Rim Ringz™ size is directly correlated with your wheel and tire size. The tire size is the most important thing for the proper use of Rim Ringz™. Rim Ringz™ is designed according to tire and wheel standards. The WIDTH of the tire (in millimeters) and the wheel diameter (in inches) are very important for Rim Ringz™.
The tire dimensions (size) must be in accordance with the rim size. Please click on the link to use the Rim Ringz™ rim calculator. rim calculator is a tool that will help you calculate the perfect rim size, for your particular tires. Just enter your tire size and the calculator will calculate the perfect wheel size. For example, if you enter 255/50R16 you will get a result 7x16, which means that 255/50R16 tires should be mounted on a 7x16 rim.
Also, for more information about tires, wheels and the aspect ratio, please go to our page that explains this in detail Tire too wide or too narrow.