Both are acceptable.
The Michelin PA4 - V rated
255/40/19 comes with Asymmetical design
265/40/19 comes with Directional design
Since the 255 series are in extreme short supply in North America (at the time I bought the tires), my tire shop advised me I can go 265 which has the identical spec for the front anyway and by going square, the 265 will have no issue for the rear.
Lastly, I am not a fan of Pirelli. My second choice would have been Bridgestone LM60 (but this is only H rated tire)
Originally Posted by Patsc23
Just curious - why 265 over 255?