BS ISO 3911:2021

This standard BS ISO 3911:2021 Wheels and rims for pneumatic tyres. Vocabulary, designation and marking is classified in these ICS categories:

• 43.040.50 Transmissions, suspensions
• 01.040.43 Road vehicle engineering (Vocabularies)

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. Also specified are the content, location and minimum size of the wheel and rim marking, with the purpose of establishing, on a worldwide basis, a uniform identification system for wheels and rims.