225/40-R18 vs 225/45-R18 Tire Comparison - Tire Size Calculator

225/45-R18 tires are 0.89 inches (22.5 mm) larger in diameter than 225/40-R18 tires and the speedometer difference is 3.4%

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Title Comparison of tire sizes 225/40 R18 and 225/45 R18

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