Inthe tire comparison table above, you can see a detailed calculation of the size difference between 225/55 R17 and 225/50 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 225/55 R17 is on top, and tire with size 225/50 R18 below. Both in the table and in the graph, the tires areSizedifference between 225/60 R18 and 235/65 R18 tires. In the tire comparison table above, you can see a detailed calculation of the size difference between 225/60 R18 and 235/65 R18 tire. The calculation
Compare225/55 R18 vs 225/55 R17. So, the sidewall height of a 225/55 R 18 tire is 60% of 225 = 192. The 3rd number 18 (generally preceded by an "R") is Rim Diameter in inches. This is the diameter of the rims bead seat base, not the diameter of the outer rim edge. The rim edge, or lip, extends past the tire bead seat to hold the bead and
22555R18 tire size comparison with Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs per mile and speedometer difference. TOLL FREE. 28.45" 2.55% Tread Width Profile . 309 57 190 160 17 348 89 44 90