Which is better T or H speed rating?
The “T” or “H” on tires pertain to their speed ratings. A T-rated tire can withstand top speeds of up to 118 mph (190 km/h), while an H-rated tire can support up to 130 mph (210 km/h). It is important to note these markings and stay within those speed limits.
What's better load range D or E?
Expert Reply: Load range D has a capacity of 1,220 lbs at 65 psi, whereas load range E has a capacity of 1,520 lbs at 80 psi. Basically the only difference between the two is the weight capacity.
What is H or V rating on tires?
The most common ratings are S and T (sedans, minivans, light trucks); H (some passenger cars, sports cars, coupes, some light trucks); N, P, Q and R (light trucks); and V, W and Y (high-performance and some electric vehicles). Most winter tires have Q, S or T speed ratings.
What is Load Range E?
Therefore load range simply tells how tough the tire is and the allowable PSI. For example, an “E” load range indicates that a tire is equivalent to a 10-ply construction tire. In realitly, this tire is not built with 10 plies, but rather one or two plies of equivalent strength.
Do I really need Load Range E tires?
A Load Range E tire is recommended, and we would be very careful about airing down too much if traveling at more than crawling speeds. There is still value to running a Load Range E tire on a lightweight off-road vehicle.
Is Load Range E good for towing?
At a minimum, Load Range E tires are capable of safely supporting about 3,000 pounds. So, in the case of a dualie (six wheels), the tires collectively will provide more than sufficient grip for safely towing 18,000 pounds.
What are Z rated tires?
A “Z” rating can mean different things. While it nearly always means a high performance tire for high-performing sports cars, “Z” may actually appear in the middle of a tire's size information. When it does, it represents either a maximum speed of more than 149 mph (240 kph) or 186 mph (300 kph).
How fast can H-rated tires go?
to 130 mphTIRE SPEED RATINGS SAFETYSpeed RatingMaximum SpeedUUp to 124 mphHUp to 130 mphVUp to 149 mphWUp to 168 mph19 more rows
What does XL mean on a tire?
extra loadXL (or Reinforced) tyres are 'extra load' tyres – they indicate that a tyre is reinforced to be able to withstand a higher load than other tyres of the same size.
What load range is F?
Light Truck Tire Load RangesAbbreviationMeaningMax Load PressureLR/CLoad Range C - 6 ply rated50 psiLR/DLoad Range D - 8 ply rated65 psiLR/ELoad Range E - 10 ply rated80 psiLR/FLoad Range F - 12 ply rated95 psi1 more row
What is Load Range C?
Therefore, load range simply defines the tire's toughness and maximum allowable air pressure, as opposed to specific information about the actual plies being used. For example, a "C" load range indicates that a tire is equivalent to a 6-ply construction tire.
Which is better Load Range C or D?
Expert Reply: The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity.
What Is Tire Speed Rating?
A tire’s speed rating indicates the optimal speed that the tire can safely maintain over time. In short, it’s the fastest speed a tire can handle b...
Why Were Tire Speed Ratings developed?
The speed rating system used today was developed in Europe in response to the need to control the safe performance of tires at standardized speeds....
Where Can I Find My Tire Speed Rating?
You can find your tire speed rating in a number of places, typically in the owner’s manual, driver’s side doorjamb, glove box door, and gas tank ha...
How is a tire speed rating determined?
A tire’s speed rating is determined by putting the tire through a series of tests using a specifically designed machine. The goal is to meet or surpass the Economic Commission for Europe (ECE) standards. Some tires even undergo more rigorous tests to comply with the Society of Automotive Engineers (SAE).
What does speed rating mean on tires?
What Does Tire Speed Rating Mean on Tires? The durability of a tire varies depending on the tire’s speed rating, which refers to the maximum speed a tire can safely carry the vehicle’s weight and payload in ideal conditions. Tire speed ratings come in the form of a letter that follows the load index value of the tire.
What are the different types of tires?
There are three different tire constructions, namely radial (R), bias-ply/diagonal (D), or belted (B). Radial is the most common tire construction of the three and features cord plies oriented at 90 degrees to the direction of travel. Bias-ply tires have cords that extend diagonally at 30 or 40-degree angles.
What is the difference between 65 and 17?
Using the same example above, 65 is the aspect ratio of the tire while 17 is the tire diameter (in inches). Aspect ratio, also known as the tire profile measurement, indicates the thickness of the sidewall from the rim to the outside tread of the tire. The 65 value means the tire has 65% of the section width.
What temperature do tires need to be inflated?
Tests are performed inside a room that is heated to a temperature of 77 degrees Fahrenheit.
What does 65 mean on a tire?
The 65 value means the tire has 65% of the section width. Tire or wheel diameter is the overall measurement of the tire from two opposing outer tread points. The letter in between the aspect ratio and tire diameter refers to the internal construction of your tire.
What is a 215 trailer tire?
Meanwhile, the ‘215’ refers to the section width (in millimeters) of the tire from the widest points of the inner and outer sidewalls. Remember that knowing the right trailer tire speed rating is essential, ...
What Is Tire Speed Rating?
A tire’s speed rating indicates the optimal speed that the tire can safely maintain over time. In short, it’s the fastest speed a tire can handle before it no longer performs as designed. The higher the speed rating, the better control and handling you’ll have at higher speeds.
Why Were Tire Speed Ratings Developed?
The speed rating system used today was developed in Europe in response to the need to control the safe performance of tires at standardized speeds. When the rating system was originally developed, the "Unlimited V" category of over 210 km/h (130 mph) was the top speed rating possible.
Where Can I Find My Tire Speed Rating?
You can find your tire speed rating in a number of places, typically in the owner’s manual, driver’s side doorjamb, glove box door, and gas tank hatch. Recent standardization has changed so all ratings except "Unlimited ZR" incorporate the speed symbol and load index as part of every tire’s service description on the tire’s sidewall.
ZR Designation
Tires having a maximum speed capability over 149 MPH may have “ZR” in the size designation. Tires with a maximum speed capability over 186 MPH are required to include “ZR” in the designation. Below are examples of tire sizes with a “ZR” speed rating.
Tire Speed Rating Chart
For tires with a maximum speed capability higher than 240 km/h (149 mph), a "ZR" may appear in the size designation. Tires with a maximum speed capability higher than 300 km/h (186 mph), require a "ZR" in the size designation. Consult the tire manufacturer for maximum speed when there is no service description.
Turn to Tires Plus for Help
Need help understanding the speed rating on tires? Our technicians have got you covered. Bring your vehicle by your local Tires Plus and we’ll help you understand your tire numbers, tire size, and more!
What does tire load index tell you?
The tire load index tells you how much weight your tire can carry , and overloading your tires is never a good idea! When you put too much weight on your tires, you can cause damage and wear them down prematurely. Even worse, you run the risk of experiencing a tire blowout.
How to determine if a tire will work?
To determine if a set of tires will work on your particular car, use the tire load index chart to see how many pounds each tire can support. Multiply that by four (since your vehicle will use four tires). As long as that number is greater than the GVWR of your vehicle, those tires should work.
What is the speed rating of a tire?
An H speed rating indicates the tire is approved for speeds up to 130 mph (210 km/h) under optimal conditions. An H speed rating is at the low end, or at the start of the performance tire speed ratings. H speed rated tires are ideal for sport and luxury coupes and sedans, but not typically considered full-fledged performance vehicles. H speed ratings are common in the grand touring all-season tire category.
What does a Y rating mean on a tire?
Y rated tires have been tested at speeds up to, and in excess of, 186 mph (300 km/h) under optimal conditions. If Y speed rating is indicated without parentheses (as normal), this means the tire is rated up to 186 mph. If the Y speed rating is indicated inside of parentheses, this means that particular tire size and specification has been tested at speeds in excess of 186 mph. A Y speed rating denotes maximum tire performance.
What is a T rating?
A T rating indicates the tire is approved for speeds up to 118 mph (190 km/h) under optimal conditions. T ratings are most associated with standard touring tires, and everyday passenger vehicles like family sedans and minivans.
How fast can a Q tire go?
Q tires are approved for speeds up to 99 mph (160 km/h) under optimal conditions. Tires toward the low end of the speed rating range often prioritize a particular function or unique performance over maximum speed rating. Some studdable and studless winter tires, for example, are Q speed rated.
What is an H speed rating?
An H speed rating is at the low end, or at the start of the performance tire speed ratings. H speed rated tires are ideal for sport and luxury coupes and sedans, but not typically considered full-fledged performance vehicles. H speed ratings are common in the grand touring all-season tire category. W.
What does a W mean on a car?
A W means the tire is approved for speeds up to 168 mph (270 km/h) under optimal conditions. W speed rated tires land firmly at the performance end of the speed rating spectrum. Ws are suitable for performance coupes and sedans, and even street driven exotic sports cars.
What is the grade of winter tires?
Winter tires may carry the letter R (106 mph) or higher. Treadwear grade: A government-required number that indicates a tire’s expected wear. A grade of 300 denotes a tire that will wear three times as well as a tire graded 100. But the numbers are assigned by tire manufacturers, not an independent third party.
How fast is a treadwear tire?
Speed ratings: H (130 mph) and V (149 mph) Treadwear warranty: None or 40,000 to 80,000 miles. Typical wheel size: 15 to 20 inches.
Why are winter tires better than all season tires?
But they typically have faster treadwear than all-season tires because the tread is specifically designed to bite into snow and ice, and the rubber is formulated to stay pliable at freezing temperatures. Also, winter/snow tires generally take longer to stop than all-season tires on cleared roads. We test winter/snow tires suited to cars, performance winter/snow tires for sports cars, and truck winter/snow tires for pickups and SUVs.
What is TPMS in cars?
Tire pressure monitoring systems (TPMS) have been standard equipment in all new cars since model year 2008. Since their introduction, government studies have found that the systems have led to a significant reduction in underinflated tires on the road, benefiting fuel economy and safety.
How long do tires last?
Longer-lasting tires make safety checks more critical than ever. Many of today’s tires last 50,000 miles or more before they wear out, though heat, environment, potholes, and underinflation can weaken them.
What is an all season tire?
All-Season Car Tires. All-season tires come in sizes to fit everything from small cars to light-duty SUVs and pickups. They are for drivers who want year-round traction, long treadwear, and a comfortable ride. But all-season tires typically lack the precise handling and grip of performance tires.
Where are Bridgestone tires made?
Bridgestone. Based in Tokyo, Bridgestone is one of the three largest tire manufacturers in the world. Bridgestone Americas Tire Operations has its headquarters in Nashville, Tenn. The corporation manufactures and markets Bridgestone, Firestone, Dayton, and Fuzion tires, as well as other brands.