Frequently Asked Questions
This is the tire size information. 305 is the tread width in millimeters. 45 is the aspect ratio, which refers to the sidewall height as a percentage of the tread width, in this size, a 45% height gives around 5.4 inches. “R” shows that it is a radial construction: all modern passenger and truck tires use this technology. 22 is the tire and wheel/ring design which means it’ll fit a 22-inch wheel.
This tire size is common in larger high-performance cars like the Dodge Challenger/Charger, Ford Mustang, plus-sized trucks like the Ram 1500, as well as custom fitments for luxury SUVs.
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When properly installed on a 22-inch wheel, this tire size has an approx 33.4-inch overall diameter. Due to the 45% aspect ratio, the tire has a very short 5.5-inch sidewall with an extremely wide 12-inch tread width.
Most of these tires recommend a cold inflation pressure between 35 and 45 PSI. However, always consult your vehicle's placard or owner's manual for the manufacturer's specified pressure for your make and model.
