You can use two different tire sizes on your 16-inch bicycle. For example, if you have two different-sized wheels and one small tire, you can fit another smaller-sized tire on your bike. Tire sizes are given a letter and a load index number that corresponds to the specific weight of the load. A tire with a letter “S” has a speed rating of up to 112 mph, and a tire with a letter “R” is rated up to 106 mph. Keep in mind that the speed rating does not indicate what you should cruise, but is the maximum speed you can go on a bike. You should always obey the speed limit of your bike’s rim, especially if it’s a motorcycle.
For the tire size, first you need to measure the wheels. A 16-inch wheel will need a tire with a 16-inch diameter, and a 18-inch wheel will need a larger-sized tire. You can also check the aspect ratio of your tires to determine how big they should be. A 16-inch tire is likely to be too wide, and a 18-inch tire may not fit properly. Aside from calculating the diameter and load index, you should also check the aspect ratio of each tire to determine its suitability.
In addition to checking tire diameter, you should consider the brand and model of your car. Changing tire size can be costly and is best done by a professional mechanic or trusted mechanic. You should also remember that tire size is relative to the car’s rim diameter and overall diameter. By following the manufacturer’s specifications, you can run two different sizes of tires on your 16-inch-wheeled vehicle.