The 113R in the size description designates the load index (113) and the speed rating (R). In this example the load index of 113 indicates the tire will carry a maximum load of 2,535 pounds at maximum inflation and the R speed rating indicates that tire can perform at speeds up to 106 MPH.
What does S mean in tire?
S—This is the tire’s speed rating. This is the maximum speed your car can reach before the tire’s rubber risks being damaged, and each letter represents a different speed. “S” is 112 miles per hour. Just because your tire can function up to this speed, though, does not mean you should speed on the road.
What is tire load index 113?
The higher this number, the higher the weight each tire is rated to carry. For example: A tire with a size of “275/55R20/113T” has a load index of 113. A tire with a size of “225/65R17/102H” has a load index of 102. A tire with a size of “205/65R15/94V” has a load index of 94.
What is speed rating S on a tire?
What does 113R mean on tires? – Related Questions
What is load range S?
The load range indicates the heaviest load the tire can handle in pounds. Maximum tire pressure indicates the highest you can inflate the tires, but do not fill your tires to this pressure. It reflects the highest pressure the tire can handle when carrying its maximum load.
What is the difference between 121S and 115T?
The 115T signifies that the tire has a 4ply standard load sidewall. The 121S signifies a 10 ply load range E sidewall. The standard load tire is best for a half ton truck, whereas the load range E sidewall is best for a 3/4 and 1 ton truck.
What is difference between S and T on tires?
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.
Tire Speed Rating Chart.
| SPEED SYMBOLS |
| S |
180 |
112 |
| T |
190 |
118 |
| U |
200 |
124 |
| H |
210 |
130 |
What speed is Z rated tire?
SPEED RATING Z
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).
What is speed rating S and T?
S — Up to 112 mph. T — Up to 118 mph. H — Up to 130 mph. V — Up to 149 mph. W — Up to 168 mph.
What is speed rating H vs S?
The most popular, S, T, and H, are rated for 112, 118, and 130 mph, respectively. Traditionally, most family cars have used S- and T-rated tires, while tires rated H and higher have mostly been available only in sports cars or upscale sports sedans.
What is speed rating Y vs Z?
Y ratings are for exotic sports cars with a 186 mph (300 km/h) speed limit, while the Z rating is for 149 mph (240 km/h). Tires with a Z speed rating are used on race tracks, although it’s prevalent on ordinary vehicles as well. Exceptionally high speed rated tires are used on high performance vehicles.
What does 112t mean on a tire?
Though not an absolute, the general rule is: The higher the speed rating, the better the tires will corner and stop, the faster they’ll wear out, and the more they’ll cost. Common speed ratings on tires are as follows: R=106 (mph) S = 112, T = 118, H = 130, V = 149, W = 169 and Y = 186.
Do Y rated tires wear faster?
There is no relationship between the speed rating and the longevity of the tire.
What is the lowest tire rating?
Tire speed ratings range from A (the lowest) to Y (the highest). But the chart is not completely in alphabetical order. For example, H is between U and V, with the common perception that H stood for “high performance” at one time.
Are all season tires rated M and S?
The M+S tire rating, or mud and snow symbol, indicates an all season tire. It means that the tire is Mud and Snow rated, showing the tire’s capability to provide traction in wet and light winter conditions. Most all season and all weather tires sport the MS tire rating.
Do all season tires have the M & S rating?
In general, most all-season tires are M+S certified. It is important to note that mud and snow-rated tires are not necessarily winter tires. To qualify as a winter tire, the tire must have both 3PMS and M+S symbols.
What is the best grade of tires?
Most ultra-high-performance tires achieve the best grade: AA. Most car tires get the next best grade of A.
What are the 3 types of tires?
Most car tires fall into three main types: all-season, summer, and winter. Most people buy all-season tires because it’s easier and cheaper than buying one set for the winter and another for summer. All-season car tires deliver a good, well-rounded performance but are never outstanding in any way.