Tag Another Mikesblown73z28 1973 Chevrolet Camaro Post Photo 4817986

New 15+ 325 50 15 Tires

New 15+ 325 50 15 Tires. The circumference is 87.3 and they have 726 revolutions per mile. I went with the rallies because when i bought the truck it had damn good tires on 15x8 (i think) rallies. Tire, nt 555 rii, 325/50r15, radial, 2,447 lbs. Similar to the miata tire calculator and 1010 tire calculator. 325 50 15 Tires - The National Lightning Owners Club Inc Zr speed rated | 255 50 15.