What are the differences in performance between the two models of car tires, 165 70 13 and 165 65 13

165 represents the width of the tire, which means that the nominal width of the tire is 165mm, which is the width of the surface where the tire is in contact with the ground.

70 stands for flat ratio.

It means that the flat ratio of the tire is 70%, and the flat ratio can indirectly reflect the nominal height of the tire wall. The sidewall is the side of the tire that is written all over in English. The nominal height of the sidewall is calculated as:

Nominal width Flat ratio. So the nominal height of the tire wall is: 165mm 70%=

r is the structure of the inner ply layer of the tire**, and r indicates that the tire is a radial tire.

Don't mistake it for the radius "r".

13 means that the inner diameter of the tire is 13 inches, which means that it can only be installed on a 13-inch wheel. 1 inch = 13 inches is.

The outer radius of the tire is: the height of the sidewall (the radius of the inner circle of the tire).

Take the tire width, which means that the nominal width of the tire is 165mm, which is the width of the surface where the tire is in contact with the ground.

65 stands for flat ratio, which means that the flat ratio of the tire is 70%.

r is the structure of the inner ply layer of the tire**, and r indicates that the tire is a radial tire. Don't mistake it for the radius "r".

13 means that the inner diameter of the tire is 13 inches, which means that it can only be installed on a 13-inch wheel. 1 inch = 13 inches is.

The outer radius of the tire is: the height of the sidewall (the radius of the inner circle of the tire (take.

The tire width of both specifications is the same, both are centimeter tire width. But because the flat ratio is different, the diameter of the tires is also different, the diameter of the tires of 165 70 13 is centimeters, and the diameter of the tires of 165 55 13 is centimeters, and both specifications use 13-inch wheels, so the biggest difference is the tire diameter.

The width of the tires is the same, the diameter is different, and the fuel consumption will be greater if the diameter is larger, but the two specifications are not interchangeable, because the different diameters will cause errors in the speedometer.

Tires are classified according to their use, including truck tires, passenger car tires and mining tires, and the models are different.

There is no big difference between the two tires. Maybe one is more durable, and the other is weaker.

In fact, there is no big difference in performance, but the specifications are different, but the proportion is different.

The difference in performance is not very large, mainly some differences in design philosophy.

The difference between the two of them is that the specifications are different, and there is no big difference in performance.

The two of them are mainly differences in model, not performance.

There is no difference in performance, just different specifications.

165 70-13 and 165 65-13 have different diameters, and the fuel consumption will be greater if the diameter is larger.

The tire diameter of the 165 55 13 is centimeters, and both specifications use 13-inch wheels, so the biggest difference is the tire diameter.

The width of the tires is the same, the diameter is different, and the fuel consumption will be greater if the diameter is larger.

165 70-13 and 165 65-one with a large diameter and a small diameter, the fuel consumption of the larger diameter will be greater.

Maybe one is more durable, and the other is weaker.

14 Steel rims that can be used.

Tires are ring-shaped elastic rubber products that are grounded and rolled on various vehicles or machinery. In 1845, R. W. Thomson, a Scottish-born civil engineer, invented the pneumatic tyre, and obtained a patent for the British ** with the title of "Improvement of the Wheels of Horse-drawn Carriages and Other Vehicles". On December 10 of the same year, the first pneumatic tire was born.

Tires are usually mounted on metal rims, which can support the body, cushion external shocks, achieve contact with the road surface and ensure the driving performance of the vehicle.

Tires are often used under complex and harsh conditions, and they bear various deformations, loads, forces, and high and low temperatures when driving, so they must have high load-bearing performance, traction performance, and cushioning performance. At the same time, high abrasion resistance and flexural resistance, as well as low rolling resistance and heat generation are required. Half of the world's rubber consumption is used in tire production, which shows that the ability of tires to consume rubber is not insignificant.

The meanings of these numbers are: 165 represents the width of the tire section, the unit is mm, the width of the tire is between 145-285mm, and the interval is 10mm; 70 is the flat ratio, that is, the ratio of the height of the tire sidewall to the width of the tire section, R means that the tire is a radiation layer structure, and 13 is the outer diameter of the wheel, and the unit is inches.

Some tires also contain other letters or symbols, which have special meanings: "X" means high-pressure tires; "C" indicates strengthened; "b"indicates a bias tire; "One" means low-pressure tires. M and S are abbreviations for Mud and Snow respectively, which indicate that this tire is suitable for use on ice, snow and muddy roads.

The difference between these two tires is the flat ratio of the tire, which is the ratio of the sidewall to the tread.

The flat ratio on the left is 55, and the one on the right is 70. In contrast, the larger the flat ratio, the better the comfort, but the tires are relatively fragile.

165 refers to the tread width of 165mm, and 13 refers to the diameter of the hub is 13inch.

Tires are one of the most important components of a car, and its main functions are:

1. Support the full weight of the vehicle, bear the load of the car, and transmit the force and torque in other directions;

2. Transmit the torque of traction and braking to ensure good adhesion between the wheels and the road surface, so as to improve the dynamics, braking and passability of the car; Together with the automobile suspension, it mitigates the impact of the car when driving, and attenuates the resulting vibration;

3. Prevent auto parts from severe vibration and early damage, adapt to the high-speed performance of the vehicle and reduce the noise during driving, and ensure the safety, handling stability, comfort and energy-saving economy of driving.

Hello! Take 165 55R13 as an example:

165 = cross-sectional width of 165 mm.

55 = 55% aspect ratio

r=radial tire structure.

13 = Rim diameter is 13 inches.