What size spare wheel cover would you need for 235 75 R15?

For a tire size of 235/75 R15, you would typically need a spare wheel cover that fits a 15-inch wheel diameter. The recommended cover size would generally be labeled for 15-inch tires, specifically accommodating the width and aspect ratio of the 235/75 tire. It's important to check the specific product details, as some covers may also indicate the tire's width range for a proper fit.