What does 98W on a tire mean?

[LondynLee]

The number 98 in 98W on a tire represents the load index, where 98 corresponds to a maximum load capacity of 750KG per tire; the letter W stands for the speed rating, indicating a maximum speed of 270km/h. The load index is molded on the sidewall of the tire, representing the maximum load limit for that tire. For driving safety, this load limit should not be exceeded, as overloading may cause excessive heat buildup and lead to sudden tire failure. Definition of tire load index: It refers to the maximum load a tire can carry when inflated to the specified pressure. It is usually represented by a numerical value. Definition of tire speed rating: It refers to the maximum speed at which a tire is allowed to operate, generally indicated by a capital letter and marked on the sidewall of the tire. In addition to the model, the following common data are also marked on the tire: Tire cord material: Represented by Chinese Pinyin, such as M for cotton cord, R for rayon cord, N for nylon cord, G for steel cord, and ZG for steel radial cord tire. Speed rating: Indicates the maximum speed at which a tire can carry a specified load under specified conditions. Letters from A to Z represent certified speed ratings ranging from 4.8km/h to 300km/h. Commonly used speed ratings include: Q: 160km/h; H: 210km/h; V: 240km/h; W: 270km/h; Y: 300km/h.

[OChristian]

I always pay special attention to tire parameters when driving. The 98W actually contains two meanings. The first number 98 is the load index, indicating that this tire can bear a maximum weight of 750 kg - the larger the number, the greater the load capacity. The following W represents the speed rating, meaning this tire can handle speeds up to 270 km/h. Nowadays many family car tires carry such markings, and choosing wrong ones during replacement would be troublesome. For example, if you frequently carry heavy loads with your SUV, too low a load index may lead to tire blowouts; if you enjoy highway driving, insufficient speed rating may cause not only vehicle instability but also potential tire bursts. When replacing tires, it's best to check the original factory parameters or consult a mechanic for advice.

[Ortiz]

Just changed tires a couple of days ago, and markings like 98W can indeed be confusing. Simply put, the 98 means each tire can bear 750 kilograms, while the W indicates a maximum safe speed of 270 km/h. This grade of tires is quite suitable for urban driving nowadays, especially for those high-performance luxury sedans. When selecting tires, consider your daily driving conditions—if you frequently drive on construction sites, opt for higher load capacity; if you often speed on highways, ensure the speed rating meets requirements. Mismatched parameters not only accelerate tire wear but also reduce grip during emergency braking, making the car prone to skidding on rainy days.

[VanAxel]

The 98W on the side of the tire is a practical parameter. 98 indicates a maximum load capacity of 750 kilograms, while W corresponds to a maximum speed of 270 km/h. This data is particularly important when selecting tires, especially when modifying vehicles. Different vehicle models have vastly different parameter requirements. For example, sports cars require higher speed ratings, while pickup trucks prioritize load indexes more. Using incorrect parameters can accelerate wear and increase braking distance in emergencies. Before changing tires, it's best to check the vehicle manual or take a photo of the original tire parameters to show the seller.

[Harley]

When it comes to tire specifications, 98w represents two key indicators. The numerical part 98 is the load index, with 750 kilograms being its upper limit. The letter w denotes the speed rating, designed to support a maximum speed of 270 km/h. This requires special attention during tire replacement, especially now that buying tires online is convenient, making it easy to purchase mismatched ones. I recommend prioritizing the original manufacturer's recommended specifications or opting for higher-grade replacements. Although lower-grade tires may be cheaper, exceeding the load limit can cause bulging, and speeding becomes even more dangerous. Tire specifications are directly related to driving safety, so never compromise on safety to save money.