轮胎基本知识

It is recommended that the replacement tire size speed rating be equal to the O.E. tire size speed rating. If a lower speed rated tire is selected, then the vehicle top speed becomes limited to that of the lower speed rating selected. The customer must be informed of the new speed restriction. It is quite common and permissible during winter driving to use a winter tire with a lesser speed rating than the O.E. tire. Again the customer must be informed as mentioned above.

Winter tires are not assigned tread wear ratings, wet traction or temperature ratings. Winter tires are designed for cold weather use only, usually when average daily temperatures are consistently approach freezing. While the tire operates just fine in warmer conditions, it is not recommended for summer usage.

Treadwear and temperature ratings are not primary attributes for winter tires and usage is regional.

Avoid used tires - you can never know what hazards and abuse a previously owned tire has suffered. Internal damage can lead to dangerous tire failure.

Please remember, Plus Sizing must be taken with proper care. When replacing tires with optional size designations, be sure to check vehicle manufacturer’s recommendations (found in owner’s manual or on door sticker). Interchangeability is not always possible because of difference in load ratings, tire dimensions, wheel well clearance and rim size. Contact a participating tire retailer that is trained to assist you with plus sizing.

The rim width range is extremely important. This range represents proper rim widths that will assist the tire/wheel assembly in meeting its performance potential. To achieve the best balance between ride, handling and tread wear, select a rim width in the middle of the manufacturer’s range. To improve cornering traction and steering response, choose a rim at or near the maximum recommended width. The wider the rim width, the straighter the sidewall and the quicker the steering response. Conversely, using a rim width at the low end of the range will cause the tire to balloon or curve out, slowing steering response. Refer to our website for tire specifications.

Never try to mount your own tires. Tire mounting is a job for trained professionals who have the proper equipment and experience. If you try to do it yourself, you run the risk of serious injury to yourself as well as possible damage to the tire and rim.

Avoid the use of petroleum based tire cleaning products as they can exhaust the tire's oxidation and weathering agents within the rubber compounds, resulting in cracking.
Use only non-petroleum based products or plain soap and water for tire cleaning.

Yes. Here are several tips to help increase the life of your tires:
Don’t speed. High speeds can generate excessive heat, which can increase the rate of tire wear.
Drive the safe, legal speed limit.
Avoid fast turns on curves and around corners.
Avoid fast starts and panic stops.
Don’t ride on the edge of the pavement or drive over curbs, potholes, or other obstructions.

Yes. Here are several tips to help increase the life of your tires:
Don’t speed. High speeds can generate excessive heat, which can increase the rate of tire wear.
Drive the safe, legal speed limit.
Avoid fast turns on curves and around corners.
Avoid fast starts and panic stops.
Don’t ride on the edge of the pavement or drive over curbs, potholes, or other obstructions.

Special treatment is not required for your new tires. However, drive carefully while you get accustomed to them. You may feel a difference when accelerating, braking, cornering or possibly driving in wet conditions.

We cannot test all products being marketed today, and do not certify or endorse any of these after-market products for efficiency or compatibility.
Because some of these products may degrade the inner liner of tires, caution should be taken. The long term effect of these products is unknown (chemical reaction when exposed to pressure, temperature and time).
Because some of these products may be flammable, we strongly urge you to advise a tire dealer of the use of these products before having the tire and wheel serviced. Failure to do so could lead to serious injury or death.
Please refer to the warnings and instructions provided by the manufacturers of these products regarding their use.
We neither approve nor disapprove the use of these products.

Mixing speed ratings on a vehicle is not recommended. If tires of different speed ratings are mounted on a vehicle, the lower speed-rated tires should be placed on the front axle. This is to prevent a potential oversteer condition. Vehicle handling may be affected, and the vehicle’s speed capacity is now limited to the lowest speed-rated tire.

For best all-around performance, the same type tire should be used on all four-wheel positions. Tires of different size designations, constructions, and stages of wear may affect vehicle handling and stability. NOTE: Some vehicles are intentionally fitted with different size tires on front and rear.
For four-wheel drive vehicles, if no instructions for tire mixing appear in the vehicle owner’s manual, adhere to the following guidelines:
Do not mix sizes. All four tires must be branded with the same tire size.
Do not mix radial and bias-ply tires. All four must be either radial or bias-ply.
Be sure that the outside circumference of all four tires is within 1” of each other.
Do not mix tread patterns, such as all-terrain and all-season.

When replacing speed-rated tires, you must use replacement tires with ratings equal to or greater than those of the original equipment tires, if the speed capability of the vehicle is to be maintained. The handling of a performance vehicle may be different when the replacement tires are not the same speed rating. Refer to the vehicle owner’s manual to identify any tire speed rating restriction that could affect operation of the vehicle.

Never choose a tire that is smaller in size or has less load-carrying capacity than the tire that came with the vehicle. Tires should always be replaced with the same size designation — or approved options — as recommended by the vehicle or tire manufacturer. The correct tire size can be found on the door placard of the vehicle or by consulting your local authorized Hankong retailer. Your current tires’ size can be found by reading the markings on the sidewall.

All new replacement tires are backed by the Hankong promise plan, which includes a 60-day Satisfaction Guarantee, Flat Tire Changing Assistance and a Limited Mileage Warranty. Take the tire to your local authorized Hankong dealer and have them properly inspect the tire. Tell the dealer what you are experiencing so they can diagnose the problem.

Hankong recommends replacing all four tires at the same time, however if replacing only two new tires, be sure that the new tires are the same size & tire type as the current tires and that the dealer always installs the new tires on the rear axle of the vehicle. Click here for more information.

Why Put the 2 New Tires on the Rear Axle?

The New tires will provide better wet grip than your half-worn tires. It will help reduce the potential for the vehicle to fishtail and lose stability in wet conditions