Truck tire specifications
The difference is the size of the tire rim. Definitely not the same height. 9 represents specification R indicating radial tire 20 indicating rim size. There's actually a tire hierarchy behind. The standard is 9.00R20-16. 16 represents the carrying capacity of the tire (hierarchy)The screws are the same, but the height is not the same as the width. These are tubeless tires.If it's a vacuum, it's 9R22.5-14 or 12R22.5-16
1200 is 300 wider than 900. The wheels are the same size. They can be used with each other. 1200R20 is more expensive, but it's safer because it's wider and holds more.
