BS ISO 18804:2021

What is ISO 18804 about?  

ISO 18804 specifies rim dimensions for rims for agricultural, forestry, and construction machines. 

Who is ISO 18804 for?

ISO 18804 on rims for agricultural, forestry and construction machines is useful for: 

• Rims manufacturers and suppliers    
• Manufacturers of agricultural equipment 
• Construction industry 

Why should you use ISO 18804? 

Main function of the rim is supporting and sealing the tire to the wheel. The rim ensures proper fitting between tire and rim and retaining the air inside the tubeless tire. 

ISO 18804 helps you measure rim diameter. 

ISO 18804 gives you information about the dimensions of rims for agricultural, forestry, and construction machines and all the additional information which helps you can manufacture rims for agricultural, forestry, and construction machines in compliance with European standards. 

What’s changed since the last update? 

BS ISO 18804:2021 supersedes ISO 18804:2017, which is withdrawn. 

The main changes compared to the previous edition are as follows: 

• All figures and tables have been corrected 
• The valve hole description for other drop-centre rims has been revised.