225/55-17 vs 265/40-17 Difference
Diameter inches (mm) 26.74 (679.3) 25.35 (643.8) -1.4 (-35.5) -5.2%
Width inches (mm) 8.86 (225) 10.43 (265)
1.57 (40) 17.8%
Circum. inches (mm) 84.02 (2134.08) 79.63 (2022.56) -4.39 (-111.53) -5.2%
Sidewall Height inches (mm) 4.87 (123.75) 4.17 (106) -0.7 (-17.75) -14.3%
Revolutions per mile (km) 754.11 (468.58) 795.7 (494.42) 41.58 (25.84) 5.5%