What is the difference between zr19 and r19?
1 Answers
zr19 and r19 have the following differences: 1. Different speed ratings: R indicates that the tire's maximum speed is 170 km/h; while ZR indicates that the tire's maximum speed exceeds 240 km/h. 2. Different meanings in other expressions: In tire parameters, R stands for radial tires. Radial tires are named because the internal cord weaving arrangement direction forms a 90-degree angle with the tread centerline, resembling the meridians on a globe. ZR, on the other hand, only serves as a speed code for tires. Additional information: The benefits of radial tires are as follows: 1. Larger contact area, better grip. 2. Increased rigidity, more stable in turns. 3. Lower friction, faster heat dissipation, safer at high speeds. 4. Greater load-bearing capacity. 5. Better vibration damping, more comfortable. 6. Stronger resistance to punctures. 7. Lower rolling resistance, saving fuel. 8. More wear-resistant, longer service life.