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Difference between ZR17 and R17?

2 Answers

StKaden

07/29/25 10:31pm

The letter Z is a speed indicator, and there is basically no difference between ZR17 and R17. Below is a detailed introduction to the letters and numbers in tires (taking 175r14 as an example): 1. 175: The 175 represents that the cross-sectional width of the tire is 175mm; 75 represents that the aspect ratio of the tire is 75%. 2. r: The r indicates that the tire has a radial structure. 3. 14: The 14 indicates that the tire is suitable for a rim diameter of 14 inches. 4. C: The C indicates that the tire is a reinforced tire. 5. OUTER-SIDE: The OUTER-SIDE marking indicates the rotation direction of the tire.

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LeRyder

08/15/25 11:26pm

I'm a guy who loves joyriding and often enjoys pushing performance cars on the highway. The difference between ZR17 and R17 tires mainly lies in their speed adaptability: ZR17 is a Z-rated tire specifically designed for high speeds, capable of easily handling speeds above 240 km/h, with a stiffer carcass and stronger grip, reducing slippage or deformation during turns and braking. In contrast, R17 is just a standard tire, likely with an H or T speed rating, suitable for city and moderate-speed driving—going too fast may cause overheating or loss of control. My advice is, if you frequently drive on highways or own a sports car, you must go for ZR17; otherwise, performance and safety will be compromised. Remember, always check your car manual for tire recommendations, don’t swap them randomly, and regularly inspect tread wear and pressure to avoid accidents.

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