Reply to "Tire Diameter"

pappyMember

quote:
Originally posted by MARLIN JACK:
According to the information in the book "Pantera, the ultimate portfolio", pages 16 and 19; if you are talking ORIGINAL size (1971) they are: Dunlap, Michelin, or Goodyear radials, Front- 185/70-VR15, Rear- 215/70-VR15. You'll have to look up the diameters yourself. Marlin.

The formula for tire diameter is as follows- Example (215/70-VR15) 215 is width in millimeters. divide that by 25.4 inches and you get tire width (8.46 inches) Take the tire width 8.46 times the aspect ratio (70) and you come up with the tire section or 5.93 inches. Add up tire section times 2 plus the rim size and you have the total diameter 5.93+5.93+15.00=26.86 tire dia. This works for any tire and rim combination.

3/19/039:37 AM

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