Here’s a breakdown of the information we can glean from the code for this DRC Truck Tire:

• Brand: DRC Tires
• Type: Truck Tire (specific purpose undetermined without more details)
• Size:
  • Width: 12 inches (assuming the number before “R” represents the width)
  • Aspect Ratio: Information not available from the code (needed to calculate the sidewall height as a percentage of the width)
  • Rim Diameter: 22.5 inches
  • Radial Construction (indicated by the “R”)
• Ply Rating: 18PR – This indicates a high ply rating, signifying the tire can handle heavy loads.
• Speed Rating: F – This is a speed rating for commercial tires, but the exact speed limit may vary depending on the manufacturer. It’s generally lower than ratings like M (81 mph) and should be confirmed with DRC or a retailer.

Things to Consider:

• The aspect ratio cannot be determined from the given code (12R22.5/18PR/F).
• Without knowledge of the model name or pattern, it’s difficult to pinpoint the exact use of this tire (steer, drive, trailer).
• Although some retailers suggest the D821 pattern for this code, consulting a tire professional is always recommended for the most accurate information.