Is there a difference between R and ZR of tires?

The tire ZR indicates that the maximum speed of the tire is more than 240 km/h, and the ZR represents the Z-class high performanceRadial tires, not ordinary Z-class tires. R stands for radial tires, which are widely used in various types of cars due to their many advantages such as good wear resistance, high elasticity, low rolling resistance, strong bearing capacity and light weight.

The difference between the tire zr and r is that the parameters and definitions are different:

1. Tires withstand different speeds. r represents the maximum speed of the car tires 170km h; The ZR represents the top speed of the car's tires in excess of 240 km/h.

2. Other expressions have different meanings. In the tire parameters, R stands for radial tires. Radial tires refer to the internal cord weaving arrangement of tires at an angle of 90 degrees to the tread centerline, similar to a globe.

on the meridian. And the zr is only used as the ** of the tire speed.

To sum up, if you look at the data aspect, the tire ZR is better, it can withstand higher driving speeds, has better performance, and belongs to high-performance tires, suitable for luxury cars or supercars.

If the vehicle is of a higher grade, it is better to choose the tire ZR. However, the maximum speed of domestic highways is generally 120 km h, and the ZR is not suitable for daily use. And if it is an ordinary car, it is better to choose R, its speed level can meet the needs of daily use, and it is more practical.

This R may have two meanings, which can represent radial tires, for example, the R of 205 55R16 is the meaning of radial tires, and it can also represent the speed class, which is designed to reach a maximum speed of 170 kilometers per hour, and Zr is the speed level, which means that the maximum speed exceeds 240 kilometers per hour.

If the English is in the middle, R stands for radial tires, and Z stands for sports tires, that is, sports tires, there is a difference between left and right. Like what.

225 45-ZR-18 96W, where ZR is a sports radial tire. The final 96W is the weight and speed code of the tire.

This does not affect the fighting. r stands forRadial tiresZR stands for high-performance radial tires, as long as the model and size of the tire remain unchanged, it is not affected.

Tires are ring-shaped elastic rubber products that are grounded and rolled on various vehicles or machinery. Traps are usually mounted on metal rims.

It can support the body body, cushion the external impact, realize the 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.

As the only part of the car in contact with the ground, the performance of the tire directly affects the safety of the driver and passengers of the vehicle, and the importance of tire performance can be imagined. With the rapid development of the automotive industry, consumers have begun to pay attention to the comfort, handling stability, NVH and other performance of the vehicle in addition to the safety performance of tires.

The first category is the safety performance required by regulations: high speed, durability, detachment, strength, outer edge size; The second category, the performance from tire assembly to vehicle testing: comfort, handling stability, NVH, fuel economy, impact resistance, wet and dry braking performance, wear performance, etc.

The third type is the single-tire performance test for the purpose of studying the performance of the tire monomer or the performance of the tire assembled into the whole vehicle.

Static ground pressure distribution, rolling resistance, tire rigidity, tire cell noise, tire modality.

PRAT, six-component test, odor performance, air tightness, base ruler slip environmental protection, tire dynamic balance.

uniformity, etc.

As long as the number behind your r zr remains the same, you can pass the car inspection.

R stands for radial tire ply, and Zr stands for high-performance radial tire, which is generally used in sports performance cars. Radial tires are a structural form of tires, which are different from bias tires, arch tires, pressure-regulating tires, etc. The international code for radial tires is "R", commonly known as "steel wire tires".

Radial tires can be divided into three types: all-wire radial tires, half-wire radial tires and full-fiber radial tires according to different materials

1) The carcass and belt layer of all-steel wire radial tires are made of steel cord, which is generally used for trucks and construction machinery vehicles.

2) The carcass of semi-steel wire radial tires is made of rayon or other fibers, and the belt layer is made of steel wire cord, this type of radial tire is generally used in cars or light trucks, such as buses, etc.

3) The carcass and belt layer of the full fiber radial tire are all made of rayon or other fiber cords, and the belt cord should be made of low elongation cord, which is generally used in low-speed cars or tractors.

For example, 275 45 R20 and 275 45 ZR20, 275 refers to the nominal width of the tread 275mm, 45 refers to the flattening rate (also known as the height-to-width ratio) from the rim edge to the tread height h divided by the tread width d, and then multiplied by 100%, the actual value of the flattening rate 45 is, r (zr) 20 meaning: r means that the arrangement of the tire cord layer is a radial mode, zr represents a high-performance radial tire, which is generally used in sports performance cars, and 20 means that the rim diameter is 20 inches (inch).

Hello! For example: 205 55 r16 94h represents the size of the tire, where r = radial tire structure.

z indicates a maximum speed above 240 km/h.

The Z in the tire specification indicates that the maximum speed that the tire can drive exceeds 240km, which means that the tire structure is a radial tire structure.

1.It is a speed class mark, which indicates the maximum speed at which the tire can carry a specified load under the specified conditions. If a zr is present, such as P275 40ZR1793W, then the maximum speed class ("93w""w") is 270 km.

2.Commonly used speed classes are:

Q160 kmh.

v240 km h.

r170 kmh.

w270 kmh.

s180 km h.

y300 kmh.

t190 km h.

h210 kmh.

The ZZR speed is above 240 km/h.

There is a difference between the R and Zr of tires, in terms of their parameters and definitions.

1. Tires withstand different speeds. r represents the maximum speed of the car tires 170km h; The ZR represents the top speed of the car's tires in excess of 240 km/h.

2. Other expressions have different meanings. In the tire parameters, R also stands for radial tires. Eggplant radial tire refers to the internal cord weaving arrangement of the tire at an angle of 90 degrees to the tread centerline, similar to the meridian on the globe.

And the zr is only used as the ** of the tire speed.

1. First of all, the maximum tolerable speed of tire ZR and tire R is different, the maximum bearing speed of tire ZR is 240 km/h, and the maximum speed of tire R is 170 km/h. 2. The tire type represented by tire zr and tire r is different, tire zr refers to high-performance radial tires, and tire zr can also represent the ** tire speed per hour, while tire r only refers to ordinary radial tires. 3. The tire ZR is different from the tire R suitable for the most popular car models, and the maximum speed and performance of the tire ZR are better than the tire R, so it is more suitable for configuration in luxury cars and sports cars.

The performance of the tire R in all aspects is more ordinary, which can meet the use of ordinary family cars, so it is more suitable for ordinary vehicles such as family cars.