What does 91w on a tire represent?
2 Answers
Tire 91w indicates that the maximum load capacity of a single tire is 615 kilograms, and the maximum speed it can withstand is 270 KM/H. 91 represents the load index, which is the numerical value indicating the maximum load a tire can bear under specified conditions when inflated to its maximum air pressure. The methods for replacing and maintaining tires are as follows: Method for replacing tires: Park the vehicle in a safe location, turn on the hazard warning lights, and engage the handbrake. Place a triangular warning sign at an appropriate distance behind the vehicle. Retrieve the spare tire, along with the provided wrench and jack, then remove the old tire and install the new one. Methods for tire maintenance: Regularly remove stones stuck in the tire treads, minimize exposure to direct sunlight, frequently check tire pressure, pay attention to suspension maintenance, periodically inspect front wheel alignment, adopt careful driving habits, choose smooth road surfaces while driving, avoid objects that can puncture or scratch the tires, and steer clear of chemical spills that may corrode the tires.
As a car enthusiast, I always love deciphering the alphanumeric codes on tires. In the label '91W', the number 91 represents the load index, indicating that the tire can carry a maximum load of 615 kilograms, which is roughly the total weight limit for a compact car. The 'W' stands for the speed rating, meaning the tire can safely handle speeds up to 270 km/h. Why is this important? Because when selecting tires, you must match the manufacturer's recommended specifications. If your vehicle carries heavy loads or you enjoy high-speed driving, choosing a 91W-rated tire ensures peace of mind, preventing premature wear or blowout risks. I always pay close attention to this when replacing tires. I remember a friend whose tires had too low a load index—after overloading, the sidewalls bulged, costing unnecessary money and compromising safety. I recommend all car owners regularly check tire pressure and tread wear, ensuring the labeled specifications meet factory requirements for a smoother and safer ride.
