In the tire comparison table above, you can see a detailed calculation of the size difference between 235/65 R17 and 235/55 R19 tire. The calculation results are presented in the form of visual infographics, on which tire with size 235/65 R17 is on top, and tire with size 235/55 R19 below. Both in the table and in the graph, the tires are 235/65-R17 tires are 0.55 inches (13.9 mm) smaller in diameter than 245/60-R18 tires and the speedometer difference is 1.9%. For sale Winter tires Imperial Eco norch suv, 235/65/R17, In stock: 4 pc., Tread depth: 9 mm., Condition: Used, Installation is possible. 170 €/set 31/10/2022 Riga, Jugla The calculation results are presented in the form of visual infographics, on which tire with size 225/65 R17 is on top, and tire with size 235/60 R18 below. Both in the table and in the graph, the tires are compared according to the following indicators: overall diameter, section width, circumference, sidewall height and clearance. Tire Size and Comparison Calculator calculate tire diameter from code and compare speedometer differences for tire sizes. The first number 225 is the tire width in millimeters. The 2nd number 55 is used to calculate the sidewall height or "aspect ratio", by percentage. So, the sidewall height of a 225/55 R 18 tire is 60% of 225 = 192. In the tire comparison table above, you can see a detailed calculation of the size difference between 235/60 R18 and 245/45 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 235/60 R18 is on top, and tire with size 245/45 R18 below. Both in the table and in the graph, the tires are 235/65-R18 tires are 1.4 inches (35.5 mm) larger in diameter than 225/60-R18 tires and the speedometer difference is 4.7%. Latest Tyre Test Results. 2023 ADAC 17 inch Winter Tyre Test - 3rd of 15 tyres. Positive - Safe driving characteristics on dry roads, still good properties on wet roads, very high predicted mileage, low abrasion, good efficiency. Negative - Slightly longer braking distances on wet roads. Overall - The GOODYEAR UltraGrip Performance+ tyre offers Continental AllSeasonContact belongs to the Premium segment and is made by a manufacturer from Germany. However, this particular model is made in Slovakia/Czech Republic/France. It is made in total of 158 sizes, 155/65 R14 being the smallest and 275/45 R20 the largest. This tyre was featured in tests 25 times, first test was carried in 2018. So, the sidewall height of a 255/60 R 18 tire is 60% of 255 = 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 stop the tire slipping off the rim. NK3f.