Does changing from V to H speed rating for original tires have any impact?

1 Answers
DelIsaac
07/30/25 1:20am
Changing from V to H speed rating for the original tires has no impact on the vehicle's performance. V and H represent the speed rating of the tires, which is not directly related to the vehicle's performance. Additionally, vehicles on the road are subject to speed limits and will not reach the tire's maximum speed. The speed rating of tires is indicated by letters, including E, F, G, small K, L, M, N, P, Q, T, T, U, H, V, W, Y, and Z. The higher the speed rating, the greater the maximum speed the tire can withstand while driving, and the stronger the tire's grip. It is important to note that the higher the speed rating, the worse the tire's wear resistance. As the speed rating increases, the materials used in the tire become softer, reducing wear resistance. When using a vehicle, it is essential to consider not only the tire's speed rating but also to monitor the tire's condition, as this affects driving safety.
Was this review help?
1
5
Share
More Forum Discussions

Should Turning Vehicles Yield to Straight-Going Vehicles When Driving?

When driving, turning vehicles should yield to straight-going vehicles, but not all the time. Vehicles going straight on the auxiliary road must yield to vehicles turning into the main road: Roads are divided into main roads and auxiliary roads. No matter the direction, as long as you are driving on the auxiliary road, you must yield to vehicles on the main road. Some intersections may also have yield signs, so be sure to slow down and not force your way through. When encountering an inverted triangle yield sign on the road: When driving past such signs, you must slow down and yield, waiting for other vehicles to pass before proceeding. If you force your way through and an accident occurs, you will bear full responsibility. Even if you are going straight, you must yield to turning vehicles.
10
4
Share

Why can motorcycles only be started in neutral gear?

Motorcycles can only be started in neutral gear, possibly due to considerations of load and safety. Load issue: If started with the wheels engaged, the resistance increases, which can cause damage to the starter motor and starter gears. Safety: If the engine and wheels are connected during startup, the engine will directly drive the wheels to rotate, causing the entire vehicle to lurch forward. Internal combustion engines operate explosively during startup, which would naturally cause the vehicle to surge forward abruptly. Therefore, motorcycles are designed to only allow starting in neutral gear or with the clutch engaged, as a safety consideration.
11
2
Share

Do I Need to Change the Rims When Replacing Regular Tires with Run-Flat Tires?

Replacing regular tires with run-flat tires does not require changing the rims. Theoretically, for current vehicle models, as long as the specifications match, they can generally be replaced directly. Precautions: Since run-flat tires have certain impacts on the car's suspension, shock absorption, chassis, and other aspects, models originally equipped with run-flat tires have undergone certain debugging and matching, so the impact will be reduced. However, for regular models, caution is necessary. It is recommended to go to a professional tire shop for replacement, which will also be more reliable. Lower Comfort of Run-Flat Tires: Due to the need to continue driving when the tire is flat and differences in internal structure, run-flat tires are harder than regular tires, with poorer shock absorption and noise reduction performance. Reducing unsprung weight, run-flat tires are heavier than regular tires.
13
3
Share

Can Shifting Gears Prevent Vehicle Rollaway?

Shifting gears can help prevent vehicle rollaway, but it only serves as an auxiliary measure. The primary method to prevent vehicle rollaway is the parking brake. Methods to prevent rollaway on a downhill slope: When parking downhill, shift into first gear if the front of the vehicle is facing uphill. This will assist in preventing rollaway. If the front of the vehicle is facing downhill, shift into reverse gear to help prevent rollaway. No damage to the transmission: Since the vehicle is completely stationary, shifting into gear will not damage the transmission. Moreover, if the vehicle is fully stopped, the force from potential rollaway alone will not harm the transmission either.
15
0
Share

What Causes a Car to Run Unsteadily?

The reasons why a car runs unsteadily may include unbalanced tires, deformed steel rims, or unbalanced and deformed drive shafts. Unbalanced Tires: However, the owner must promptly perform a wheel alignment to maintain balance and avoid car jolts. Deformed Steel Rims: Therefore, it is necessary to go to a specialized repair shop for inspection. This generally occurs in vehicles that have been used for a long time. For regular cars, tire balancing is required when replacing tires or installing new steel rims. When the weight distribution is uneven, the steering wheel is prone to shaking. The shaking of the car body can affect the comfort and control judgment of the vehicle. Unbalanced and Deformed Drive Shafts: Thus, once the chassis becomes deformed, the car may experience abnormal shaking.
10
2
Share

What are the symptoms of a faulty air brake chamber?

The symptoms of a faulty air brake chamber include oil leakage at the connection between the chamber and the oil pipe, a soft feeling when stepping on the brake pedal, and the steering wheel noticeably pulling to one side after pressing the brake pedal. Brake fluid leakage: Since brake fluid is the force transmitter, without it, force cannot be transmitted, resulting in no braking. Brake fluid leakage is uncommon because the pipelines are mostly made of metal and are not prone to rupture. However, a small section of the pipeline near the brake chamber is made of rubber, so leaks often occur here due to rubber aging or external force-induced rupture. Brake pad failure: Brake pads may be worn out or their friction coefficient may decrease due to overheating. Since brake pads are the terminal executors of braking, their absence naturally leads to brake failure. On long downhill sections, prolonged braking can cause surface overheating, significantly reducing the friction coefficient and preventing the generation of sufficient friction force, thus resulting in braking failure.
8
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.