Frequently Asked Questions

How do I choose the right tire for my vehicle?

The best tire for your vehicle depends on your vehicle type, how you drive, and the conditions you drive in. Start by checking the tire size listed on your vehicle's door jamb or owner's manual. From there, consider the type of tire you need—such as all-season, all-terrain, highway, or performance tires. If you frequently drive in harsh weather or off-road conditions, choose a tire designed specifically for those environments. When in doubt, your local tire dealer can recommend options that match your driving habits and budget.

What do the numbers and letters on the tire sidewall mean?

The numbers and letters describe the tire’s size and capabilities. For example, in P225/65R17 102H:

  • P indicates a passenger vehicle tire.
  • 225 is the width in millimeters.
  • 65 is the aspect ratio (sidewall height compared to width).
  • R means radial construction.
  • 17 is the wheel diameter in inches.
  • 102 is the load index (how much weight the tire can carry).
  • H is the speed rating (maximum safe speed under load).

These markings help ensure proper fit, safety, and performance.

How long can I safely use my tires?

Most tires last between 5–7 years, depending on driving habits, maintenance, and climate. Even if the tread appears fine, rubber breaks down over time. You should have your tires professionally inspected every year after they reach 5 years of age. Replace them immediately if they show signs of cracking, bulging, uneven wear, or low tread depth (2/32" or less).

What is the manufacturer warranty on your tires?

Our tire warranties typically cover defects in materials or workmanship for the life of the original usable tread. Some products may also offer mileage warranties or satisfaction guarantees. The warranty does not cover damage from road hazards, improper maintenance, accidents, or misuse. To make a claim, bring the tire to an authorized dealer for evaluation, along with proof of purchase.

How often should I rotate and balance my tires?

Rotating tires every 5,000–7,500 miles helps them wear evenly and last longer. Balance your tires whenever you rotate them or if you notice vibration at certain speeds. Proper rotation and balancing improve ride comfort, fuel efficiency, and tread life.

Why is proper tire inflation important, and how do I check it?

Correct tire pressure ensures better handling, longer tire life, and improved fuel economy. Underinflated or overinflated tires can wear out faster and reduce safety. Check your tire pressure once a month using a gauge when the tires are “cold” (before driving). Compare the reading to the recommended pressure listed on your vehicle’s door jamb—not the number printed on the tire.

Where can I buy Thunderer tires?

You can purchase our tires at a local tire shop or installer. Once purchased, the tires can be shipped directly to that installer. You’ll then schedule an appointment for mounting, balancing, and installation at your convenience.

How do I read and understand tire treadwear, traction, and temperature ratings?

These are part of the UTQG (Uniform Tire Quality Grading) system:

  • Treadwear indicates how long the tire’s tread is expected to last compared to a reference tire (higher numbers generally mean longer life).
  • Traction grades (AA, A, B, C) measure grip in wet conditions.
  • Temperature grades (A, B, C) show how well the tire resists heat buildup.

These ratings help you compare tires for durability, safety, and performance.

What should I know about tire storage if I buy a spare or extra set?

Store tires in a cool, dry place away from direct sunlight, heat sources, or chemicals. Keep them off the ground on a clean surface or rack. If storing them for several months, wrap them in airtight plastic bags to reduce exposure to oxygen and ozone. Temperature extremes can accelerate rubber aging, so indoor, climate-controlled storage is best.

What should I do if my tire gets damaged — can it be repaired?

Some punctures can be safely repaired—typically small nail holes in the tread area. Damage to the sidewall, large punctures, cuts, or bulges cannot be repaired safely and require tire replacement. If your tire is damaged, remove it from use and have it inspected by a professional as soon as possible.