Is 400 a good treadwear rating?
A tire with a 400 rating should last twice as long as one rated 200, assuming both are driven under the same conditions. But the actual mileage varies by brand, vehicle, and how you drive. For example, a tire with a 400 rating might last 40,000 to 60,000 miles, depending on usage. So a rule of thumb (again, looking at all seasons) is to take the treadwear rating and add two zeroes, and that’s a ballpark for how many miles the tire will last. If it has a 420 rating, that’s about 42,000 miles (though probably has a warranty for 50k). If it has an 800 rating, that’s about an 80,000 mile tire.The 400 is tread wear which represents the tire’s comparative wear when measured against the governments mandated tire, which is rated at 100. So the tire rated at 400 would wear four times longer than the government’s mandated tire. However, please don’t link treadwear grades with your projected tire mileage.For example, a tire with a 400 rating might last 40,000 to 60,000 miles, depending on usage. A 600-rated tire might reach 70,000 miles or more, but only if it’s properly maintained. So yes, higher treadwear usually means more miles — but it’s not a guarantee.For example, a tire with a treadware index of 50 will wear 2 times faster than a normal tire whereas a tire with a treadwear index of 420 will wear 4. REMEMBER: The higher the treadware index, the longer the life of the tire.Tires with medium treadwear are therefore excellent for everyday driving. Most all-season tires fall in this category, especially between 300 and 500 treadwear.
How much tread do you lose per 1000 miles?
Proper tyre maintenance, including ensuring they are correctly inflated and regularly rotated. The type of driving, with city driving putting more stress on tyres than highway driving. How long will 2mm tyre tread last? Once your tyre has reached 2mm of tread, the best you can hope for is around 1,000 miles. While there’s no hard-and-fast rule, and no federally mandated safety guidance on when a tire should be (ahem) retired, many carmakers and experts advise replacement between five and six years from the manufacturing date.We recommend replacing tires aged 6-10 years, no matter how much tread remains. When it comes to replacing tires, things can be a little unpredictable. Mileage, condition and routine maintenance all contribute to the tire’s safety and usability. You should replace them if you think they may have compromised integrity.Factors that influence how long a tire lasts Miles driven, road conditions, driving style, maintenance and age all affect how long a tire lasts. Tires naturally wear the more they are driven and worn out tires provide reduced traction compared to those with adequate tread, especially in adverse weather conditions.This perishing happens over time, and it is estimated that the maximum safe lifespan of a tyre is around five years. In normal usage, the tyre tread is likely to wear down before the rubber degrades, meaning that the tyre is probably going to be replaced before the natural shelf life of a tyre is reached.
How many miles is a 420 treadwear rating?
So a rule of thumb (again, looking at all seasons) is to take the treadwear rating and add two zeroes, and that’s a ballpark for how many miles the tire will last. If it has a 420 rating, that’s about 42,000 miles (though probably has a warranty for 50k). A good UTQG treadwear rating is generally 300 or above, indicating the tire is expected to be worn three times, as well as the baseline tire set by the National Highway Traffic Safety Administration (NHTSA).Most tires used on passenger vehicles have a treadwear rating that falls between 200 and 500. Tires in this bracket offer a great mix of grip and safety, matched with enough longevity to last multiple years if not driven hard every day. Tires with medium treadwear are therefore excellent for everyday driving.What does Treadwear 440 mean? A treadwear rating of 440 indicates that the tire is expected to wear out approximately 4.
How long will 500 treadwear last?
A tire with a 500 treadwear rating is expected to last approximately 50,000 miles under standard conditions. However, factors like driving style, road conditions, and vehicle type can affect actual mileage. In practical terms, a tire with a tread life expectancy of 440 should have a longer lifespan and wear down more slowly, making it a good choice for drivers looking for durability and longevity.
Is a 300 treadwear rating good?
A good tire treadwear grade is generally considered 300 or above, as per NHTSA. Tire ratings above 400 are generally preferred for long tread life. Drivers looking for performance usually opt for lower ratings between 100-300. Higher Ply Ratings Are Always Better: While higher ply ratings provide greater strength and load capacity, they are not always necessary for every vehicle. Choosing tires with a higher ply rating than needed can lead to a harsher ride and reduced fuel efficiency.