I have 2013 Prius I am running Yokohama 195/65/15 for last 3 year since I keep getting a nail on outside wall can't be repair,I like to change to wilder & taller and stay on the 15" rim would like to known which size I can use with out doing any mod.Thanks in advance for any input.
No puncture on a tire wall is repairable, no matter the tire size. As for your options of going bigger from 195/65R15 on the same rim, enter your current tire size and pick your poison. Tire Size Calculator The larger tires may be considerably more than the current 195/65R15.