What is better, LT or P rated tires?
P-metric might be ideal if you prioritize a smoother ride, don’t frequently haul or tow heavy loads, and drive mainly on highways or urban roads. LT tires would be more appropriate if you often carry heavy loads, tow trailers, or go on rough terrains. That’s right: because LT tires have thicker, reinforced sidewalls for heavy-duty use and challenging driving conditions, they’re a great choice for off-road use. That’s why most all-terrain tires and mud tires are LT rather than the standard p-metric designation.The cords in an LT tire are a larger gauge than P-metric tires so that the tire can carry heavier loads. LT tires often have an extra steel belt, a deeper tread, and thicker sidewall rubber for more protection than a P-metric tire. LT tires are usually 8-ply (Load Range D) or 10-ply (Load Range E).Because of their stiffer sidewall, lt tires don’t absorb bumps very well, causing more vibrations and road noise, particularly in lighter trucks and suvs. That’s why we typically only recommend using lt tires on larger trucks, suvs and vans, or for use in off-road conditions.
What is the 105% TYRE rule?
It has often been said that to have good cycling wheel performance, there is a rule that the external rim width of a wheel should be at least 105% of the width of the tyre, or that there is a simple relationship/formula that will predict the aerodynamic performance of a wheel based on rim width vs tyre width. The 105% rule says that the external rim width of your wheel should be at least 105% of your tire’s actual measured width. This ratio allows the airflow to remain attached as it moves from the tire onto the rim, reducing drag and making your bike more aerodynamic.It has often been said that to have good cycling wheel performance, there is a rule that the external rim width of a wheel should be at least 105% of the width of the tyre, or that there is a simple relationship/formula that will predict the aerodynamic performance of a wheel based on rim width vs tyre width.
What does 75 R mean on a tire?
R stands for radial construction. B means belted bias and D stands for diagonal bias construction. The last dimension listed in the size is the diameter of the wheel rim, which is most often measured in inches. If a tire size reads, LT235/75R15 104/101S, the LT indicates that this tire is meant for Light Truck use. Because measurement of sidewall height of the tire is a percentage of the tread section width a 75 tire would be taller than a 70 height aspect ratio tire if the section width was the same.The 75 tells us the tire’s aspect ratio, or the ratio between its cross-section height to its width. Our example tire is 75% as tall, from the inside rim to the outside, as it is wide.The D in 75D15 stands for diagonal or bias ply, indicating that the tire’s internal fabric layers are diagonally arranged, while the R in 75R15 stands for radial, meaning that the tire’s internal fabric layers are arranged radially from the center.
What is the 7 7 rule for tires?
The 7 7 rule for tires provides a simple temperature guideline for timing your seasonal tire changes. Install winter tires when daily temperatures drop to 7°C (45°F) or below for seven consecutive days. Remove them in spring after seven straight days above 7°C. If you leave them on too late, your winter tires will degrade quickly. So, when is the right time to swap? The rule of thumb is 7-for-7: wait until there are seven consistent days at 7 degrees Celsius. The reverse is also true for transitioning to winter.
What is the 3% rule for tires?
The 3% rule states that when replacing tires, the new tire’s diameter should not differ from the original by more than 3%. This guideline helps maintain proper vehicle performance, safety system functionality, and speedometer accuracy. As a general rule, you want replacement tires that are within 3 percent of the diameter (height) measurement of the tires originally on your vehicle.