**What Does Z Mean In Tire Size**

What does Z mean in tire size? ۔

Such as 205 / 40ZR17 ...

Although the ZSD rating is still frequently reflected in tire size names such as 205 / 40ZR17, size Z means over 240 km / h SD capacity, W in service description means 168 miles. Per hour, 270 km / h DP mother tires.

225 / 50ZR16 Above 149 miles per hour, 240 kilometers per hour.

205 / 45ZR17 88W 168 miles per hour, 270 kilometers per hour.

285 / 35ZR19 99Y 186 miles per hour, 300 kilometers per hour.

Recently, when the Ysd rating is in parentheses in service description, such as 285 / 35ZR19 (99Y), the maximum SD of the tire is 186 miles per hour, more than 300 kilometers per hour as shown below ۔ Under:

285 / 35ZR19 99Y 186 miles per hour, 300 kilometers per hour.

285 / 35ZR19 (99Y) Above 186 miles per hour, 300 kilometers per hour.

Tier Z classification

Continuous SD rating for tires designed for long-term use above Z150 MPH. Suitable

H = 100 MPH.

S = 130 MPH