Difference Between 91V and 94V Tires?
3 Answers
The differences between 91V and 94V tires are as follows: 1. Different maximum load capacity: The maximum load capacity of a 91V tire is 615kg, while that of a 94V tire is 670kg. Vehicle owners must not exceed the load limit. The speed rating is indicated by letters ranging from J to Z, where each letter represents the maximum permissible speed of the tire under a specific load index. V indicates that the tire's maximum speed is 240 km/h. 2. Different natural impact resistance: The 94V tire has better natural impact resistance and overall performance compared to the 91V.
I always thought the main difference between 91V and 94V tires lies in the numerical part. 91 means each tire can carry a maximum load of 615 kg, while 94 corresponds to 670 kg, equivalent to the weight of an extra medium-sized suitcase. The speed rating V is the same for both, indicating a maximum speed of 240 km/h, suitable for various high-speed driving conditions. If you drive a large SUV or frequently travel fully loaded, 94V tires will provide better support to avoid overloading and unexpected blowouts. On the other hand, 91V tires are more than sufficient for small cars or light-load driving. When choosing tires, don't just focus on the speed rating; matching the total weight of your vehicle is crucial for safety. I once chose the wrong model to save money and ended up with a flat tire halfway, nearly causing an accident. Now I always carefully check the vehicle manual and remind others to do the same.
From a technical perspective, the load index difference between 91V and 94V is significant: 91 represents a load capacity of 615 kg, while 94 can withstand 670 kg, with each incremental number increasing the load by approximately 55 kg. The speed rating V for both is 240 km/h, which doesn't affect daily driving. The key lies in matching the tire size to the vehicle. If you drive a heavy vehicle, 94V can distribute pressure to prevent overheating and deformation; however, 91V is sufficient for medium-sized vehicles. Before purchasing, it's advisable to use a simple formula to calculate the load—divide the total vehicle weight by the 4 tires. For instance, if it exceeds 2400 kg, 94V is preferable. This parameter directly impacts lifespan and safety, so don't overlook it when changing tires.
