Quick Answer

The “107T” tire marking indicates a tire with a load capacity of 2,109 pounds (960 kg) per tire and a maximum safe speed of 118 mph (190 km/h). This code helps drivers select tires that match their vehicle’s weight requirements and driving speed for optimal safety and performance.

Infobox: Tire Code “107T” Summary

ParameterValue
Load Index107
Maximum Load Capacity2,109 lbs (960 kg) per tire
Speed RatingT
Maximum Speed118 mph (190 km/h)
Common Vehicle TypesVans, trucks, passenger cars, crossovers

Overview of the “107T” Tire Marking

The alphanumeric code “107T” found on tires conveys two critical specifications: the load index and the speed rating. The load index number (107) defines the maximum weight a single tire can safely carry when inflated to the recommended pressure. Meanwhile, the letter “T” represents the tire’s speed rating, indicating the highest speed the tire can sustain without compromising safety or performance.

Understanding Load Index

The load index is a numerical code that corresponds to the tire’s maximum load-bearing capacity. For a tire marked with a load index of 107, this translates to a maximum load of 2,109 pounds (960 kilograms) per tire. This specification is especially important for vehicles that carry heavy loads, such as trucks, vans, and SUVs. Using tires with an insufficient load index can lead to dangerous situations like tire failure or loss of vehicle control under heavy weight.

Decoding Speed Rating

The speed rating, indicated by the letter “T,” defines the maximum speed at which the tire can operate safely. A “T” rating means the tire is rated for speeds up to 118 miles per hour (190 kilometers per hour). This rating is crucial for drivers who often travel on highways or require reliable tire performance at higher speeds. Exceeding the speed rating can cause accelerated tire wear and reduced handling capabilities.

Practical Importance of the “107T” Designation

Choosing tires with the correct load index and speed rating is vital for vehicle safety and performance. The “107T” designation suits many passenger vehicles and light trucks, offering a balance between durability, comfort, and speed capability. Drivers who prioritize high-speed performance or carry heavier loads may need tires with higher ratings to meet their specific demands.

Common Misunderstandings About Tire Codes

One frequent misconception is that the speed rating indicates the maximum speed a driver should travel. In reality, it reflects the tire’s tested capability, not a recommended driving speed. Another confusion arises around the load index, where some assume it is the total vehicle load capacity rather than the maximum load per tire. Proper interpretation of these codes ensures safer tire selection and usage.

Example Scenario

Consider a delivery van that regularly carries heavy cargo. Selecting tires with a “107” load index ensures each tire can support up to 2,109 pounds, preventing overloading risks. Additionally, the “T” speed rating guarantees the tires can safely handle highway speeds up to 118 mph, providing peace of mind during transit.

Related Terms

  • Load Index: Numeric code indicating tire load capacity.
  • Speed Rating: Letter code representing maximum safe speed.
  • All-Season Tires: Tires designed for varied weather conditions.
  • Performance Tires: Tires optimized for handling and speed.
  • Tread Depth: Measurement of tire tread remaining, affecting grip and safety.

Frequently Asked Questions (FAQ)

What does the number 107 mean on a tire?

It is the load index, indicating the tire can support up to 2,109 pounds (960 kg) when properly inflated.

What speed does a “T” rating allow?

A “T” speed rating means the tire is safe for speeds up to 118 mph (190 km/h).

Can I use tires with a lower load index than recommended?

No, using tires with a lower load index than specified can be unsafe and may lead to tire failure under load.

How often should I check my tires if they are rated 107T?

Regularly inspect tire pressure and tread depth, ideally monthly, to maintain optimal performance and safety.

Final Answer

The “107T” tire code combines a load index of 107, supporting up to 2,109 pounds per tire, with a speed rating of “T,” allowing speeds up to 118 mph. Understanding these ratings helps drivers select tires that ensure safety, durability, and appropriate performance for their vehicle and driving conditions.

References

Categorized in:

Meaning, Tires,

Last Update: May 30, 2026