The tyre designation R, which comes before the rim diameter marking, means that this tyre is a **radial tyre**. Other examples are “B” for Bias-ply or “D” for Diagonal construction. Radial tyres are the most common tyres on the road today.

also Does tyre speed rating matter? The tire speed rating is **the maximum speed tires can safely carry a load** (the original weight of your vehicle plus whatever’s in it) for a sustained amount of time in ideal conditions. … Generally, the higher in the alphabet a tire is rated, the better it will manage heat and faster speeds.

What does 75t mean on a tyre? **Radial construction**.R stands for radial-ply construction. 387. 387 is the load index i.e. the maximum weight each tyre can carry at full speed. T is the speed rating i.e. the maximum speed for the tyre at full load.

Then, What does Y mean on a tyre? Z-rated high-performance tyres are rated for speeds in excess of 149mph. Confusingly, W-rated tyres are rated at a higher speed in excess of 168mph. Y-rated **tyres are rated in excess of 186mph**.

## What does XL mean on a tyre?

A reinforced or XL (**extra load**) tyre is a specially reinforced tyre which carries heavier loads than tyres of the same size. These types of tyres are stronger and more hardwearing than standard tyres, and are often used for large vehicles that carry heavy loads or large family cars, such as 4x4s.

In this regard Can I use a tyre with a higher speed rating? However, for cars the fitting of a **higher speed rating is fine**. If you do choose a tyre with a higher speed rating though, we recommend that you match the tyres across the axels, avoiding having different speed ratings fitted on either side of the car. … The only exception to this is a winter tyre.

What happens if you go faster than tire speed rating? Some of those states acted without consulting the tire industry. Safety advocates and tire experts say that habitually driving faster than a tire’s rated speed can **generate excessive heat that damages the rubber**, with potentially catastrophic results.

Do higher speed rated tyres last longer? A tyre with a higher speed rating will give better grip and stopping power but **may not last as long** and may not perform as well in cold weather/winter conditions. V, Z, W, and Y-rated tyres, therefore, tend to be better suited to high-performance vehicles driven in warmer climates.

## What does 85T mean on tires?

MRF ZTX 165/80 R14 85T Specifications

85 is **the load index i.e. the maximum weight each tyre can carry at full speed**. T is the speed rating i.e. the maximum speed for the tyre at full load.

What does 91 mean on tyres? It indicates **the maximum load a tyre can safely carry when driving at the maximum speed permitted**. It is absolutely forbidden to use tyres with a lower load index than the one recommended for a particular car model. For example, a tyre with a load index of 91 may be subject to a maximum load of 615 kg.

What does R14 mean on a tyre?

R14 means the **tire is meant to fit on a 14-in.** **diameter wheel**. The R means it’s a radial construction tire, which refers to the direction of the tire’s internal structural cords. These days, radial tires are the industry standard for passenger vehicles. The 82H is the tire’s maximal load and speed rating.

What speed rating is S? Tire Speed Rating Chart

Speed Rating Symbol | Speed (mph) | Speed (km/h) |
---|---|---|

Q | 100 mph | 160 km/h |

R | 106 mph | 170 km/h |

S | 112 mph |
180 km/h |

T | 118 mph | 190 km/h |

• 25 Sept 2020

## Can I mix w and y tyres?

The final rating is the maximum speed the tyre is legally approved for. You can invalidate your car insurance by fitting new tyres that have a lower speed rating than the manufacturer’s original fit. … **Mixing tyre speed ratings isn’t recommended**.

What does 91 mean on a tyre?

This is the maximum load that the tyre is able to carry when inflated to the correct level. Each double digit number represents a different weight (in KGs). 91 is the number in the example and this corresponds to a **weight of 615KG**.

Can I mix XL tyres with normal tyres? **Don’t mix different load rated tyres on the same axle**. … The size for them is 205/55 R16 which gives you a very wide choice, including all-weather tyres that are more compliant than summer tyres whatever the load rating.

Are XL tires better? Are there other advantages to XL tyres? When an XL tyre is run at the pressure recommended by the vehicle manufacturer, it will last longer. These tyres are considered to have **greater grip and better traction**. Because they are more rigid, they will corner better and maintain stability.

## Are XL tires louder?

XL tires **produce more noise than standard tires**. It can lead to an uncomfortable driving experience. These tyres consume more fuel.

What does W and Y mean on tyres? You can find your tyres’ speed rating on the sidewall of the tyre as shown in the image. … Z-rated high-performance tyres are rated for speeds in excess of 149mph. Confusingly, **W-rated tyres are rated at a higher speed in excess of 168mph**. Y-rated tyres are rated in excess of 186mph.

Can I use a tyre with a lower speed rating?

**You can invalidate your car insurance by fitting new tyres** that have a lower speed rating than the manufacturer’s original fit. Generally speaking, there’s no problem with fitting new tyres that have a higher tyre speed rating – just note that it will probably cost you more and there may not be any significant benefit.

What is the speed rating T? T-Rated Tires: This tire is often recommended for family sedans and vans. It’s **rated for up to 118 mph**. That’s well below the speed limit of most states, unless you’re planning on bringing your commuter on the Autobahn.

### What does M’s mean on a tire?

M+S stands for **Mud+Snow**, indicating that the tires are suitable for use in the winter (studded or non-studded winter tires). The official winter tire marking is the snowflake symbol, also known as the 3PMSF marking.

How much does speed rating matter? The speed rating tells **you the speed the tire can safely maintain over time**. A higher speed rating usually means you will have better control and handling at higher speeds – and that the tire can take the extra heat. As a general rule, tires with higher speed ratings also handle better at slower speeds.

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