Specifications

• Tire Size: 8.25-16
  • 8.25: The nominal section width of the tire in inches.
  • - (hyphen): Indicates a bias ply (diagonal ply) construction tire (a radial tire would have an "R").
  • 16: The nominal diameter of the wheel (rim) in inches that the tire is designed to fit.
• Tread Pattern/Model: M77-R
  • This is the manufacturer's specific model or tread pattern name, designed likely for commercial or industrial use.
• Construction/Ply Rating: N16
  • This likely indicates the Ply Rating (PR), which denotes the load-carrying capacity of the tire in terms of the strength of its carcass (e.g., "16 Ply Rating"). A higher ply rating signifies a greater load capacity.
• Load and Speed Index: 129/12K
  • This marking uses two sets of ratings, which is common for commercial tires used in both single and dual applications.
  • 129 (Load Index for Single fitment):
    • Maximum load capacity of 1850 kg (4079 lbs) per tire when used in a single application.
  • 12K (Load Index/Speed Symbol for Dual fitment):
    • The number part '12' seems atypical for standard dual load index markings. It's more likely interpreted as a single combined Load Index of 129 and a Speed Symbol K.
    • K (Speed Symbol): Indicates the maximum speed at which the tire can carry its maximum load capacity (1850 kg).
    • Maximum speed: 110 km/h (68 mph).