ISO 4000-2 is part two of the multi-series standard on passenger car tyres and rims.
ISO 4000-2 specifies the designation, contour and dimensions of 5° tapered (drop-centre) rims primarily intended for passenger cars.
ISO 4000-2 on passenger car tyres and rims is applicable to:
Specifications for the rims can be complex and cannot be understood by everyone.
ISO 4000-2 provides designation and markings for rims that you can use to identify and trace the rims.
ISO 4000-2 gives guidelines for the valve hole edges on the tyre side of rims.
ISO 4000-2 lays out dimensions and tolerances of the rims which will help you in manufacturing more durable rims.
BS ISO 4000-2:2021 is the sixth edition that cancels and replaces the fifth edition (ISO 4000-2:2013), which has been technically revised.
The main changes compared to the previous edition are as follows
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.