Load Range G is a tire’s load-carrying class. It signals a heavy-duty construction designed to carry more weight than lower ranges.

• Commonly shown as a 14-ply rating on listings.
• Appears on many trailer (ST) and commercial sizes on this page.
• Actual maximum load and cold inflation pressure are printed on the tire’s sidewall.
• Match the load range to your trailer or vehicle manufacturer’s recommendations and axle ratings.
• Also review size, load index (e.g., 123/119), and speed rating (e.g., L, M, N) to confirm overall fit.

When in doubt, check your owner’s manual or consult a tire professional.

G-rated (Load Range G) tires are built for heavier jobs where extra carrying capacity matters.

• Trailer use: cargo, camper/RV, horse, utility, boat, and equipment trailers in popular ST sizes like 225/75R15 and 235/85R16.
• Commercial applications: select 19.5" and 22.5" sizes for medium-duty truck positions.
• They can help support higher tongue or axle weights when specified by the manufacturer.
• Choose the load range that meets your trailer’s Gross Axle Weight Rating (GAWR) and wheel limits.

Always verify the service type (ST for trailers), size, load index, and speed rating on the product page and on your current tires.

Both are heavy-duty classes, but the lettering increases with capacity. Load Range H is a step above G, indicating a higher potential load capacity at its specified pressure.

• G is commonly a 14-ply rating; H is a higher class.
• Moving to a different load range may require compatible wheels and valve stems rated for the pressure and load involved.
• Avoid mixing load ranges on the same axle to help maintain even load sharing.
• Follow your trailer or vehicle manufacturer’s specifications for size and load range.

If you need more capacity than G, confirm H is approved for your setup before purchasing.

Yes, you’ll find multiple ST225/75R15 trailer tires in Load Range G on this page.

• They’re a common heavy-duty option for trailers that require higher carrying capacity.
• Confirm your wheel diameter is 15" and that the tire is the correct service type (ST) for trailer use.
• Compare the listed load index (e.g., 123/119) and speed rating letters (e.g., M) to your needs.
• Check your owner’s manual for the recommended load range and cold inflation guidance.

Specs can vary by model, so review the product details and your existing tire sidewalls before ordering.

Those markings are part of the tire’s service description.

• Load index (e.g., 123/119) indicates the tire’s load capacity in single/dual positions. Higher numbers correspond to higher capacities.
• The speed rating letter (e.g., L, M, N) identifies the maximum speed capability under specified load conditions.
• Use the lowest rating in your setup as your guide (tire, wheel, or trailer), and follow manufacturer recommendations.
• Match these markings across all tires on the same axle for consistent performance.

You can find the exact values on the tire sidewall and in the product specifications on this page.