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What size tire is equivalent to 275/80r22.5?

2 Answers

DiNoah

07/29/25 7:51am

275/80r22.5 is equivalent to a tire with a diameter of 22.5 inches. 275/80r22.5 is the tire marking, with each parameter representing different meanings. Here, 275 refers to the tire width (mm), which is the section width; 80 refers to the aspect ratio, which is the percentage of the sidewall height to the tire width; 'r' stands for radial tire; and 22.5 represents the diameter of the wheel rim. Hazards of excessive tire pressure: 1. Reduced driving experience: When the tire pressure is too high, you will noticeably feel more bumps during driving, significantly reducing comfort and diminishing the driving experience. 2. Shortened tire lifespan: The tire may bulge slightly, causing the center tread to wear out faster while the side treads wear more slowly, leading to abnormal wear patterns and reducing the tire's lifespan. Additionally, driving at high speeds or in high-temperature environments increases the risk of tire blowouts.

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StColin

08/12/25 11:06am

I recently replaced this type of large truck tires for our company fleet, let me explain. The 275/80R22.5 specification is mainly used for trailers or construction vehicles. 275 refers to the tire width of 275 millimeters, 80 is the aspect ratio, calculating to a sidewall height of about 220 millimeters. R stands for radial construction, and 22.5 indicates the rim diameter. The overall tire diameter is approximately 40 inches, calculated by adding the rim diameter (22.5 inches) to the sidewall height on both sides (220mm ≈ 8.66 inches × 2), then converting the units. Tires of this size have a large contact area and exceptional load-bearing capacity. My long-haul driver colleagues say these tires are extremely durable on construction sites. If you're considering switching to tires of the same size, remember to check the tire pressure range – heavy-duty tires require much higher pressure than regular vehicles.

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