What does 7.5j mean for wheel rims?

1 Answers
DeIsabella
07/25/25 2:00pm
7.5j for wheel rims indicates a width J value of 7.5 inches. Additional information: 1. Wheel rim: It is the metal component inside the tire that supports the tire and is mounted on the axle, also known as the wheel. Its main functions include influencing the size of the brake specifications and the selection of tire sizes. Larger rims can accommodate bigger brake systems, and wider rims can use higher-performance wide tires. 2. Types of wheel rims: (1) Chrome-plated rims can be divided into types such as chrome silver, water chrome silver, and pure chrome plating. (2) Although the colors of the first two types of rims are bright, they do not last long. Pure chrome plating maintains its color for a long time, and most high-end car models use this type of rim.
Was this review help?
18
1
Share
More Forum Discussions

Is There a China 7 Emission Standard?

Currently, there is a China 7 emission standard. Implementation timeline of China 7 emission standard: Based on current policy projections, China 7 may be fully implemented after 2025; at the same time, the implementation period of China 7 could be shorter than that of China 6, mainly because relevant authorities are increasingly stringent in vehicle emission regulations; moreover, the primary regulatory target of the China 7 standard will be trucks. Objectives of China 7 emission standard: The China 7 emission standard is expected to further reduce the maximum allowable emissions of air pollutants compared to the China 6 standard, such as fine particulate matter, hydrocarbons, and carbon monoxide.
4
3
Share

What is automotive OTA upgrade?

OTA (English: Over the Air Technology) refers to the over-the-air download technology, which automatically downloads upgrade packages and performs upgrades via the internet. The application of OTA technology enables mobile communication to not only provide voice and data services but also offer new service downloads, making it a faster wireless technology. Methods for vehicle OTA upgrade: 1. Connect the vehicle to the internet and perform an online upgrade. 2. Download offline data packages to carry out the upgrade. 3. Drive the car to a 4S store and have the staff assist with the upgrade.
2
5
Share

What is the purpose of the plus and minus buttons on the gear shift?

The plus and minus buttons on the gear shift primarily serve the functions of locking the gear and parking lock. Correct usage of the button on the gear shift: After the car enters the parking position, press the brake to shift the gear lever to N, engage the handbrake, release the foot brake and then turn off the engine, and finally push the gear lever into P. Precautions for the plus and minus buttons: When using the plus and minus buttons, pay attention to whether you are using the gear shift handle or the paddle shifters. The gear shift handle usually requires pushing forward to increase a gear and pulling backward to decrease a gear. If paddle shifters are used, there are usually indicators.
6
1
Share

Can a Water-Damaged Car Key Still Be Used?

If your car key gets wet, avoid using it immediately. Wait until it's properly treated before continuing to use it. Here are the treatment methods: 1. Wipe off the water: Do not press any buttons on the car key immediately after it gets wet, as this can cause water to seep into the inner layers faster. First, use a dry cloth or tissue to clean the surface. Then, disassemble the casing, remove the battery, and use highly absorbent tissues to wipe off any internal moisture. 2. Dry with cool air: Next, use a hairdryer on the cool setting to dry it. Never use hot air, as the circuit board inside the key should not be exposed to excessive heat. 3. Place it in a rice container: Alternatively, you can wrap the key in a breathable bag and place it in a dry rice container. Rice is highly absorbent and can help draw out moisture. 4. Clean with alcohol: Purchase high-concentration alcohol from a pharmacy and use a cotton swab dipped in alcohol to gently clean the internal button contact points and other areas. Let it dry afterward, as high-concentration alcohol has strong moisture-absorbing properties. 5. Send it for repair: Car remote keys are generally made of waterproof materials, but there are small gaps between the keys. If the above methods fail to salvage the water-damaged key, the only option is to send it to a repair shop or 4S store for replacement or repair.
13
5
Share

What transmission does the Tiguan L use?

The Tiguan L's transmission is manufactured by Aisin. Established in 1969, Aisin is a world-renowned specialist in the research, development, and production of automotive automatic transmissions, holding the top global market share in this sector. The Tiguan L is equipped with a 7-speed wet dual-clutch transmission. This type of transmission features seven forward gears and utilizes a wet clutch system. The wet dual-clutch design consists of two multi-plate clutches (one large and one small) mounted coaxially within a sealed hydraulic oil chamber. This configuration offers superior modulation capabilities and higher thermal tolerance, enabling the transmission to handle greater torque. For daily use of the Tiguan L's transmission, pay attention to the following points: Do not delay transmission fluid changes. Prolonged use of old fluid can damage internal components such as bearings and housing; Avoid prolonged coasting in neutral. While some experienced drivers coast in neutral with manual transmissions, doing so with an automatic can cause overheating and rough engagement when shifting back to Drive (D); Never shift into Drive (D) or Reverse (R) before the vehicle comes to a complete stop. Some drivers shift prematurely to demonstrate smooth operation, but this practice severely damages transmission gears and may lead to gear grinding over time; Refrain from frequently climbing steep slopes in Drive (D). Automatic transmissions may overheat under heavy load or shift prematurely, causing power loss. Use manual mode to maintain low gears or sport mode to protect the transmission in such situations; Avoid long-distance towing. If the automatic vehicle breaks down, transport it on a flatbed trailer with the transmission in Neutral (N). Never tow it directly with a rope or similar method.
13
4
Share

What is the maximum load capacity of a single-axle truck?

Under normal circumstances, the total weight of a single-axle truck plus its cargo should not exceed 20 tons. The specific load capacity depends on the vehicle brand and local regulations. The load capacity is indicated on the vehicle's registration certificate, and it is recommended not to overload while driving. Additional information: The following are potential issues caused by overloading: 1. Increased stress on the vehicle frame: Overloading can increase stress on the frame, and prolonged overloading may lead to frame deformation or even breakage in severe cases. 2. Severe impact on driving safety: Overloading can extend braking distance and place additional stress on the engine and transmission, significantly compromising driving safety.
14
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.