121/118Q refers to the load rating of the tire. 121 denotes that each tire can carry 3,195 pounds at the maximum inflation pressure. The second number (118) refers to the load rating on a single tire used in a dual rear wheel application. “Q” refers to the tire’s speed rating.
What does 121 118s mean on a tire?
R – Designates the tire has radial construction. 17 – Wheel Diameter. 121/118 – Load Index. S – Speed Rating.
What load index is load range E?
For example, a tire load range E rating means that the specific model and size can handle 1,520 lbs at 80 PSI. In other words, when the trailer or light truck tires hold the correct air pressure levels of 80 PSI, they can carry 1,520 lbs/tire.
What load index is load range C?
For example, a “C” load range indicates that a tire is equivalent to a 6-ply construction tire.
What is load range 121 118? – Related Questions
What does C mean in tires?
The C-Type tire, on the other hand, is specifically meant as a commercial-rated tire, with a higher load rating for a given size than many LT tires. These C-Type tires will show the letter “C” immediately after the wheel diameter in the tire code. Example: 225/75R16C.
Which is better load range B or C?
B is the lightest classification of load capacity and E carries the heaviest load capacity. Most boat trailer tires fall under C or D. If boat trailer tires hold a C Load that means it can carry up to 1,820 lbs. On a single axle trailer this means that the boat trailer tires can support up to 3,640 lbs.
What is Load Range C and D?
The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like # AM1ST77, the capacity is 1,610 pounds at 65 psi.
How much weight can Load Range C handle?
For example, a trailer tire with a load range C can hold 1,820 pounds. This means that if you are hauling a boat on a trailer with a single axle (meaning two tires are carrying the weight) then the total load capacity is 3,640 pounds* (check the load rating of your tire’s manufacturer).
What is a 91 load index?
A load index of 91, for example, translates to a safe carrying capacity of 1,356 pounds or 615 kilograms.
What is a 121 load index?
Tire Load Index Capacity
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 120 116s mean on a tire?
Light Truck Tire Load Index
This is because light truck tires are often used on vehicles with dual rear wheels. For example, a light truck tire with a load index of 120/116 means a load capacity for a single tire of 3,086 pounds and a load capacity of 2,756 pounds for two tires.
What load range is better E or F?
F-load range tires allow for higher carrying capacity at a higher inflation pressure compared to tires of the same size with an E-load range.
What load rating is F?
Light Truck Tire Load Ranges
| Abbreviation |
Meaning |
Max Load Pressure |
| LR/C |
Load Range C – 6 ply rated |
50 psi |
| LR/D |
Load Range D – 8 ply rated |
65 psi |
| LR/E |
Load Range E – 10 ply rated |
80 psi |
| LR/F |
Load Range F – 12 ply rated
|
95 psi |
1 more row
How many ply is load range F?
Tire Ply-Ratings
So of course a Load Range F does correspond to a 12-ply rating.
What PSI should my 10 ply tires be?
All load range “C” tires (the old “6-ply” rating) can be inflated to 50 psi, “D” (8-ply) to 65 psi and “E” (10-ply) to 80 psi.
Is a 10 ply tire a heavy duty tire?
10-ply tires are typically available for heavy-duty trucks or trailers.
How much weight can a 10 ply tire handle?
At 60 psi on a 10ply tire, the tire’s load carrying capacity is reduced to 2,314 pounds per tire. If the customer runs 65 psi in a 10 ply tire, his capacity is now able to carry 2,507 per tire.
Can you tow with 10 ply tires?
Some drivers with half-ton trucks also prefer to use a 10-ply tire for increased towing capacity. Higher load carrying capacity tires make towing easier because their stiffer tires help stabilize loads and reduce sway at speed.
How do you tell if it’s a 10 ply tire?
The last letter in a standard tire size indicates the number of layers used in the construction of the tire. If there is no letter, the tire has the standard 4 plies. A “C” indicates 6 plies, a “D” indicates 8 plies, and an “E” indicates 10 plies.