Wheel Size/Offset and Tyre calculator :D | ITR-DC5 Forum
Wheel Offset Calculator | Find Your Offset | Custom Offsets
Tire Calculator 2010 Download: Calculate the overall diameter and section height of a tire by providing information about the wheel size, with the aid of this portable tool
Tyre Size for Rim Size/Width Calculator - What's the best tyre size for my rim? - TyreSizeCalculator.com