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zr tire size

by Kiarra Mohr Published 2 years ago Updated 1 year ago

For tires with a maximum speed capability higher than 240 km/h (149 mph), a "ZR" may appear in the size designation. Tires with a maximum speed capability higher than 300 km/h (186 mph), require a "ZR" in the size designation. Consult the tire manufacturer for maximum speed when there is no service description.

Full Answer

What is Zr tire rating?

ZR shown on the sidewall of your tire is a reference to the tire’s speed rating. Historically, the speed rating ZR on a tire meant that the construction of the tire could reach 150 miles or 240 kilometers per hour. Today, a tire labeled ZR, has more capabilities than before.

What is the recommended tire size?

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What does ZR mean in tires?

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What are ZR rated tires?

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Can I use ZR tires instead of R?

R indicates that the structure is RADIAL. So, VR indicates that the tyre has a RADIAL structure and a speed index equal to V. There is therefore no difference between a ZR or an R tyre with the same speed index.

What does 40 Zr mean on a tire?

ZR shown on the sidewall of your tire is a reference to the tire's speed rating.. Historically, the speed rating ZR on a tire meant that the construction of the tire could reach of 150 miles or 240 kilometers per hour.

Do I need ZR tires?

Tires with a maximum speed capability higher than 300 km/h (186 mph), require a "ZR" in the size designation. Consult the tire manufacturer for maximum speed when there is no service description.

Are ZR tires run flat?

All ZRtyres locations carry a massive range of Run-flat tyres in stock for all popular makes and model of cars, as well as having the correct tyre fitting and balancing equipment to fit these specialist tyres correctly without damage.

What Is The Difference Between ZR And R Tires?

The letter R written on the side of a tire means that the tire utilizes a radial construction while the letters Z and R together refer to the speed rating of the tire.

How To Know If I Am Looking At The Speed Rating R Symbol Or the Radial Construction R Symbol?

As mentioned, the letter R stands for both radial construction and the speed rating of 106mph. This can create somewhat of a confusion, especially when you realize that more than 90% of all passenger car tires are made out of radial construction and thus place the letter R on the tire.

Conclusion

ZR tires were historically known as “performance-rated tires” with a speed rating of more than 149 mph while the letter R on a tire represents both the fact that it is built with a radial construction in mind and the fact that it is speed rated for 106mph.

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