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What is the method for marking motorcycle tire specifications?

1 Answers

IsabelaMarie

07/30/25 3:26am

There are two methods for marking motorcycle tire specifications: one is the code designation method, and the other is the metric designation method. The code designation method is represented as "b-d", where b is the tire's section width, d is the tire's inner diameter (also the tire's diameter), both measured in inches. The "-" in between indicates a low-pressure tire. Below is a related introduction to motorcycle tire specifications: 1. Tire inflation pressure value: The inflation pressure of motorcycle tires generally ranges between 147 kPa and 343 kPa. Sometimes, the tire specification may also include a ply rating at the end, such as 2.75-17-4PR, indicating that the tire's section width is 2.75 inches, the inner diameter is 17 inches, and 4PR means the tire has 4 plies. 2. Functions of the tire: (1) Direct contact with the road surface, bearing the weight of the vehicle body. (2) Utilizing the elasticity after inflation to cushion and partially absorb vibrations and impacts caused by uneven road surfaces during driving.

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