I am not sure how much bigger tire size I could go without a body lift. I just put these 265/70/R16 Goodyear Wrangler All-Terrain tires on my 4-cylinder 2012 Escape and they fit just fine with ample clearance. No problems on the road and do not seem to adversely affect the engine performance and transmission. The ride is smooth and relatively quiet for an A/T tire. I just wonder how much bigger I could go without a lift kit. I think I will leave well enough alone for now. If my Escape had a 6-cylinder, I would lift it and go for mega-big tires.