STOCK Tire Size
165 175 185 195 205 215 225 235 245 255 265 275 285 295 305 315 / 30 35 40 45 50 55 60 65 70 75 80 85 -R 8.5 9 9.5 10 11 12 13 14 15 16 17 18 19 20

NEW Tire Size
165 175 185 195 205 215 225 235 245 255 265 275 285 295 305 315 / 30 35 40 45 50 55 60 65 70 75 80 85 -R 8.5 9 9.5 10 11 12 13 14 15 16 17 18 19 20

Calculated Results After Tire Changes

Stock tire width:
"

New tire width:
"

Stock tire thickness:
"

New tire thickness:
"

Stock tire diameter:
"

New tire diameter:
"

When the vehicle speedometer indicates MPH the vehicle speed is actually MPH