245/75-R16 tires are 0.33 inches (8.5 mm) smaller in diameter than 235/80-R16 tires and the speedometer difference is 1.1%.
245/40-R18 tires are 0.1 inches (2.5 mm) larger in diameter than 215/45-R18 tires and the speedometer difference is 0.4%.
245/40-R19 tires are 1.24 inches (31.5 mm) larger in diameter than 235/35-R19 tires and the speedometer difference is 4.6%.
The 2nd number 65 is used to calculate the sidewall height or "aspect ratio", by percentage. So, the sidewall height of a 235/65 R 18 tire is 60% of 235 = 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.
235/40/17 vs 245/40/17 STX. I know the 235/40/17 seems to be the more popular size, just curious if anyone has run both and come to the same conclusion. 235 better "gearing" 24.4" vs 245 @ 24.7 (but is still a wee bit shorter than stock 25") section width/tread width 9.5/8.5" vs 9.8/9.0" respectively. weight 25 lbs vs 27lbs.
In the tire comparison table above, you can see a detailed calculation of the size difference between 235/45 R18 and 245/40 R19 tire. The calculation results are presented in the form of visual infographics, on which tire with size 235/45 R18 is on top, and tire with size 245/40 R19 below. Both in the table and in the graph, the tires are
The calculation results are presented in the form of visual infographics, on which tire with size 245/40 R18 is on top, and tire with size 255/40 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.
6183. Better Fuel Economy Factory Ratios Increased Power. 235/45-R17 tires are 0.61 inches (15.5 mm) larger in diameter than 245/40-R17 tires and the speedometer difference is 2.4%.
. hnuc0ack76.pages.dev/63hnuc0ack76.pages.dev/105hnuc0ack76.pages.dev/19hnuc0ack76.pages.dev/31hnuc0ack76.pages.dev/261
235 45 vs 245 40
