How to Measure Tire Size in Inches

1 Answers
LaThomas
07/30/25 9:30am
Methods for measuring tire size include: 1. Use a metal tape measure to wrap around the tire along the centerline of the tread or the highest point near the centerline to measure the outer circumference; 2. Select a section of the tire sidewall without markings, decorative lines, or protective strips, and use a vernier caliper or calipers to measure the cross-sectional width at approximately four equally spaced points around the tire. The functions of tires are: 1. To prevent severe vibrations and premature damage to automotive components, adapt to the high-speed performance of vehicles, and reduce driving noise; 2. To support the entire weight of the vehicle, bear the load of the car, and transmit forces and moments in other directions; 3. To transmit traction and braking torque, ensuring good adhesion between the wheels and the road surface to improve the vehicle's power, braking, and off-road performance.
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