What does treadwear 320 mean on a tire?
A treadwear rating, generally in the form of a three-digit number preceding the abbreviation “TW,” is essentially a rough approximation of how soft and sticky the rubber of a tire is. As a rule of thumb, the softer a tire’s rubber compound is, the grippier it is. Treadwear Grades (sometimes called a Treadwear Rating) If the test tire is expected to last as long as the reference tire, it receives a UTQG Treadwear grade of 100. If it is expected to last twice as long, it would receive a grade of 200.Tires with medium treadwear are therefore excellent for everyday driving. Most all-season tires fall in this category, especially between 300 and 500 treadwear.Treadwear is the easiest to decipher as it is a three-digit number that indicates how long tread on the tire will last relative to other tires. In theory and in similar conditions, a tire with a 300 treadwear rating will last three times as long as one with a 100 rating, and so on.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.
How many miles is a 300 treadwear rating?
In general terms a passenger vehicle tire with a 300 UTQG was not designed for longevity. You will generally see a 300 UTQG on tires which are high performance tires or are simply off lesser quality. Such a tire will usually only “last” approximately 15k to 30k miles. Tyre Age when buying new tyres Tyres are considered to be ‘new’ and are suitable for retail sale for, up to 5 years from the original date of production with recommended storage guidance from tyre manufacturers. The industry standard for tyres, based on the German BRV recommendation, is the ‘5 year rule’ for new tyres.For the average set of tyres, it’s reasonable to expect that tyres last for about 40,000km. The average driver can expect their tyres to last 2 – 3 years. Drivers who treat their tyres kindly with good driving habits may be able to extend them to 80,000km while the harsher driver may only get 15,000km.
How many miles will 100% treadwear last?
The standard is set so that a rating of 100 is equal to 30,000 miles. The actual rating is a percentage of 30,000 miles. A tire rated at 200 has a projected tread life of 60,000 miles. A tire rated at 50 has a projected tread life of 15,000 miles. Generally, tyres with 3mm of tread depth may last between 10,000 and 20,000 miles. Actual lifespan can vary widely depending on factors like driving style, tyre type, road surface, and maintenance.You can expect around 1,000 miles out of your tyres if they’re down to 2 mm of tread. City driving is likely to wear tyres down quicker than motorway driving.
How much tread is lost per 1000 miles?
We found that the deterioration rate of tire tread for vehicles is approximately 0. Thus, a vehicle driven the average of 10,000 miles per year would deteriorate 2 /32” of tread. Most tires last 40,000–60,000 miles depending on driving style, road conditions, and care. Always check tread depth—once it’s under 2/32 inch, it’s time for replacement. Rotate, align, and maintain pressure to extend lifespan. Replace at least every six years, even with good tread.Tires with 3/32 of an inch tread depth have reached the end of their safe operational life. Their road grip diminishes significantly, especially in wet conditions. Experts from Tire Rack indicate that tires with less tread depth require longer stopping distances, increasing collision risks.Specialists suggest replacing a tire when the depth of the track is less than 4/32 of an inch. Use a penny to check the tread depth of the remaining three tires. If it is noticeably lower than the tread on another tire, you will have to change all four to bring them back to even treads.
Is 300 treadwear good?
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). The label of UTQG represents a tire’s Treadwear, Traction and Temperature resistance. Traction and temperature resistance ratings are specific performance levels, while treadwear ratings are assigned by manufacturers following tests conducted and are reliable when comparing tires of the same brand.
How long will 400 treadwear last?
While not even the best UTQG-rating tires can be completely trusted, the tire tread wear ratings guide is actually quite straightforward. To estimate a tread life based on treadwear ratings, you will need to multiply the number by 1000. Therefore, based on simple math, a 400-rated tire should last for 40,000 miles. 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.