What is the difference between 90-90-10 and 3.50-10?

1 Answers
KimberlyFitz
07/30/25 5:55am
The 90/90 marking indicates a flat high-speed tire, while the traditional 3.00-10 marking refers to a regular tire. Here are the specific differences between the two: 1. Rim diameter: The former has a rim diameter of 18 inches, while the latter has a tire size of 10 inches. 2. Aspect ratio: The aspect ratio is a tire specification that refers to the percentage of the tire's section height to its section width. In simple terms, it is the ratio of the tire's height to its width. The tire's section height is composed of the shoulder, sidewall, and toe, with the sum of these three heights being the total section height of the tire.
Was this review help?
8
1
Share
More Forum Discussions

Are all questions in Subject 1 single-choice?

Not all questions in the Subject 1 exam are single-choice. The test for driver's license Subject 1 consists of 100 questions, including single-choice and true/false questions. According to the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses," each question is worth 1 point, totaling 100 points. If a candidate answers 11 questions incorrectly during the exam, the system will automatically submit the test and end the exam. Subject 1, also known as the theoretical exam or driver's theory test, is part of the motor vehicle driver's license assessment. The exam content includes driving theory basics, road safety laws and regulations, local regulations, and related knowledge. The exam is conducted on a computer with a time limit of 45 minutes. Subject 1 exam content: Driver's license and motor vehicle management regulations; road traffic conditions and rules; road traffic safety violations and penalties; road traffic accident handling regulations; basic knowledge of motor vehicles; local regulations; knowledge of braking systems and safety devices for large and medium-sized passenger and freight vehicles; specialized knowledge for wheeled self-propelled machinery, trams, and trolleybuses. Subject 1 exam precautions: Candidates should dress appropriately for the exam; no slippers are allowed. Electronic devices and bags are not permitted in the exam room. Bring your ID card and queue to enter the waiting hall. Observe the instructions and procedures on the large screen before entering the exam room, and store personal belongings in lockers. Upon entering the exam room, candidates will be assigned seats at the identity verification station. Once seated, the exam begins. Ensure the camera is aligned correctly and follow exam discipline. If you fail the first attempt, a retake is available on the same day. Failing the retake requires payment to reschedule. After the exam, queue to collect and sign the score report; unsigned reports are invalid. There is no limit to the number of times you can schedule the Subject 1 exam. Each subject can be taken once, with one retake allowed if you fail. If you do not take the retake or fail it, the exam process ends, and you must reschedule. In contrast, Subject 2 and Subject 3 allow only five exam attempts, with scheduling available ten days later. If you fail the Subject 3 safe and civilized driving knowledge test, the passed road driving skills test scores remain valid. The driver's license test consists of three subjects: Subject 1, Subject 2, and Subject 3. Subject 1 refers to the road traffic safety laws, regulations, and related knowledge exam. Subject 2 refers to the field driving skills test. Subject 3 is divided into two parts: road driving skills and safe and civilized driving knowledge. The safe and civilized driving knowledge test is conducted after Subject 3, so it is commonly referred to as Subject 4. However, the official terminology (as per the Ministry of Public Security's Order No. 123) does not include the term "Subject 4."
13
0
Share

What to Do If You Haven't Driven for a Year After Getting Your License?

Start by practicing with an automatic transmission car, as it's simpler to operate than a manual transmission. Many people buy a used car to practice after getting their license, as used cars are relatively inexpensive. If you still remember the basic driving operations but feel nervous after not driving for a long time, you can ask an experienced driver to sit in the passenger seat. Skills can be honed over time, but courage must be mustered on your own—especially when coordinating the accelerator, clutch, and brakes.
19
5
Share

What is the reason for the continuous restart of the dash cam?

Dash cam continuously restarting is due to battery failure, and replacing the battery can solve the issue. Dash cams are mainly divided into two categories: portable dash cams and aftermarket integrated DVD dash cams. Portable dash cams can be further divided into rearview mirror dash cams and data dash cams, which are characterized by good concealment and easy installation. Aftermarket integrated DVD dash cams are usually vehicle-specific and can be divided into front-mounted and rear-mounted types. The modification difficulty for installing this type of dash cam is relatively high, but it can maintain the aesthetics of the car interior after installation.
8
1
Share

What are the effects of not completely draining the engine oil?

The effects of not completely draining the engine oil are: reduced engine efficiency. Engine oil, motor oil, or engine lubricant is a substance enhanced with additives in base oil, mainly containing anti-wear additives, detergents, dispersants, and multi-grade oil viscosity index improvers. The main functions of engine oil are to reduce friction and wear on moving parts, remove sludge (one function of dispersants) and varnish (detergents) from the engine, neutralize acids produced by fuel and lubricant oxidation (detergents), improve piston ring sealing, and cool the engine by carrying away heat from moving parts.
3
5
Share

What Material is Better for Engine Guard Plates?

Aluminum alloy is a better material for engine guard plates, as it is relatively lightweight and has high strength, meeting consumer demands. Engine guard plates are custom-designed protective devices for engines based on different vehicle models. Their primary purpose is to prevent mud from encasing the engine, which could lead to poor heat dissipation. Additionally, they protect the engine from damage caused by impacts from uneven road surfaces during driving, thereby extending the engine's service life. An engine is a machine that converts other forms of energy into mechanical energy, originating in the UK. It can refer to both the power-generating device and the entire machine including the power unit.
18
2
Share

How to Repair a Rusty Car?

It refers to the restorative repair that recovers the car's intact technical condition and fully restores its service life by repairing or replacing any parts. It refers to the operation performed to restore the intact technical condition, working capability, and service life of the car assembly. It refers to the operational repair that ensures or restores the car's working capability by replacing or repairing individual parts. It refers to the operation conducted to maintain the car's intact technical condition or working capability. Specialized car repair refers to the repair of a single or several auxiliary assemblies and accessories of the car.
4
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.