What does 91V mean on tyres?
For instance, the index “91V” indicates a maximum speed of 240km/h (based on a table), and the letter “V” is an alphabetical index, by which A indicates the lowest and Y the highest speed class. The H/V is the speed rating. Max speed for H is 130mph, V is 149mph. These ratings degrade as the tire degrade. The load rating means the 91 can take a load of 1354lbs and 94 is 1477lbs per tire.SPEED RATING V Once the highest speed rating a tire could have, “V” used to represent a maximum of 149 mph (240 kph) or more. Nowadays, it means 149 mph but no higher.H-rated tires only allow you to rev up within a maximum range of 130 mph. In comparison, V-rated ones extend the performance of tires up to 149 mph. The distinction comes from the theoretical aspect of speed and the driving experience. One thing is certain: swapping the two is not good for the vehicle or the driver.
What is the speed limit on a 91V tyre?
For example, if the tyre has a speed rating of V, then the maximum speed it can sustain is 149 mph (240 km/h). When the speed rating system was first developed, the highest speed rating was the unlimited “V” rating. This was for tires whose maximum sustained speed was 149 mph (240 kph) or more.V – Speed ratings are represented by letters ranging from A to Z. Each letter coincides to the maximum speed a tire can sustain under its recommended load capacity. For instance, V is equivalent to a maximum speed of 149 mph.
What is the speed of 91V tyre?
The “V” index in 91V marking corresponds to a maximum speed of 240 km/h. The manufacturer recommends the operation speed 10-15% less than the maximum value. These two speed ratings are most frequently made for performance tires, but which one is better? 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.
What is the tyre pressure for 205 55 R16 91V?
However, as a general guideline, the recommended tyre pressure for 205/55 R16 tyres typically falls within the range of 30 to 35 PSI (pounds per square inch) for passenger vehicles. Building on the success of the Primacy 4+, the Primacy 5 offers a significant 18% increase in mileage and a 4% reduction in wet braking distance (when new). This premium tyre incorporates Michelin’s EverGrip and EverTread technologies for enhanced longevity and superior water evacuation capabilities.Michelin have developed and innovative tread wear marker within the Primacy 4 which helps you to identify when they tyre will need changing to get the best possible tread life from the tyre. The Primacy 4 has been tested to out last competitors on average it is 11,000 miles extra you would achieve.The Michelin Primacy 4 Zero Pressure is the run flat version of the Primacy 4. The tread pattern of the tyre has been constructed with an optimised sculpture to allow for quick and efficient water evacuation – reducing the risk of aquaplaning and delivering a strong braking performance in wet conditions.Depending on its specific tire size, maximum tire inflation for Michelin Primacy 4 tire is 50 psi. Michelin Primacy 4 tire load capacity and maximum inflation may vary depending on tire load index and load range.
What happens if you go faster than your tire speed rating?
Running a tire at speeds higher than its rating can shorten the tire’s life and potentially lead to a tire damage which could result in an accident, so it is important to follow the manufacturer’s speed rating recommendations when you are choosing tires. H Rating: Can provide extended tread life and durability with proper maintenance. V Rating: Typically has a shorter tread life due to the higher performance and grip characteristics.Sticking with H-rated tires comes at a cost. While we found prices are similar to S- and T-rated tires, H-rated tires didn’t last as long in our treadwear test–an average of 49,180 miles, versus 61,080 for our S- and T-rated tires. V-rated tires had an even shorter tread life of 48,260 miles.H-rated tires only allow you to rev up within a maximum range of 130 mph. In comparison, V-rated ones extend the performance of tires up to 149 mph. The distinction comes from the theoretical aspect of speed and the driving experience. One thing is certain: swapping the two is not good for the vehicle or the driver.
How fast is a 91V tire?
Below is an example of a the description on a tire’s sidewall: 2015/60R15 91V. Here, the tire would have a speed rating of V. V-rated tires can be driven at 149 MPH. As an example, for a tyre with the markings 205/55/R16/ 91V, 205 denotes the width of the tyre in millimetres, 55 denotes the tyre’s aspect ratio, which is the sidewall’s height given as a percentage of the width, R16 specifies that it is a radial tyre with an inside diameter of 16 inches and 91V indicates the load .