What Is the Best Speed Rating for Tires?
The best speed rating for tires is the rating specified by your vehicle manufacturer, or a higher rating that preserves the required tire size and load index. For most drivers, the correct OE rating offers the intended balance of handling, comfort, heat resistance, tread life, and cost; a higher letter is not automatically safer or […]
How Big Are 275 55R20 Tires?
A 275/55R20 tire is approximately 31.9 inches tall, 10.8 inches wide, and built for a 20-inch wheel. Its calculated sidewall height is 5.95 inches, making it a “32-inch” tire in common truck and SUV terminology, although the measured diameter can vary slightly by brand, construction, tread design, and approved wheel width. Key Facts at a […]
Who Makes Good Tires: 7 Brands Ranked by Driving Need
Michelin, Continental, Bridgestone, Goodyear, Pirelli, Hankook, and Yokohama all make good tires, but no brand wins every category. Michelin is usually the strongest all-around choice for touring tires, Continental often leads wet-road performance, Bridgestone is a leading winter option, Goodyear and BFGoodrich suit trucks, and Pirelli is strongest for high-performance applications. Key Facts at a […]
Where to Get Tires Mounted and Balanced
You can get tires mounted and balanced at a national tire chain, warehouse club, independent repair shop, mobile tire service, or dealership service center. The best choice depends on whether you are buying tires there, bringing online tires, driving a specialty vehicle, and prioritizing price, speed, equipment, or warranty support. Key facts at a glance […]
Is a 275 Tire a 33?
A 275 tire is not automatically a 33-inch tire because 275 describes section width in millimeters, not overall diameter. A 275/70R18 measures approximately 33.16 inches tall, and a 275/60R20 measures approximately 32.99 inches, while other 275 sizes may be 32 or 34 inches. Key facts at a glance What does 275 mean on a tire? […]
How Tall Is a 325 Tire?
A 325 tire can be approximately 28.7 to 35.4 inches tall, depending on its complete size code. The number 325 specifies nominal width, not height. For example, a 325/30R21 has a calculated diameter of 28.7 inches, while a 325/60R20 measures about 35.4 inches by the standard sizing formula. Key facts A 325 tire is nominally […]
What Tires Are Made in the Usa: DOT Codes and Brands
Tires made in the USA include selected models from Goodyear, Cooper, Michelin, BFGoodrich, Bridgestone, Firestone, Continental, General, Yokohama, Hankook, Toyo, and Pirelli. Manufacturing varies by model, size, and production date, so the tire’s Department of Transportation identification number, or DOT TIN, is the reliable way to verify its factory. Key facts at a glance A […]
How to Find Tire Age: Decode the DOT Code
To find tire age, locate the DOT code on the tire sidewall and read its final four digits as week and year of manufacture. A code ending in 2423 means the tire was produced during the 24th week of 2023. Tire age is separate from tread depth, mileage, and whether the tire has been driven. […]
How Often Should Tires Be Changed? A Safety-Based Guide
Car tires should be changed when tread reaches 2/32 inch (1.6 mm), when damage makes the tire unsafe, or when age-related deterioration appears. Most tires also need replacement around 6-10 years from manufacture, even with usable tread, while typical service life is approximately 40,000-70,000 miles depending on tire type, maintenance, climate, load, and driving style. […]
How to Check Tread Wear: The 4/32-Inch Safety Rule
To check tread wear, inspect every tire at the inner, center, and outer tread zones, then measure the lowest groove depth with a tread-depth gauge. A reading of 4/32 inch or less indicates substantially reduced wet-road reserve, while 2/32 inch is the common U.S. legal replacement threshold. Check tread condition, damage, and wear pattern together. […]