How to Read Tire Specifications and Models?

1 Answers
IslaMarie
07/29/25 11:06pm
Tire specifications are commonly represented by a set of numbers, where the first number indicates the tire section width, and the latter denotes the rim diameter in inches. The international standard tire code expresses the section width and aspect ratio as a percentage in millimeters. This is followed by: the tire type code, rim diameter (in inches), load index (permissible load capacity code), and permissible speed code. Additional information: 1. Speed rating: Tires also feature a letter indicating the speed rating, which represents the maximum speed at which the tire can carry a specified load under defined conditions. Letters A to Z denote certified speed ratings ranging from 4.8 km/h to 300 km/h. 2. Tire model specifications: Taking a 195/55R15-85 tire as an example, 195 represents the section width, 55 is the aspect ratio, and 15 is the rim diameter. Notably, the load index "85" indicates that a single tire can bear a maximum weight of 515 kg, so four tires would total 4*515=2060 kg.
Was this review help?
2
0
Share
More Forum Discussions

Can the record be deleted after handling a traffic violation?

Vehicle violation records will be cleared within 24 hours after you pay the fine. If the online query shows it has been processed, the record will be removed after 24 hours. Below is an introduction on how to check vehicle violation records: Call to inquire about traffic violations: Many regional traffic police websites provide a free traffic violation inquiry hotline for checking the status. You can also dial 114 for traffic violation inquiries. Visit the local city traffic police station to inquire about traffic violations: Bring your vehicle license and driver's license to the local urban traffic police station for inquiry. They will list all violation items for you, and you can choose to print them at any time before the vehicle inspection. Alternatively, go to the vehicle management office, where the lobby has a self-service inquiry system. Simply enter the provincial vehicle license plate number to check violation information! No verification code is required, making it very convenient! Once you have paid the fine and the points have been deducted, the website will no longer show the record. However, the vehicle management office and traffic police station, being interconnected, will still have the record, only indicating that it has been processed.
10
5
Share

Is It Correct to Use Left Foot for Accelerator, Right Foot for Brake, and Middle for Clutch?

Using the left foot for brake, right foot for accelerator, and middle for clutch is incorrect. The correct arrangement is: the leftmost pedal is the clutch, the middle one is the brake, and the rightmost is the accelerator. Only manual transmission vehicles have a clutch; automatic transmission vehicles do not. For automatic transmissions: the left pedal is the brake, and the right is the accelerator. Below are relevant details: Foot distribution: Left foot operates the clutch; right foot operates the brake and accelerator. The accelerator and brake are not pressed simultaneously. Pressing the brake is for decelerating the vehicle, while pressing the accelerator is for accelerating it. Therefore, it's impossible to press the accelerator while braking. Precautions: When shifting gears while driving, the clutch pedal should be pressed and released quickly, avoiding partial engagement (half-clutch), as this can accelerate clutch plate wear. During normal driving, do not rest the left foot on the clutch pedal for extended periods, as this can lead to rapid wear of the clutch plate.
11
0
Share

What is the part above the car trunk called?

The part above the car trunk is called the trunk lid. The trunk is usually located at the rear of the vehicle. Early designs featured an external rack at the rear of the vehicle for attaching luggage. Later designs integrated the storage area into the body, eventually becoming more streamlined. The main storage compartment is typically positioned at the end of the vehicle opposite the engine. Here are the reasons why the trunk may not open and their solutions: 1. Linkage rod or lock cylinder issue: If you frequently use a key to open the trunk lid, the linkage rod may be broken, and you should go to a repair shop to open it. If you always use a remote control to open the trunk lid, the lock cylinder may be dirty or rusty. Spraying a rust remover into the lock cylinder a few times can help open it. 2. Not unlocked: The trunk may be difficult to open if it hasn't been unlocked with the remote key. Before attempting to open it, press the unlock button on the key or check if the key battery is dead. 3. Mechanical component failure: The trunk itself may have issues, such as a broken wire or other trunk-related problems preventing it from opening.
18
5
Share

What are the tips for car usage and maintenance?

Car maintenance requires attention to air conditioning cleaning and tire replacement. Here are the relevant details: Air Conditioning Cleaning and Maintenance: During summer, the air conditioning system operates under high load. Additionally, frequent rain means cars often drive through waterlogged roads, causing the lower part of the air conditioning condenser to accumulate mud and sand. Over time, this can lead to rusting of the condenser, shortening its lifespan. Therefore, a thorough air conditioning maintenance should be performed as autumn arrives. Furthermore, pay attention to the maintenance of the heater pipes and fan. As temperatures drop in autumn, frost may form. During this season, ensure the defroster vents under the windshield are functioning properly and providing sufficient heat. Address any issues promptly to avoid unsafe driving conditions. Replace Tires with Worn Treads: In summer, high temperatures require frequent checks of tire pressure to prevent overinflation and blowouts. In autumn, as temperatures drop, tire pressure should be replenished to maintain it within the recommended range. Also, inspect tires for scratches, as rubber tends to harden in autumn and winter, making tires more prone to leaks or punctures.
9
5
Share

What to Use for Disinfection Inside the Car During the Pandemic?

Use steam disinfection or ozone disinfection. Here are the relevant introductions: Steam disinfection: Steam disinfection mainly utilizes high-temperature steam to kill germs or render them inactive. First, clean the vehicle with ordinary detergent and waterproof the electronic components inside the car. Then, spray cleaning agents and disinfectants inside the car, and finally disinfect with high-temperature steam. Since steam may have adverse effects on the car's electronic systems and has a limited effect on the air conditioning system, it is more effective in sterilizing seat leather and fabrics. Ozone disinfection: Ozone sterilization is also one of the better choices for car disinfection. Car ozone disinfection can kill various stubborn viruses and bacteria in the air, completely eliminate odors, and provide a healthy and comfortable interior space. It uses a car-specific disinfectant machine that can quickly generate a large amount of ozone for disinfection. When the ozone reaches the specified concentration, it can quickly kill bacteria and viruses and eliminate odors inside the car. Moreover, using ozone for disinfection does not produce any substances harmful to the human body.
8
2
Share

How Many Points Are Deducted for Crossing the Yellow Line in Subject 2?

In the Subject 2 driving test, crossing the yellow line during reverse parking results in immediate failure, with a deduction of 100 points. Below is relevant information: Point deductions in Subject 2: Not using the seatbelt as required; obstructing or turning off in-car audio and video monitoring devices; not following the examiner's instructions; inability to correctly use vehicle controls such as lights and wipers; rolling back more than 30 cm when starting; driving with both hands off the steering wheel; prolonged mismatch between gear and speed, causing excessively high or low engine RPM, etc. Introduction to Subject 2: Subject 2, also known as the small road test, is part of the motor vehicle driver's license assessment and refers to the field driving skills test. For the C1 license, the test includes five mandatory items: reverse parking, parallel parking, stopping and starting on a slope, right-angle turns, and curve driving (commonly known as S-turns). Some regions may include a sixth item, high-speed toll card collection. For the C2 license, the test includes four mandatory items: reverse parking, parallel parking, right-angle turns, and curve driving (commonly known as S-turns).
10
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.