1)   Tirepro 3.1
Tirepro is a affordable tire inventory, management and invoice solution for independent tire shops and service stations.
Tires, tire, Inventory, Pricing, Invoice, database, Automotive, Servicestation, Tireshop,

 2)   Off The Road Metric Tire Size Calculator 1
As any 4x4 or car enthusiast should know, when you are dealing with formulas dealing with gear ratios and such - you will need to know the tire diameter in inches; this calculator will offer just that.
4x4, winch, tire, dimension, calculator,