How to Read Car Tire Size Specifications?

1 Answers
RhettRose
07/29/25 12:02pm
Taking 205/55R16 as an example for car tire size specifications: 205 indicates the tire width is 205mm; 55 represents the aspect ratio, which is the percentage of the tire's section height to its width at 55%, also known as the profile; R stands for radial tire; 16 denotes the diameter of the wheel rim or steel wheel at 16 inches. Tires are circular elastic rubber products mounted on various vehicles or machinery to roll on the ground, typically installed on metal rims. They support the vehicle body, cushion external impacts, ensure contact with the road surface, and maintain driving performance. It's essential to rotate the tires on the vehicle appropriately and timely to ensure even wear and extend their service life. Tires with a slightly larger outer diameter should be installed on the outer wheels.
Was this review help?
12
5
Share
More Forum Discussions

Can a 2WD Vehicle Be Converted to 4WD?

2WD vehicles can be converted to 4WD. Below are the relevant details about converting a 2WD vehicle to 4WD: 1. This depends on the specific vehicle. Most part-time 4WD systems are essentially no different from 2WD, unless fuel efficiency is not a significant concern. For hardcore off-road vehicles equipped with low-range 4WD; 2. Differential locks make a fundamental difference. As long as the original vehicle has a 4WD configuration, it can be upgraded in the original position, but annual inspections may become more complicated; 3. Switching from 2H to 4H or from 4H to 2H can be done while driving, but there are speed restrictions—generally not exceeding 80 km/h. A 2WD vehicle refers to a car where either the rear wheels or front wheels are the driving wheels, while the opposite wheels are fixed as non-driving wheels. A 4WD vehicle refers to a car where either the rear wheels or front wheels can serve as the driving wheels.
11
5
Share

What is ridgestone tire?

ridgestone likely refers to the Japanese Bridgestone (BRIDGESTONE) tires. Here is some relevant information: 1. Bridgestone Corporation is the world's largest tire and rubber product manufacturer and one of the top three tire companies globally. The Bridgestone Group was established in 1931. Bridgestone passenger car tires have a rich and comprehensive product lineup. 2. Currently, Bridgestone tires are used in products from several Chinese automakers, including Guangzhou Honda, Zhengzhou Nissan, and Beijing Jeep. The company has production bases in 24 countries worldwide, and its sales account for one-fourth of the global market share.
5
0
Share

How long does the ETC battery last?

Generally, an ETC device can last 2-3 months on a single charge. The ETC user manual does not specify how long a single charge lasts. For car owners who do not frequently use ETC, it is recommended to charge the ETC device every 3 months. For wired power-supplied ETC devices, if they are not used for a long time, it is advised to charge them once a month to avoid affecting the battery lifespan due to self-discharge. ETC stands for Electronic Toll Collection, which refers to the electronic toll system. To apply for ETC, the following documents are required: the owner's valid ID card and vehicle license (original and copies), and if the application is made by a proxy, the proxy's valid ID card is also needed. The copy of the vehicle license should include the page with the most recent annual inspection stamp. Additionally, a bank card for deducting highway tolls is required. Applicants must be between 18 and 60 years old and own the vehicle in their name. For company vehicles, the required documents include: A letter of introduction from the vehicle owner (with company seal); a copy of the organization code certificate or business license (with company seal); the original ID card of the proxy; the original vehicle license; and the vehicle for which ETC is to be installed. ETC works by communicating with microwave antennas in ETC lanes at toll stations via an onboard electronic tag installed on the vehicle's windshield. It uses computer networking technology to settle payments with banks in the background, allowing vehicles to pass through highway or bridge toll stations without stopping to pay tolls. Benefits of installing ETC: Time-saving: Avoids the hassle of waiting in line; Green and eco-friendly: Reduces noise and exhaust emissions as vehicles pass through toll stations without stopping; Cost-saving: Reduces vehicle wear and fuel consumption by minimizing start-stop cycles, and users can enjoy toll discounts; Efficiency improvement: ETC lanes can theoretically increase passing efficiency by 2-3 times, making traditional ETC faster and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous.
18
1
Share

Which is better, V6 engine or inline-six?

There is no absolute superiority, as each has its own advantages and disadvantages. The inline-six cylinder engine offers strong power, simple layout, and high stability; the V6 engine provides better smoothness and comfort. Therefore, the choice can be made based on needs: if you prefer handling and power, choose the inline-six; if you prefer comfort, choose the V6. Here is the relevant introduction: 1. The inline-six cylinder engine is structurally simpler, with all cylinders arranged in a straight line, requiring only one cylinder head and one set of double overhead camshafts. 2. The V6 engine is most commonly arranged as two inline-three cylinders at a 60-degree angle, requiring two cylinder heads and two sets of camshafts.
10
0
Share

What type of suspension does the BMW M5 Competition use?

The BMW M5 Competition features a double-wishbone independent suspension at the front and a multi-link independent suspension at the rear. Here are the relevant details: 1. The BMW M5 Competition is equipped with a 4.4-liter twin-turbocharged V8 engine, which delivers a maximum power output of 460 kW and a maximum torque of 750 Nm. The engine reaches its peak power at 6,000 rpm and its maximum torque between 1,800 and 5,860 rpm. It is paired with an 8-speed automatic transmission. 2. The double-wishbone suspension can absorb more impacts, thereby improving the car's comfort and reducing brake dive and body roll. The multi-link suspension enhances the wheel's contact with the road, improving traction and the car's handling performance.
9
5
Share

How Long Can Car Tires Be Stored Before They Become Unusable?

Newly produced tires require 8 to 12 months of storage before entering a stable period. Tires stored for more than 3 years should not be used. This time frame is calculated from the production date, not the purchase date. Generally, the production date is marked on the sidewall of the tire. Here is some relevant information: 1. Typically, the service life of a tire is around 5 years, meaning that the time from production to installation should not exceed 8 years. Generally, tires should be replaced every 5 years or after driving 60,000 to 80,000 kilometers. However, the actual replacement cycle depends on driving conditions, temperature, tire pressure, and driving habits, as tire wear varies under different circumstances. 2. If a tire is severely worn and the tread pattern becomes smooth, its grip and drainage performance will significantly decrease, compromising safety. This can lead to vehicle skidding, longer braking distances, and a higher risk of accidents. Regular checks, such as cross-rotating front and rear tires, testing tire pressure, and performing wheel balancing, are essential to ensure driving safety.
11
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.