What does 91W mean on a tire?
For example, 205/55 R16 91W denotes a W speed rating, which means the tyre can handle speeds of up to 168mph (assuming it is not overloaded). H-Rated Tires: This is a perfect, average tire for most sedans and commuter vehicles. It might not seem to fit in our chart, but the tire speed rating “H” is rated for up to 130 mph. T-Rated Tires: This tire is often recommended for family sedans and vans. It’s rated for up to 118 mph.This means that a tire with a V-rating, for example, can be driven at 149 miles per hour until it wears out! Less frequently seen ratings are Q 99 mph and R 106 mph- used in some light truck tires. The W rating replaced what was once Z, which was anything above 149 at the time, and is now limited to 168 mph.So, what does tyre rating W mean? It means that you have a car that is capable of driving safely at high speeds up to 168 mph. Still a little unsure? Let the professionals help.This can range from 75-105 for passenger vehicles. H” represents the speed rating, which is how fast the tire can safely go based on its load capacity. This rating is ranked from A-Z, and with our example, a tire with an “H” rating can reach a maximum speed of 130 mph.It’s a speed rating on the tires; in this case H meant a max speed of 130 MPH where W means a max speed of 168 MPH.
What does 215 45zr17 91W mean?
Section Width in millimeters. Aspect Ratio. R – Designates the tire has radial construction. Wheel Diameter. Load Index.The R in 225/45/R17 indicates that the internal structure of the tyre is radial while the 17 shows that the wheel to which the tyres will be fitted needs to be 17 inches in diameter. The 225/45/R17 tyre pressure in most models should be in the region of 32 PSI or 2.
What is the difference between 215 45 17 and 225 45 17?
The Width Factor: 215 Tyre Size in Inches A 215 tyre converts to approximately 8. This means that the 225 tyre is slightly wider than the 215 tyre, albeit the difference may seem subtle on paper. Using our example again, 215/60R16 95V, 215 means that the tyre is 215mm wide from the inside to the outside edge across the tyre tread. The profile, otherwise known as the aspect ratio, is 60 in our example.
What does 91S mean on a tire?
The 91S represents the tire’s Service Description. A Service Description identifies the tire’s Load Index (91) and Speed Rating (S). The letters W and Y on tyres indicate their speed ratings. W means the tyre is rated for speeds up to 168 mph, while Y is rated for speeds up to 186 mph.The last two numbers e. The Load Rating of the tyre. The second and final letter e. W. The Speed Rating which indicates the tyre’s maximum speed at full load.T and 102H are service descriptions. Load Index, what this means is, the tire is capable of carrying weight up to, 1,874 lbs per tire. The T and H are speed Ratings, this indicates that a tire is capable of speeds up to, 118 mph and 130 mph (respectively).The alphanumeric codes like 91V and 95V provide vital information about the weight each tire can safely carry and the maximum speed it can endure. For example, the number 91 corresponds to a specific load capacity, while the letter V signifies a speed rating of up to 149 mph (240 km/h).
What size tire is a 215 45 r17?
R17 tires have a diameter of 24. The sidewall of the tire is 3. This means a 215/45R17 tire will make make 821 revolutions per mile, or 509 revolutions per kilometer. Aspect ratio So if the tire markings indicate P225/45R17 91V, it means that the height of the sidewall is 225 multiplied by 0. The number 45 means that the height is equal to 45 percent of the width. Bigger tire ratio indicates bigger and taller tire sidewall.