## What does 106w mean on tires?

The next letter (W) specifies the speed rating, or the maximum speed at which the tire is rated to function without failing. On most cars, these range from L (75 mph) to V (149 mph), but you’ll probably be considering R (106), S (112), T (118), U (124), or H (130).

## How fast is W speed rating?

168 mph

SPEED RATING W A relatively new addition to the speed rating chart, tires with speed rating “W” can achieve a maximum sustained speed of 168 mph (270 kph).

**What does 106V mean?**

This consists of the speed capability of tires matched with the peak speed capability of the vehicles they are fitted on. Thus, using the V rating, both the 275/45R20 106V and the 275/45R20 109V tire have a speed capability of 149 km/hr and are applied to sports cars, which typically can go as fast as 240 km/hr.

**What is Z speed rating on tires?**

The Irregular Z While Z-speed rated tires are capable of speeds in excess of 149 mph, the Z rating did not specify how far above 149 mph.

### What does 103W mean on tires?

The number is the load index, it indicates the maximum load that a tyre can carry, and the W is the speed index, it indicates the maximum speed that the tyre can reach. 103W – Load 875 kg (approx 1929 lbs), Speed 270 km/h (approx 168mph) 107W – Load 975 kg (approx 2148 lbs), Speed 270 km/h (approx 168 mph)

### What does 92Y mean on a tire?

Service description. In our example — P225/50R16 92Y — the letter “P” in front of the numbers means this tire is for passenger cars. Other designations might be “LT” for light truck or “T” for a temporary (a spare tire).

**What does 97h mean on a tire?**

H-rated tires are rated for a maximum speed of 130 mph. The V rating is the next rating faster, and V-rated tires are good to 149 mph. Both H- and V-rated tires are considered to be performance-touring tires.

**What does 113t mean on a tire?**

The “T” or “H” on tires pertain to their speed ratings. A T-rated tire can withstand top speeds of up to 118 mph (190 km/h), while an H-rated tire can support up to 130 mph (210 km/h). It is important to note these markings and stay within those speed limits.

## What speed rating is Zr?

ZR Designation Tires having a maximum speed capability over 149 MPH may have “ZR” in the size designation. Tires with a maximum speed capability over 186 MPH are required to include “ZR” in the designation.

## What does 96W mean on a tire?

Weight limit and speed rating. 96W means they are rated to carry more weight than yours.

**What does a W speed rating mean on tires?**

A W means the tire is approved for speeds up to 168 mph (270 km/h) under optimal conditions. W speed rated tires land firmly at the performance end of the speed rating spectrum.

**What is a “speed rating?**

Speed rating is established under controlled testing where – once again, under optimal conditions – the tire is verified as capable of safely running at (up to) the indicated miles per hour. Heavily worn, damaged, punctured, or repaired tires would all be considered sub-optimal, and no longer capable of safely accomplishing their max speed rating.

### What is the difference between a T and h speed ratings?

A T rating indicates the tire is approved for speeds up to 118 mph (190 km/h) under optimal conditions. T ratings are most associated with standard touring tires, and everyday passenger vehicles like family sedans and minivans. An H speed rating indicates the tire is approved for speeds up to 130 mph (210 km/h) under optimal conditions.

### What do the speed ratings on boat and utility trailer tires mean?

Most boat and utility trailer tires have this speed rating which is a maximum of 75mph An M indicates the tire has been approved for speeds up to 87 mph (140 km/h) and an N is approved for speeds up to 81 mph (130 km/h) under optimal conditions. You’ll find M and N ratings on tires for temporary use like spare tires.