To give a rough idea, a 195/50 will spin 29 more times than a 195/55 over the course of a mile. A 195/50 is about 1 pound lighter than a 195/55, and that is 1 pound lighter than a 205/50, on average. I feel the extra grip of a 205/50 gains more than the 1 less pound of unsprung weight of the 195/55, in both accelleration and cornering. 195/55-15 195/65-15 Difference; Diameter inches (mm) 23.44 (595.5) 24.98 (634.5) 1.54 (39) 6.5%: Width inches (mm) 7.68 (195) 7.68 (195) 0 (0) 0%: Circum. inches (mm) 73.65 (1870.82) 78.48 (1993.34) 4.82 (122.52) 6.5%: Sidewall Height inches (mm) 4.22 (107.25) 4.99 (126.75) 0.77 (19.5) 18.2%: Revolutions per mile (km) 860.24 (534.52) 807.36 Wysokość "ścianki bocznej" opony o wymiarach 195/55 R15 wynosi 10.73 cm (107.25 mm). Jak ją obliczamy? Mnożymy szerokość opony (195) razy jej profil (55) i otrzymany wynik dzielimy przez 100 (jeżeli chcemy uzyskać wynik w milimetrach) lub przez 1000 (jeżeli jednostką wynikową ma być centymetr). Tire size comparison 195/50 R15 vs 195/55 R15 Calculate CM INCHES If your speedometer reads: Real speed is: Size difference between 195/50 R15 and 195/55 R15 tires. In the tire comparison table above, you can see a detailed calculation of the size difference between 195/50 R15 and 195/55 R15 tire. Tire size comparison 185/60 R15 vs 195/55 R15 Calculate CM INCHES If your speedometer reads: Real speed is: Size difference between 185/60 R15 and 195/55 R15 tires. In the tire comparison table above, you can see a detailed calculation of the size difference between 185/60 R15 and 195/55 R15 tire. 185/50 r16 +1% 195/40 r16 -3.9% 195/45 r16 -0.5% 195/50 r16 +2.7% 205/45 r16 +1% 215/40 r16 -1.2% 215/45 r16 +2.6% 225/40 r16 +0.2% The exact height difference between a 195 tire and a 185 tire depends on the specific aspect ratio of each tire. But assuming they share the same aspect ratio percentage, then a 195 tire would be 14 millimeters taller than a 185 tire. For example, if both tires have an aspect ratio of 70, then the 195 tires would have a sidewall height of 195 x 7lxitg.