**The 115T signifies that the tire has a 4ply standard load sidewall.** **The 121S signifies a 10 ply load range E sidewall**. The standard load tire is best for a half ton truck, whereas the load range E sidewall is best for a 3/4 and 1 ton truck. 2 of 2 found this helpful.

## What is a 121S tire rating?

The rating of 121 shows that it has a **load capacity of 3297LBS**. Multiply that by four tires (4 x 3,297 = 13,188 pounds) to get your vehicle’s max load carrying capacity. Always remember to install tires that have a load index that is equal or greater than your original factory-installed tires.

## What does the T stand for on a tire?

A “P” stands for p-metric, which is a tire used primarily on passenger cars. An “LT” indicates a light-truck tire. A “T” means it’s a **temporary spare**. Some tires get a “Z” or an “F” attached to the radial indicator, denoting a Z-rated tire (see service description below) or a run-flat tire.

## Should I get H or V-rated tires?

To support running at higher speeds, **V-rated tires will have a stiffer sidewall and slightly firmer ride than H-rated tires**. For normal driving conditions the H-rated tire will provide a more comfortable ride and the V-rated should give slightly better handling.

## What does 117 mean on a tire?

Helpful Expert Reply: The 117/112L that you are seeing on your tire is in reference to the **load range and speed rating**. There is tire load index chart for light truck (LT) tires and the 117 corresponds to 2,833 lbs for single tires and the 112 corresponds to 2,469 lbs for dual tires.

## What is 109 s tire?

The numeric load index code 112 represents the maximum load carrying capacity for single wheel use and 109 represents **maximum load carrying capacity for the dual wheel use**.

## What does 105T mean on a tire?

Load and Speed Rating

The load rating represents the maximum weight that a tire can withstand (including the vehicle itself). For example, **a 105T tire can carry up to 2039 lbs.** per tire.

## What does 99H mean on a tire?

235/55R17 99H- The load index (99) is the tire size’s assigned numerical value used to compare relative load carrying capabilities. The higher the tire’s load index number, the greater its load carrying capacity. 97 = 1,609 pounds. 98 = 1,653 pounds. 99 = **1,709 pounds**.

## What does 103t mean on a tire?

103 (Load Index): A load index of 103 means **this tire can carry up to 1,929 lbs**. H (Speed Rating): A speed rating of “H” means that this tire is designed to withstand speeds up to 130 miles per hour.

## Which speed rating is better H or T?

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.

## Are a T tires good in snow?

**All terrain tires do not perform very well in snow and ice**.

Even though snow tires and all terrain tires have a similar looking tread, the difference in pattern and rubber compound makes a huge difference.

## What is the difference between H T and a T tires?

Construction. H/T and A/T are internally similar, but **A/Ts tend to have thicker and stronger rubber to withstand the rigors of off-road abuse**. H/T tires generally have thick metal reinforcing belts and stiff sidewalls, which helps them to keep their round shape when cruising down the road.

## Can I mix H and V rated tires?

Just remember, **never mix and match tires with different speed ratings on your vehicle**. This will cause major problems with the handling of your vehicle. If tires of different speed ratings are mounted on a vehicle, the lower speed-rated tires should be placed on the front axle, regardless of which axle is driven.

## Do higher speed rated Tyres last longer?

You will gain nothing in any other aspect of the tire, such as tire life, treadwear, or what have you. In fact, the higher speed rating doesn’t have much to do with cornering ability, either. Just the speed factor of the tire itself. **There is no relationship between the speed rating and the longevity of the tire**.

## Can I mix V and W rated Tyres?

**Mixing tyre speed ratings isn’t recommended**. If you are in a situation where you must mix tyre speed ratings (after an emergency puncture, for example) then make sure the lower-rated tyres are on the front axle to prevent turning more sharply than you intended (oversteering).

## What ply is load range E1?

10 @ 80 PSI

Load Range and Ply Rating |
||
---|---|---|

E1 | 10 | @ 80 PSI |

E2 | 10 | @ 65 PSI |

F1 | 12 | @ 95 PSI |

G | 14 | @ 110 PSI |

## What is an S speed rating?

An S speed rating **indicates the tire has been approved for speeds up to 112 mph (180 km/h) under optimal conditions**. Everyday passenger vehicle tires can be S speed rated, but S tires often prioritize specific performance or function.

## What ply is 115 load?

For most cars and trucks, the load index is between 75 and 100, equivalent to a capacity of about 387 kg and 800 kg, while you can find a load index ranging from 0 up at 276.

Load Indexes |
||
---|---|---|

Index |
Weight (kg) |
Weight (lbs) |

114 | 1180 | 2596 |

115 | 1215 | 2673 |

116 | 1250 | 2750 |

## What does 98H mean on a tire?

The 98H at the end represents the **service description**. The service description is composed of the load index and the speed rating. The load index would be 98 and the speed rating would be H for our example.

## What does 102T mean on a tire?

102T and 102H are service descriptions. 102 is the 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).

## What does 105V mean on a tire?

The load index for your tyre can be found at the end of the tyre size string eg. 205 / 55 / R18 105V. This code indicates **the maximum load that a tyre can carry** and relates to the table below. For example, using the table, if a tyre has a load index of 105 then the maximum load would be 925kg.

## What is the difference between 105s and 105t tires?

**The 105 is the load index 105 = 2,039 lbs.**

**The letter is the speed rating**

S=112 mph, T=118 mph. Also there other small print 4 digit numbers on the the tire, for example DOT 0615.

S=112 mph, T=118 mph

## What does lt225 75R16 mean?

– **The 225 is your tire’s width in millimeters**. This is how wide the tire needs to be to fit your vehicles rim. – The second number, 75, is the height of the sidewall from the rim of the wheel to the road, also called the Ratio. This is also measured in millimeters. – The ‘R’ means that the tire is a Radial.

## What does 106V mean on a tire?

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.

## Is a higher load rating better?

It’s absolutely crucial to the safety of your driving experience that you select a tyre with an appropriate load rating for your vehicle’s needs. If in any doubt at all, **always go for a higher load rating than you need, as this won’t cause any harm to your vehicle**.

## Are wider tires better?

There’s a reason why the majority of cars have wide rather than narrow tires. Overall, **wider tires are better for dry surfaces and for high-performance vehicles**. Greater surface area allows for better day-to-day traction and durability.

## How wide is a 265 tire?

265/70R17 tires are 31.6″ tall, have a section width of **10.4″**, and fit wheels with a diameter of 17. The circumference is 99.2″ that translates into 638 revolutions per mile.

## How tall is a 70 series tire?

The number 70 is the aspect ratio, sometimes called the profile. This is the ratio of the sidewall height to the width. The sidewall height can be calculated by multiplying the ratio (70 or 0.70) by the width (225): 225 millimeters x 0.70 = **157.5 millimeters**.