A tire plus-sizing software program for receiving data input and displaying data
output for six different screens that can be used to correctly determine and convert
tire and wheel information to correctly select proper tires and wheels for plus-sizing
personal vehicles. The program provides information regarding the types of tires
that can be used to "plus-size" tires for a given vehicle, i.e., to increase the
wheel diameter without changing the tire diameter. The resulting vehicle with the
"plus-sized" tires has improved vehicle performance, handling and appearance when
compared with the original equipment wheels and tires.