225/50-R17 tires are 1.18 inches (30 mm) smaller in diameter than 255/50-R17 tires and the speedometer difference is 4.4%. In the tire comparison table above, you can see a detailed calculation of the size difference between 245/40 R17 and 255/40 R17 tire. The calculation results are presented in the form of visual infographics, on which tire with size 245/40 R17 is on top, and tire with size 255/40 R17 below. Both in the table and in the graph, the tires are 245/45 r16; 245/70 r16; 245/75 r16; 255/70 r16; 265/70 r16; 265/75 r16; 275/70 r16; 285/75 r16; 225/50 r17; 225/55 r17; 225/60 r17; 225/65 r17; 235/45 r17; 235/55 225/45-R17. Changes. Dev. 80 mph. Circ. 193.7 cm (6' 4.26") 193.4 cm (6' 4.14") -0.3 cm (-0.12") -0.15% 225: 50: 16: 61.37 (2' 0.16") 192.8 (6' 3.91") -0.5%: 225: The calculation results are presented in the form of visual infographics, on which tire with size 265/65 R17 is on top, and tire with size 255/65 R17 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. Aug 12, 2014 · Sidewall height is determined by the aspect ratio ("profile") as a function of its section width (225 in our case). The sidewall height of our OB's tires is 60% (aspect ratio) of 225mm (section width). You could go with a 55 series tire on the OB without much odo/speedo difference is you up the width to 235 (or 235/55/17). .

245 45 r17 vs 225 50 r17