A speed rating of T indicates that the tire can be safely driven up to 118 mph. A tire with an H rating has a higher limit — 130 mph — which means it can be safely driven faster than the tire with the 94T code. Manufacturers may produce identical tire models with different speed ratings.
similarly, How do you read a tire date code?
The first two numbers indicate what week of the year it was made (out of 52 weeks per year), and the second two numbers represent the year. For example, 5200 would reveal that a tire was manufactured during the 52nd week of the year 2000.
on the other hand, What is an H rated tire?
Tires with a maximum speed capability higher than 300 km/h (186 mph), require a “ZR” in the size designation.
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Tire Speed Rating Chart.
| SPEED SYMBOLS | ||
|---|---|---|
| H | 210 | 130 |
| V | 240 | 149 |
| W | 270 | 168 |
| Y | 300 | 186 |
also, Does speed rating matter on tires? The speed rating tells you the speed the tire can safely maintain over time. A higher speed rating usually means you will have better control and handling at higher speeds – and that the tire can take the extra heat. As a general rule, tires with higher speed ratings also handle better at slower speeds.
Can I put a higher speed rated tire on my car?
Experts frown on the practice of mixing and matching lower and higher speed-rated tires on one vehicle. It can lessen your car’s ability to handle wet road conditions. Additionally, your maximum mph will be based on the lowest speed-rated tire you have.
How many years do tires last on average?
It may be tentative, but tires do have an expiration date. There is a general consensus that most tires should be inspected, if not replaced, at about six years and should be absolutely be swapped out after 10 years, regardless of how much tread they have left.
Do tires get harder with age?
When tires get old, the rubber loses is elasticity (gets hard) and then when the tire heats up, the tread tends to blow right off. … Also, it doesn’t matter whether or not the tire has been exposed to the elements, the rubber still gets hard over time.
How do I identify my tires?
Tires made in the United States have the DOT serial number located on the inside sidewall near the rim. The letters “DOT” are followed by eight to thirteen letters and/or numbers that identify where the tire was manufactured, tire size and the manufacturer’s code, along with the week and year the tire was manufactured.
Are H rated tires good?
Tires with higher speed ratings generally have better steering response and cornering grip than lower-speed rated tires, in addition to being capable of higher speeds. So if your car originally came with H-rated tires, that’s what you should replace them with.
What is T speed rating?
T — Up to 118 mph. H — Up to 130 mph. V — Up to 149 mph. W — Up to 168 mph. Y — Up to 186 mph.
What does 88T mean on a tire?
185/70 R14 (88T) is a tyre that is 185mm wide, 70 is the aspect ratio, the depth of the sidewall as a %age of the width, in this case 70% and on a 14 inch rim. The 88T is the load and speed rating. 88T means the tyre can sustain a load of 560kg at a max speed of 190kph (119mph).
What is the best speed rating for a tire?
Everyday passenger vehicle tires can be S speed rated, but S tires often prioritize specific performance or function. An M speed rating indicates the tire has been approved for speeds up to 87 mph (140 km/h) and an N is approved for speeds up to just 81 mph (130 km/h) under optimal conditions.
What does it mean when a tire does not meet speed rating?
Your actual speed capacity may be less than a tire’s rating. The rating indicates a new tire’s performance in tightly controlled lab settings, not the open road. Tire condition, inflation level, extra cargo, road surfaces and weather are everyday limits that play into a tire’s maximum safe speed.
What is a good speed rating for tires?
A Y-speed rating on the tire is an indication that it is safe to use the tire for a vehicle with a top speed of 186mph, while (Y)-speed rating specifies that the tire is perfect for a vehicle with a top speed of 186mph.
Should all 4 tires have same speed rating?
In general, all tires on the vehicle should be the same speed rating and replacement tires should have a speed rating equal to or greater than the speed rating of the OE tires.” “Tires with different speed ratings may vary in ride, handling and/or other performance characteristics.
What happens if you go over tire speed rating?
Safety advocates and tire experts say that habitually driving faster than a tire’s rated speed can generate excessive heat that damages the rubber, with potentially catastrophic results. … Tires were a factor in 198 of those crashes and 223 deaths.
Should I replace all 4 tires?
Type of Vehicle
If so, most vehicle manufacturers and the Tire Industry Association (TIA) recommend that you always replace all four tires at the same time. That’s because the reduced diameter of the lower-tread tires causes them to spin faster than the new one.
Do tires expire if not used?
If not used, tires last for 6-10 years, depending on the storage and environmental conditions. … The National Highway Traffic Safety Administration (NHTSA) and official manufacturers suggest a tire is only 100% safe to use until it turns 5-6 years old.
How much is 4 new tires?
According to recent reviews, Angie’s List members report paying an average cost of $637 to replace four tires, with a range of $525 to $725. According to CostHelper, a standard, all-season tire costs between $50 and $200 each with an average price of $80 to $150.
Can I use 10 year old tires?
While there’s no federally sanctioned safety guidance on when a tire is too old to be safe, many carmakers recommend replacement at six years from the date of manufacture. Old tires have been the culprit in fatal accidents. … An analysis of the used tire revealed that it was nearly 10 years old.
Do tires get old if not used?
If not used, tires last for 6-10 years, depending on the storage and environmental conditions. … The National Highway Traffic Safety Administration (NHTSA) and official manufacturers suggest a tire is only 100% safe to use until it turns 5-6 years old.
Do tires have individual serial numbers?
The serial number for your car’s tire is located on the sidewall of the tire; however, one side may have only a partial serial number on it, so you need to take the tire off to be sure your have the whole number.
How do you decode tires?
The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire’s width. The bigger the aspect ratio, the bigger the tire’s sidewall will be.
How do you date old tires?
The first two digits of the date code tell you the week that the tires were built, and the last digit tells you the year. For example, a date code such as 306 would let you know that the tire was built in the 30th week of a year ending in 6.
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