What does 235/35R20 mean? What does ZR mean? What is a tread-wear rating? What is a temperature grade? What is a traction grade? How about load rating, speed rating, and DOT badge? Car tires are a confusing mess to look at, with both SAE and metric units, and a complicated nomenclature.

That’s where this video comes in. These guys explain all of the details surrounding the most common markings you’ll find on tire sidewalls, with the ultimate guide to tires. How to read your tires! Make cars and coffee interesting again and read tire sidewalls all day.