The 325/60R20 tire measures 35.4 inches (898 mm) in diameter and 12.8 inches (325 mm) in width, designed to mount on a 20-inch (508 mm) rim. Its 7.7-inch (195 mm) sidewall height contributes to smoother handling and better impact absorption, while the tire’s 111.2-inch (2819.7 mm) circumference produces roughly 570 revolutions per mile (355 per km).
This size is a go-to option for SUV and truck owners who value ground clearance, stability, and rugged performance.
If you’d like to learn more, we’ve put together a detailed article that explains tire sizes in depth
Key Tire Dimensions of the 325/60R20
The 325/60R20 tire is designed to provide exceptional comfort, durability, and performance, making it a top choice for larger vehicles such as trucks and SUVs. Below are the essential specifications of the tire:
| Specification | Measurement (Inches) | Measurement (Millimeters) |
| Wheel Diameter | 20 inches | 508 mm |
| Circumference | 111.2 inches | 2819.7 mm |
| Revolutions per Mile | 570 revolutions | 355 per km |
| Sidewall Height | 7.7 inches | 195 mm |
| Width | 12.8 inches | 325 mm |
| Diameter | 35.4 inches | 898 mm |
This tire size is ideal for those looking for a robust, high-performance option that balances ride comfort with superior handling and rugged durability.
Understanding the 325/60R20 Tire Size
The 325/60R20 tire size is commonly used for trucks, SUVs, and other larger vehicles. Here’s a breakdown of its components:
- 325: Represents the tire’s width in millimeters. In this case, the tire is 325 mm wide.
- 60: The aspect ratio, which is the height of the tire’s sidewall as a percentage of its width. The sidewall height is 60% of 325 mm, or 195 mm.
- R: Stands for radial construction, which is the most common construction type in modern tires.
- 20: Represents the diameter of the wheel rim that the tire fits, which is 20 inches.
In short, the 325/60R20 tire is 325 mm wide, has a sidewall height of 60% of the width, and fits on a 20-inch wheel rim.
Load Capacity and Inflation Pressure
When choosing a tire, understanding the load capacity and pressure ratings is essential.
Load Capacity
- Load Index: The load index typically ranges from 121 to 126, with a load capacity between 3,080 and 3,748 lbs per tire.
Inflation Pressure
- Recommended Inflation: The inflation pressure typically falls between 50 to 80 psi, depending on the manufacturer and tire model.
Understanding Tire Speed Ratings
The speed rating of a tire indicates the maximum speed it can safely sustain. For example:
- R-rated tires, like those in the 325/60R20 size, have a maximum safe speed of 106 mph.
Understanding the speed rating is essential to match your driving style and ensure safety. Always ensure the speed rating aligns with your vehicle’s specifications to optimize both performance and safety.
Comparing the 325/60R20 with Other Tire Sizes
The 325/60R20 tire size is often compared to other popular tire sizes. Here’s how it stacks up:
325/60R20 vs. 275/60R20
- The 325/60R20 is approximately 2.36 inches larger in diameter, offering more ground clearance for off-road situations.
325/60R20 vs. 35/12.5R20
- The 325/60R20 is slightly larger, providing a higher sidewall for improved shock absorption and handling.
Tire Types and Applications
The 325/60R20 tire comes in various tread patterns, each suited to different driving needs:
All-Terrain Tires
- Balanced Performance: Designed for those who need a balance between on-road comfort and off-road capability.
Mud-Terrain Tires
- Aggressive Tread Design: Ideal for off-roading, offering excellent traction in muddy and uneven conditions.
Highway Tires
- On-Road Comfort: These tires are optimized for comfort and fuel efficiency, perfect for long-distance highway driving.
Popular Tires in the 325/60R20 Size
Several well-known tire models are available in the 325/60R20 size. Here are some top picks:
BFGoodrich All-Terrain T/A KO2
- Durability: Known for its toughness and performance in off-road conditions.
Nitto Trail Grappler M/T
- Mud-Terrain Performance: Designed for aggressive off-roading with superior traction in challenging terrains.
Toyo Open Country A/T III
- Versatility: A great option for those who need a mix of on-road comfort and off-road capability.
Need expert tire support? Explore our tire repair page for trusted repair and maintenance services.
FAQs
Q. What vehicles are suitable for 325/60R20 tires?
The 325/60R20 tire size is ideal for large vehicles like trucks, SUVs, and off-road vehicles that require increased ground clearance and rugged performance.
Q. What is the load capacity of a 325/60R20 tire?
The load capacity typically ranges between 3,080 and 3,748 lbs per tire, depending on the tire’s load index.
Q. What is the recommended inflation pressure for 325/60R20 tires?
The recommended inflation pressure usually falls between 50 to 80 psi, depending on the manufacturer and tire model.
Q. How does the 325/60R20 compare to the 275/60R20 tire?
The 325/60R20 tire is 2.36 inches larger in diameter, offering more ground clearance, making it a better choice for off-road driving.
