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The tire load index chart is a standardized table that matches a tire’s load index number to its specific weight-carrying capacity. For instance, a load index of 91 might correspond to a maximum weight of 615 kg.
Use the tire load index chart to see how much weight your tire can support & learn how to calculate your car's max load carrying capacity, from Tires Plus!
Trailer Tire Load Range Table. There are two factors you should consider when choosing a trailer tire: load range and load index. Load range describes a tire's toughness and load index describes a tire's carrying capacity (the max load). You can find both of these numbers on your tire's sidewall.
The load index number indicates a tire’s carrying capacity when inflated to maximum load sustaining pressure. It further explains the tire load range measurement by adding more specifics to the rating. Find your tire’s load-bearing capacity by checking our load index chart below.
The load range of a tire refers to the maximum weight the tire can support at a specified air pressure. This rating is essential because it determines how much weight each tire on your trailer can handle. Choosing a tire with the correct load range for your Air-tow trailer is vital to prevent overloading, which can lead to premature wear, tire blowouts, and unsafe towing conditions.
While you’re probably unlikely to approach the top speed rating of your tires, pushing load index ratings is more common, especially when it comes to hauling and towing with trucks and SUVs. Use the chart below to understand the weight limitations of your vehicle’s tires.
The load range for your trailer tires will be stamped into the sidewall along with the maximum allowable load (usually in pounds and kilograms) for both single-tire axles (one tire per side of the axle) and double/dual-tire axles (two tires at each end/side of the axle).
Selecting the right load rating for your trailer tires requires precision, understanding, and a bit of research. Here’s a detailed breakdown: 1. Calculate the Gross Trailer Weight (GTW): Dry Weight: Start by finding out the ‘Dry Weight’ or ‘Unloaded Vehicle Weight (UVW)’ of your trailer.
How to Use the Tire Load Index Chart. The first step to understanding the load index is to understand the information on a tire’s sidewall. The number just before the letter at the very end indicates the tire load index. It usually looks something like this: 235/55R18 90H.
When determining the correct tire for your RV, it is important to consider the load and speed index that is listed on the tire's sidewall. To avoid tire issues, it is important to follow these indexes, such as not loading your RV beyond the maximum weight or driving faster than the maximum speed rating.