205/55-R16 tires are 0.68 inches (17.3 mm) larger in diameter than 185/70-R14 tires and the speedometer difference is 2.7%. May 9, 2018 · Latest Uniroyal RainExpert 3 Reviews. Given miles. I drive a Seicento Sporting but due to lack of good tyres in 165/55r13, I have chosen to go to 155/65r13 which is a dimension with more and better choices. Uniroyals Rain Expert 3 were chosen based on their wet handling and small price difference compared to budget tyres. 185/65 r15 195/45 r16 195/50 r15 195/55 r15 195/55 r16 195/65 r15 205/45 r17 175/70 r14 185/65 r14 195/70 r15 215/70 r15 225/35 r18 245/70 r16 195/75-R14 tires are 1.32 inches (33.5 mm) larger in diameter than 185/70-R14 tires and the speedometer difference is 5.2%. 195/65-R14 tires are 0.51 inches (13 mm) larger in diameter than 185/65-R14 tires and the speedometer difference is 2.2%. The 2nd number 55 is used to calculate the sidewall height or "aspect ratio", by percentage. So, the sidewall height of a 195/55 R 16 tire is 60% of 195 = 192. The 3rd number 16 (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. 2QES.

185 70 r14 vs 175 65 r14