What is ISO 4000-2 about?
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.
Who is ISO 4000-2 for?
ISO 4000-2 on passenger car tyres and rims is applicable to:
- Passenger car tyres and rims manufacturers and suppliers
- Passenger car tyres and rims users
- Passenger car manufacturers
Why should you use ISO 4000-2?
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.
What’s changed since the last update?
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
- The article of valve hole for snap-in valve and clamp-in valve has been divided
- The tolerance of circumference for round hump has been corrected