How to Interpret Tire Specification Parameters?

1 Answers
Dias
07/29/25 10:00pm
Tire model specifications can be found on the sidewall (tread pattern model). The tire specification size is expressed in millimeters as the section width and the percentage of the aspect ratio. This is followed by: tire type code, rim diameter (in inches), load index (allowable load mass code), and allowable vehicle speed code. The influence of tire specifications on other indices is as follows: 1. The width of the tire is an important index affecting the vehicle's fuel consumption and economic performance. The wider the tire, the larger the contact area with the ground, and the corresponding fuel consumption increases. 2. Aspect ratio: The lower the aspect ratio of a car tire, the greater the pressure it can withstand, the higher the responsiveness, making it very quick to handle, but it requires a high level of elasticity and softness from the shock absorbers.
Was this review help?
8
3
Share
More Forum Discussions

What are the reasons for the central control screen of Geely Emgrand not lighting up?

Possible reasons include power supply issues, poor contact in the wiring, or damaged display screen. Below is relevant information: Geely Emgrand: Geely Emgrand (referred to as Emgrand) is a sub-brand under the parent brand Geely. The new Geely Emgrand was launched on July 26, 2014, equipped with a 1.3T GeTec DVVT turbocharged engine, featuring front-wheel drive, a maximum power of 98kw, turbo intervention at 1800 rpm, and a peak torque output of 185NM at 2000 rpm. Products: Following the Emgrand EC718 and EC718-RV, subsequent models include the Emgrand EC825, as well as sports cars, SUVs, MPVs, and pickup models such as GT, EC8, EX7, EX8, ET-9, and EX9. The product range is rich and covers a wide range, fully meeting the diverse needs of various consumers. Among these products, the GT (Geely Tiger) is the most representative model for the Emgrand brand.
8
2
Share

What is the tire size of the CFMOTO 650MT?

The CFMOTO 650MT uses Metzeler Z8 model tires, with front and rear tire specifications of 120/70R17 and 160/60R17 respectively. Compared to the Metzeler M5, these tires are more suitable for highway cruising. The functions of automobile tires: Automobile tires are one of the important components of a vehicle, directly contacting the road surface and working together with the suspension system to absorb shocks during driving, ensuring good ride comfort and smoothness, maintaining excellent adhesion between the wheels and the road surface, improving traction, braking, and off-road capability, and bearing the weight of the vehicle. The parameters of a tire represent: production date, tire specifications. Taking a tire model of 185/60R17 89H as an example, the tire parameters respectively represent: 185 indicates the tire width is 185mm; 60 indicates the aspect ratio of the tire section is 60%; R indicates the tire has a radial structure; 17 indicates the rim diameter is 17 inches; 89 indicates the load index; H indicates the speed rating.
5
3
Share

Can Sinopec and private gas station fuels be mixed?

Fuels from different gas stations and different brands can be mixed as long as they have the same octane rating. If the octane ratings are different, even fuels from the same brand should not be mixed, as this can lead to abnormal combustion, causing engine knocking. Knocking not only damages the combustion chamber but also directly affects the normal operation of the engine, and in severe cases, may lead to engine damage. To find out which octane rating your car requires, you can refer to the vehicle's user manual or check the fuel cap for the specified octane rating. What to do if you add the wrong gasoline: If you add gasoline with a higher octane rating than required by your car, for example, adding 95 octane when 92 is specified, you can simply switch back to 92 octane after the current fuel is consumed. If you add gasoline with a lower octane rating than required, for example, adding 92 octane when 95 is specified, you can add a high anti-knock fuel additive. Alternatively, you can drain the fuel and refill with 95 octane gasoline.
7
5
Share

Why does a car drip water in summer?

It is a very normal phenomenon for a car's exhaust pipe to drip water in summer. The reason why a car's exhaust pipe drips water is that water and carbon dioxide are produced after the gasoline is completely burned, which indicates that the engine is working normally and the atomization effect is good. If the exhaust pipe emits mist, it indicates that the engine is in excellent condition. The reasons for the drainage of the air conditioning system are as follows: 1. Reason one: Due to the high temperature inside the car, the cooling system needs to be activated to reduce the temperature inside the car. At this time, the moisture in the hot air inside the car will condense on the surface of the evaporator's heat-absorbing fins, which have a very low temperature. The water droplets are collected by the plastic shell of the evaporator and discharged out of the car through the pipes. 2. Reason two: The low-pressure pipes of the car air conditioner are not wrapped with insulating foam, and the surface of the pipes is prone to condensing moisture in the air. The water droplets will also drip down from the lowest point of the pipes.
13
1
Share

How to Solve the Sunroof Rattling Issue After Sun Exposure?

To address the rattling issue, inspect the sunroof sliding rails and consider applying a small amount of lubricant. Check the sunroof's fastening condition, as looseness may also cause rattling. Adjust the sunroof screws to eliminate the noise. The sunroof sealing strip, when exposed to prolonged rain or sunlight, is prone to aging. Rubber conditioner can temporarily restore the strip's performance. Open the sunroof fully and spray rubber conditioner onto the sealing strip. Effects of prolonged sun exposure on the car: The engine is more likely to develop issues. Voltage instability may occur under high temperatures. The fuel system is prone to problems. High temperatures can alter the car's paint. The interior is susceptible to aging in high temperatures. How to deal with car sun exposure in summer: After a car is exposed to the sun in summer, the interior temperature rises. You can use the air conditioning's external circulation mode combined with opening the windows to cool down. Additionally, when parking, choose a shaded spot if possible. If not, use a sunshade, which is made of foil material and is easy to fold and carry.
6
1
Share

What are the differences between the Trumpchi Shadow Leopard J15 and J16?

J16 comes with several additional technological features, including connected car system, remote start, occupant monitoring, driving assistance, and more. Below is the relevant introduction: Trumpchi Shadow Leopard: The Trumpchi Shadow Leopard, also known as the Trumpchi EMPOW55, made its first public appearance at the 2020 Guangzhou International Auto Show. Based on GAC Trumpchi's GPMA (GAC Global Platform Modular Architecture) platform, it is the first sports sedan under this platform, positioned as a compact car with a low drag coefficient of 0.26Cd. Specifications: The Shadow Leopard is equipped with the all-new third-generation 1.5TGDI engine from the Julang Power series, delivering a maximum power of 130kW and a peak torque of 270N·m. With GCCS technology at its core, it integrates twin-scroll turbocharging, top-mounted water-cooled intercooler, high-pressure injection, large-inertia balance shaft, intelligent thermal management, and low-friction technology, achieving a fuel consumption as low as 5.7L per 100km. The transmission efficiency reaches up to 96%, with a shift time of just 0.2 seconds.
4
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.