Michelin Primacy XC 275/65R18 116T 2022 Ford F150, Blackwall version of 75614. Performance mixable with 75614.
More Michelin Primacy XC can be ordered from different warehouses. Contact us for more detail.
How to Read Tire Size Information
Read metric sizes: 205/55R16 91V
Section Width : 205
The width of this tire size is 205mm wide. The first number in a metric tire size is the section width of the tire.
Aspect Ratio : 55
The aspect ratio on this tire size is 55. The sidewall height of a metric tire is 50% of the section width, which is known as the aspect ratio.
Tire Construction : R
The tire size is indicated by the letter R, which stands for radial construction. This construction method is widely used in the tire industry.
Wheel Diameter : 16
The wheel diameter of this tire size is 16 inches. The tire is designed to be mounted on an 16" wheel diameter.
Load Index : 91
The load index of this tire is 91 - 1356 lbs. It indicates the maximum weight the tire can handle. Higher numbers correspond to greater weight capacity.
Speed Rating : V
This tire size has a speed rating of V - 149 mph 240km/h. The letter 'V' indicates the maximum speed the tire can sustain.
Read inch sizes: 33X12.50R15LT C/6
Diameter : 33
The tire size has a diameter of 35 inches. The first number in a high flotation tire size represents the overall diameter.
Section Width : 12.50
The width of this tire size is 12.5 inches. The width of the tire in inches is indicated by the second number in a high flotation tire size.
Tire Construction : R
The tire construction of this tire size is R for radial. This letter is for how the tire is constructed. Radial is the standard construction method for almost all tires.
Wheel Diameter : 15
The wheel diameter of this tire size is 15 inches. This tire is specifically designed for mounting on a 15 inch wheel diameter.
Tire Class : LT
This tire size is classified as 'LT' which designates it as a Light Truck tire.
Load Range : E
Tire load range of this tire size is 'C' which means it has a 10 ply tread. Other load ranges include B: 4 ply, C: 6 ply and D: 8 ply.
Load Ratings Chart
Load Index |
Max lbs. | Load Index |
Max lbs. |
---|---|---|---|
71 | 761 | 86 | 1168 |
72 | 783 | 87 | 1201 |
73 | 805 | 88 | 1235 |
74 | 827 | 89 | 1279 |
75 | 853 | 90 | 1323 |
76 | 882 | 91 | 1356 |
77 | 908 | 92 | 1389 |
78 | 937 | 93 | 1433 |
79 | 963 | 94 | 1477 |
80 | 992 | 95 | 1521 |
81 | 1019 | 96 | 1565 |
82 | 1047 | 97 | 1609 |
83 | 1074 | 98 | 1653 |
84 | 1102 | 99 | 1709 |
85 | 1135 | 100 | 1764 |
Load Index |
Max lbs. | Load Index |
Max lbs. |
---|---|---|---|
101 | 1819 | 116 | 2756 |
102 | 1874 | 117 | 2833 |
103 | 1929 | 118 | 2910 |
104 | 1984 | 119 | 2998 |
105 | 2039 | 120 | 3086 |
106 | 2094 | 121 | 3197 |
107 | 2149 | 122 | 3307 |
108 | 2205 | 123 | 3417 |
109 | 2271 | 124 | 3527 |
110 | 2337 | 125 | 3638 |
111 | 2403 | 126 | 3748 |
112 | 2469 | 127 | 3858 |
113 | 2535 | 128 | 3968 |
114 | 2601 | 129 | 4079 |
115 | 2679 | 130 | 4189 |
LT Load Ranges
Load Range | Ply Rating | Max Load Pressure |
---|---|---|
B | 4 | 35 psi |
C | 6 | 50 psi |
D | 8 | 65 psi |
E | 10 | 80 psi |
F | 12 | 95 psi |
Passenger Load Ranges
Load Range | Symbol | Max Load Pressure |
---|---|---|
Light Load | LL | 35 psi |
Standard Load | SL | 35/44 psi |
Extra Load | XL | 41/50 psi |
Speed Ratings
Letter | Max Speed |
Vehicle Types |
---|---|---|
L | 75 mph / 120 km/h | Off-Road Tires |
M | 81 mph / 130 km/h | Spares |
N | 87 mph / 140km/h | Winter Tires |
P | 93 mph / 150 km/h | Winter Tires |
Q | 99 mph / 160 km/h | Light Truck |
R | 106 mph / 170 km/h | Light Truck |
S | 112 mph / 180 km/h | Light Truck |
T | 118 mph / 190 km/h | Sedans |
U | 124 mph / 200 km/h | Sedans |
H | 130 mph / 210 km/h | Sports Cars |
V | 149 mph / 240 km/h | Sports Cars |
W | 168 mph / 270 km/h | High-Performance Cars |
Y | 186 mph / 300 km/h | High-Performance Cars |
Tire Size Calculator
Compare diameter, width, sidewall & revs — updates as you type.
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*Calculator compares nominal sizes. Real tires vary by brand/model. Always check clearances, load/speed ratings, and local regulations before use.