Are 90/90-19 and 3.25-19 Motorcycle Tires the Same Size?

Learn why 90/90-19 and 3.25-19 refer to the same motorcycle tire size despite different measurement units.

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Yes, 90/90-19 and 3.25-19 refer to the same tire size in different notation systems. The first part (90 or 3.25) represents the tire's width in millimeters or inches, while the 19 indicates the diameter of the wheel rim in inches. These sizes are often used for motorcycle tires, so choosing the correct size based on the vehicle's specifications is important.

FAQs & Answers

  1. What does 90/90-19 mean on a motorcycle tire? 90/90-19 indicates a tire width of 90 millimeters, an aspect ratio of 90%, and a rim diameter of 19 inches.
  2. How do 90/90-19 and 3.25-19 tires compare? 90/90-19 and 3.25-19 represent the same tire size, with 90 mm approximately equal to 3.25 inches in width, both fitting a 19-inch rim.
  3. Can I use a 3.25-19 tire instead of a 90/90-19 on my motorcycle? Yes, because they are equivalent sizes, a 3.25-19 tire can replace a 90/90-19 tire if compatible with your motorcycle's specifications.

Watch More

For more insights on motorcycle tire sizes and maintenance tips, check out our guides on reading tire markings and selecting the best tires for different riding conditions.

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