ISO 3911:2021

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ISO 3911:2021 is an international standard that defines terms, designation, and marking systems for wheels and rims used with pneumatic tires. The standard aims to establish a uniform identification system for wheels and rims across the world

This document presents a vocabulary of terms related to, and systems for the designation and marking of, wheels and rims intended for use with pneumatic tyres. The intention is to define fundamental wheel and rim terms rather than provide a comprehensive tabulation of all wheel design features.