A 265/70R-17 has an aspect ratio or sidewall height, of 7.3" (185.5 mm) and a total diameter of 31.61" (802 mm). A 225/65R17 has a sidewall height of 5.76" (146.25 mm) diameter 28.52" (724.3 mm). Switching TO 265/70 FROM 225/65 your speedometer will read 60 mph at a true speed of 66.5 mph. Understand that the 70 and the 65 in the tire size is the % of width. Now, that information is presented for you to decide if you can swap.
Chat with our AI personalities