Yes, you can replace 245/55R18 tires with 235/50R18 tires. The 235/50R18 tires are about 1.36 inches smaller in diameter. This change affects the speedometer accuracy by around 4.8%. Make sure the new tires meet your vehicle’s load rating and tire specifications for proper fitment and safety.
Both tires share the same diameter of 18 inches, but the overall circumference will differ slightly. The 245/55R18 tire has a diameter of approximately 29 inches, while the 235/50R18 tire measures around 28.2 inches. This difference can affect speedometer readings and vehicle handling.
When considering a replacement, check your vehicle’s specifications. Use the owner’s manual or consult a tire professional for guidance. Switching to 235/50R18 tires might also impact ride quality and stability due to the shorter sidewall.
Next, we will explore the implications of these size differences on vehicle performance, fuel efficiency, and safety aspects.