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Overview ISO 4251-2:2019 specifies the tyre load ratings for code-designated diagonal (ply‑rating marked, PR) tyres used on agricultural tractors, trailers and machines. It defines how load capacitie…
1 Scope This document establishes the load ratings of the ply rating marked series of tyres for agricultural tractors and machines. Tyre designation and dimensions, and approved rim contours are give…