What does 195 65R15 91h mean?
R – radial 15 – rim diameter 91 – load index H – speed index Talk tyres with us here at #Uckfield Garage! A: Hello, the number stands for the load index (91 means tires tested up to 1358lbs), and the speed index (H rated tires tested up to 130mph, T tested up to 118mph).The difference is the speed rating or what the tires are tested up to for speed. A T speed rated tire is tested up to 118mph while H is tested up to 130mph. A difference in this rating should not cause you issue unless you are hitting max speeds or if your vehicle is all wheel drive.H – The load index (91) is the tyre size’s assigned numerical value used to compare relative load carrying capabilities. In the case of our example the 91 identifies the tyres ability to carry approximately 615 KG per tyre. The higher the tyre’s load index number, the greater its load carrying capacity.
What does 195 65 R15 mean on a tire?
Let’s take a common tyre size as an example: 195 65 R15 91 V: 195 – this is the width of the tyre in millimetres. This is also known as the aspect ratio. These numbers show the aspect ratio, which is the tire sidewall height in percentage to width of the tire. The width of Sidewall is directly proportional to the aspect ratio, a 70 aspect ratio means the sidewall height is 70% of 265mm while 65 aspect ratio means it is 65% of 265mm.
What does 91h mean on tire size?
A: The 91 is the load index (how much weight the tires can handle). H and T are speed ratings (what speed the tires can handle). H = 130 mph; T = 118 mph. Thank you for your interest. If a tyre has a load index of 91h, for example, this means that the load on this tyre must not exceed 615 kg. The letter h, on the other hand, is the speed rating, which is 210 km/h.Exceeding your tire’s speed rating can cause excessive heat buildup, which may lead to tread separation, blowouts, or tire failure. It’s unsafe and should be avoided.Typically, the higher the speed rating, the better the grip and stopping power, but the lower the tread life. You can always increase the speed rating of the tires on your vehicle for improved performance, but can never decrease it without reducing the vehicle top speed to that of the lower speed rating selected.You can fit tyres with a higher speed rating than recommended by your vehicle’s manufacturer.
What is 195 65R15 91V?
Tyres for your tyre size 195/65R15 91V The 195/65R15 91V tyre has the following features: the first three digits 195 refer to the width of the tyre in millimetres. The second two-digit number 65 refers to the ratio between the height of the sidewall and the width of the tyre. R – radial 15 – rim diameter 91 – load index H – speed index Talk tyres with us here at #Uckfield Garage!
What does r in R15 mean?
R stands for “radial” and the last two figures 15 indicate the wheel diameter in inches. The size ends with the load index 88, which is the maximum weight that each wheel can support, and the speed rating h, which is the maximum speed at which the tyre is approved for use. The main difference between 91v vs 91h tires is definitely speed. H speed-rated tires have a capability of 130 mph, while the v has a maximum speed of 149 mph.Load Index: Represents the maximum weight a tire can carry at maximum inflation. A load index of 89 translates to a capacity of 1,279 lbs per tire, whereas a 91 can handle 1,356 lbs. Speed Rating: The letter (H in this case) indicates the maximum speed the tire can sustain.