What does 155R13LT tire mean?
5 Answers
155 represents the "section width" of the tire, which is the width at its widest point in millimeters. R stands for radial construction, 13 is the rim diameter in inches, and LT indicates a light truck tire. Explanation of tire specification parameters: The international standard tire code expresses the section width and aspect ratio as a percentage in millimeters, followed by the tire type code, rim diameter (in inches), load index (permissible load capacity code), and permissible speed code. Taking 215/70R15 as an example: The meanings of 215/70R15 are as follows: 215 indicates the tire section width in millimeters, with intervals of 10mm; 70 is the aspect ratio, which is the ratio of the tire sidewall height to the tire section width, with 70 representing 70%. Generally, the aspect ratio of tires ranges between 30% and 80%. Under normal circumstances, ordinary cars should not use tires with an aspect ratio greater than 75%, while luxury cars and high-performance sports cars are recommended to use tires with an aspect ratio less than 60%. R is the abbreviation for Radial, indicating that the tire has a radial structure, and 15 is the outer diameter of the rim in inches.
I've been running an auto repair shop for many years and often get asked what 155R13LT tires mean. Simply put, 155 stands for a tread width of 155 millimeters, R indicates radial construction, 13 refers to a 13-inch rim diameter, and LT means Light Truck tire. These tires are designed to carry heavier loads, making them suitable for pickup trucks and small vans that haul more cargo. They're more durable and robust than regular passenger car tires. I've serviced quite a few pickups using this specification—they have strong load-bearing capacity and are less prone to bulging on long trips. But I should remind everyone that if used on private cars, comfort may be compromised, and the tires can be noisier. When choosing tires, make sure to match the vehicle type and avoid mixing to prevent safety hazards. Regular checks on wear and tire pressure can extend their lifespan.
As a car enthusiast, I've done quite a few modifications and I'm familiar with the 155R13LT tire specifications. The 155mm tread width provides moderate grip, the 'R' stands for radial construction which enhances stability, the 13-inch wheel size is suitable for compact vehicles, and the 'LT' marking indicates it's optimized for light trucks, capable of handling heavier loads. I've tried them on a friend's delivery van—super stable on mountain roads and fuel-efficient too. If you frequently drive on bumpy roads or carry cargo, these tires are ideal; but they're a bit too stiff for regular sedans. Just make sure the tire sidewall is marked 'LT'—don't accidentally buy standard tires or they might blow out. A little extra care during maintenance is all you need.
I'm not a professional, but I've handled car maintenance for my family a few times. In the 155R13LT tire, 155 refers to the width in millimeters, 13 indicates the wheel size, and LT is specifically designed for light trucks. The mechanic mentioned that this type of tire has strong load-bearing capacity, making it suitable for vehicles carrying lots of tools, and it has a longer service life. I've seen my neighbor's van using this model—it doesn't sag even when loaded. The key is to match the tire to the vehicle's condition, otherwise, handling can become less flexible. Regularly checking tire pressure and wear can save money and ensure safety.
From a safety perspective, I've looked into this extensively. The 155R13LT tire is specifically designed for light trucks, with reinforced construction to handle additional weight. At 155mm wide and 13 inches in diameter, the LT marking ensures high load capacity. Using it on regular passenger cars may result in more pronounced bumps and sluggish steering. I recommend consulting the vehicle manual to confirm specifications, as improper use can significantly increase accident risks. Don't skip maintenance like tire pressure checks, especially before and after full-load operations, to ensure smooth and reliable driving.
