This Tire Size Comparator tool is made for comparing tires with different parameters.It can be handy if you want to change your Factory(Stock) wheel for a bigger one. In this case you need to get new tires too and to calculate the new tire parameters you should use this tool.The application NEVER use your private data. This is my own privacy policy: private data remain private if it depends on me!Please rate it if you like it! Thank you.