What does the 'R' on tires mean?

1 Answers
AliviaMarie
07/29/25 9:22pm
The 'R' on tires stands for radial tires. Here is an introduction to the related content: 1. English abbreviation: 'R' is the abbreviation of the English word 'radial'. 2. Tire classification: According to their structure, car tires can be divided into radial tires and bias tires. 3. Representation: In tire specifications, 'R' indicates that the tire type is a radial tire, while bias tires are represented by the letter 'B'. Below is an introduction to the 27.5×1.95 tire comparison table: 1. Diameter: 27.5 is the diameter of the rim. 2. Width: 1.95 is the width of the outer tire. 3. Outer tire: The diameter of the rim increases when the outer tire is added. 4. Wheel circumference: The circumference of a 27.5×1.95 wheel is 2115mm. 5. Meaning of numbers: 27.5 inches refers only to the diameter of the steel rim and does not include the width of the outer tire. 6. Parameter settings: The recommended parameter setting for a 27.5×1.95 tire speedometer is 2155.
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