33		UP TO 36 PR
  24.00R35		UP TO 48 PR
  27.00R49		UP TO 56 PR
  33.00R51		UP TO 66 PR

• Grader

  Tire Size	Star Mark*	Ply Rating
  14.00R24		UP TO 16 PR

*Star Mark: The load capacity of a tire is indicated by the Star Mark in case of radial tire.