What does 91y on a tire mean?

[MacJourney]

The 91 in the tire specification parameter 91y represents the load index. By referring to the tire specification chart, it can be determined that its maximum load capacity is 615kg, while the y indicates a maximum speed of 300 kilometers per hour. The following are the car tire maintenance items: Tire rotation: It is recommended to rotate the tire positions every 10,000 kilometers to evenly distribute tire fatigue, prevent wear, and extend the tire's service life. Tire pressure inspection: Check at least once a month. If the tire pressure decreases too quickly, please visit a local tire shop for inspection to avoid causing further damage to the tires.

[VonDaniella]

I saw this question, let me tell you what 91Y on a tire means. The number 91 refers to the load index of the tire, simply put, it can bear a maximum weight of about 615 kilograms. The letter Y indicates the speed rating, meaning the tire is designed for a maximum speed of 300 kilometers per hour. These markings are on the sidewall of the tire, and choosing the right one is crucial because if the load is too heavy or the speed is too high, the tire may burst or become unstable, increasing the risk of accidents. I usually enjoy studying cars and have found that matching the right tires to the vehicle can enhance driving experience and safety, such as using winter tires in winter and paying attention to these specifications. I recommend everyone to refer to the vehicle manual when replacing tires and not to buy mismatched ones just to save money, as it can protect you and your family's safety.

[MargaretLee]

As a safety-conscious driver, I always emphasize the importance of tire specifications. The '91' in 91Y represents a load capacity of 615 kilograms, while 'Y' indicates a maximum speed of 300 km/h. These figures aren't mere decorations—they directly impact driving safety. Overloading or exceeding speed limits may cause tire failure, especially on slippery roads. I recommend drivers regularly inspect tire wear and pressure to maintain optimal condition. When replacing tires, ensure they match the original specifications to prevent accidents. Additionally, choosing reputable tire brands reduces risks, as they offer more reliable performance in emergencies. Safe driving starts with small details—never overlook these specifications.

[AbigailFitz]

When I first got into cars, I was also curious about what 91Y on tires meant. Simply put, 91 indicates the tire can carry a load of 615 kilograms, and Y means it can handle speeds up to 300 km/h. It sounds fancy, but it's actually quite practical—if you're loading a lot of luggage or driving at high speeds, the tires need to keep up. Once, I almost bought the wrong tires, but luckily I checked the manual. So I remind beginners to confirm these numbers match their vehicle when buying new tires; also, regularly check for tire wear or cracks to avoid unexpected breakdowns. Good tires make driving much more reassuring.