What Does LT285/70R17 Mean? Tire Size Explained

Learn the meaning behind the LT285/70R17 tire size code, including key details for light truck tires and off-road applications.

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The LT285/70R17 is a tire size specification. 'LT' stands for Light Truck, indicating it's designed for vehicles that carry heavy loads or perform off-road activities. '285' is the tire's width in millimeters from sidewall to sidewall. '70' represents the aspect ratio, meaning the height is 70% of the tire's width. 'R' signifies a radial construction, and '17' is the diameter in inches of the wheel that the tire is intended to fit. This size is commonly found in off-road and heavy-duty applications.

FAQs & Answers

  1. What does LT mean in tire sizes? LT stands for Light Truck, indicating the tire is designed for vehicles carrying heavier loads or used in off-road conditions.
  2. How do I read the numbers in a tire size like 285/70R17? The first number (285) is the tire width in millimeters, the second number (70) is the aspect ratio (height as a percentage of width), R means radial construction, and 17 is the wheel diameter in inches.
  3. Is LT285/70R17 suitable for off-road use? Yes, tires sized LT285/70R17 are commonly used in off-road and heavy-duty applications due to their design to handle heavier loads and rugged terrain.

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