1999 Hummer H1 Tire Sizes
Select a box to get your vehicle's tire size.
1999 Hummer H1 (1 Piece Steel Wheel)
Original Tire Size (Show Details)
37x12.50R16.5/ 123
12.5 |
This number indicates that your tire has a width of 12.5 inches. |
R |
This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today.
|
16.5 |
The tire size was designed to fit rims that are 16.5 inches in diameter. |
123 |
This tire has a load index of 123, which means it's capable of carrying a load of 3418 pounds (1550 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |
| This tire has a speed rating of N, which means 87 mph (140 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. | |
37 |
This number indicates that your tire has a diameter of 37 inches. |
Alternate Tire Size (Show Details)
37x12.50R16.5/ 123
12.5 |
This number indicates that your tire has a width of 12.5 inches. |
R |
This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today.
|
16.5 |
The tire size was designed to fit rims that are 16.5 inches in diameter. |
123 |
This tire has a load index of 123, which means it's capable of carrying a load of 3418 pounds (1550 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |
| This tire has a speed rating of Q, which means 99 mph (160 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. | |
37 |
This number indicates that your tire has a diameter of 37 inches. |
1999 Hummer H1 Standard
Original Tire Size (Show Details)
37x12.50R16.5/ 123
12.5 |
This number indicates that your tire has a width of 12.5 inches. |
R |
This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today.
|
16.5 |
The tire size was designed to fit rims that are 16.5 inches in diameter. |
123 |
This tire has a load index of 123, which means it's capable of carrying a load of 3418 pounds (1550 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |
| This tire has a speed rating of N, which means 87 mph (140 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. | |
37 |
This number indicates that your tire has a diameter of 37 inches. |
Alternate Tire Size (Show Details)
37x12.50R16.5/ 123
12.5 |
This number indicates that your tire has a width of 12.5 inches. |
R |
This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today.
|
16.5 |
The tire size was designed to fit rims that are 16.5 inches in diameter. |
123 |
This tire has a load index of 123, which means it's capable of carrying a load of 3418 pounds (1550 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |
| This tire has a speed rating of Q, which means 99 mph (160 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. | |
37 |
This number indicates that your tire has a diameter of 37 inches. |