What does a R2 on a tire mean?

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Study for the Aviation Maintenance Technician, Second Class (AMT2) SWE Exam. Use flashcards and multiple-choice questions with hints and explanations to ensure exam readiness!

Multiple Choice

What does a R2 on a tire mean?

Explanation:
The marking shows how many times the tire has been retreaded. The letter R stands for retread, and the number indicates the count. So R2 means this tire has been retreaded twice. This helps track how much life the tire has left and whether it’s still within the manufacturer’s retread limits. The other options don’t fit standard sidewall markings on aircraft tires: radius, tread depth on the right side, or any “root-to-tire” ratio aren’t indicated by this R2 notation.

The marking shows how many times the tire has been retreaded. The letter R stands for retread, and the number indicates the count. So R2 means this tire has been retreaded twice. This helps track how much life the tire has left and whether it’s still within the manufacturer’s retread limits. The other options don’t fit standard sidewall markings on aircraft tires: radius, tread depth on the right side, or any “root-to-tire” ratio aren’t indicated by this R2 notation.

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