4 Best 40-Inch Tires 2025 in the United States

The Mickey Thompson Baja Legend MTZ LT40X13.50R17 121Q C tire stands out with its silica-reinforced tread compound, which not only enhances wet performance but also boosts longevity and resistance to cuts and chips. The Powerply 3-Ply sidewall construction adds an extra layer of protection and improves handling responsiveness, making it a good choice for off-road enthusiasts.

Its high-void tread pattern and angled shoulder scallops are designed for self-cleaning, providing additional traction on rugged terrain. The four-pitch Sidebiter pattern grips well and offers extra sidewall protection, while the variable draft angles and stone ejectors help reduce stone retention, ensuring consistent performance.

However, with a load capacity of only 3 pounds, it may not be suitable for heavier vehicles. The tire also has a 6-ply rating, which, while decent, might not be as robust as some higher-ply options available. Weighing 84 pounds, it's relatively heavy, which could impact fuel efficiency. This tire is ideal for off-road adventurers who prioritize durability, traction, and sidewall protection, but it may not be the best fit for those requiring high load capacities or seeking a lightweight option.

The Mickey Thompson Baja Boss LT40/13.50R17 121Q BSW all-season tire is a robust option for those looking for a reliable, all-season tire. One of its major strengths is the asymmetrical tread pattern, which offers good traction and stability in various driving conditions. The load rating of 3197 pounds makes it suitable for heavy-duty applications, perfect for trucks and SUVs. Additionally, the speed rating of 121Q indicates it can handle speeds up to 100 mph, which is adequate for most off-road enthusiasts. The tire's ply rating and construction type (radial) contribute to its durability and performance on rough terrains.

With a sidewall height in proportion to its section width, this tire provides a balanced performance in terms of shock absorption and handling. The tire compound is designed for year-round use, adding to its versatility. However, there are a few drawbacks. The tread depth of 7/32nds might not be as deep as some competitors, which could affect longevity in extremely rugged conditions. The tire's weight of 91.7 pounds might be a concern for some, as it could impact fuel efficiency and handling. Despite these minor issues, the tire’s performance and features make it a strong contender for those in need of a reliable, all-season, heavy-duty tire.

The Maxxis TL00015300 RAZR Mud Terrain tire is a robust choice for off-road enthusiasts seeking a 40-inch tire with a 13.5-inch width. It features a deeply sculpted tread pattern that excels in off-road conditions, maximizing traction while maintaining a quieter ride on regular roads. This makes it suitable for those who often switch between rugged terrains and smoother surfaces. The innovative armor sidewall design enhances sidewall traction and provides excellent puncture resistance, adding durability in harsh environments.

With a 12-ply rating, the tire is built to handle heavy loads, boasting a load capacity of 3195 pounds, which is ideal for large trucks and SUVs. Its non-directional tread type and significant tread depth of 19 inches further enhance its off-road performance by providing better grip and stability. However, it's important to note that this tire is not suited for winter conditions, which restricts its use to moderate climates or seasons.

Weighing 90.6 pounds, it is relatively heavy, which may affect fuel efficiency and handling. Additionally, the tire's high maximum pressure of 81 PSI ensures it can handle rigorous driving conditions but requires careful monitoring to maintain optimal performance. If you're looking for a tire that can handle tough off-road adventures while offering decent on-road comfort, the Maxxis TL00015300 RAZR Mud Terrain tire could be a great fit.