15575 R14 what a this nomenclature?
This is the arcane lore of the tire sidewall, and it breaks down like this: 155 75 R 14
"155" is the section, or tread width, almost always expressed in millimeters.
"75" is the "aspect ratio"; the height of the sidewall divided by the width of the tread, and expressed as a percentage.
"R" means it's a radial tire, and "14" is the rim diameter, expressed in inches.
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