Further to our meeting in Bangkok I’ve been in discussion with our head office and we can agree to your request to have several tread patterns on a single ECE R30/54/75 approval. However, the tyres must be:
- Of the same size
- Of the same speed/load rating
- Of the same construction pattern (number/type of plies) and using the same compounds
Our opinion is that the tread design itself is not particularly important with regards to the speed/load testing, but the construction of the tyre is. We will make a point of confirming the above points during factory audits. Note that this does not apply to tyres approved to ECE R117.
Also, there is no restriction to include additional assembly plants to the approvals, but additional plants will need to be given an audit and cleared for Conformity of Production by VCA before we can include them.
In relation to this, please note that we would like to conduct the ASEAN tyre factory audit sometime in April/May/June 2016. Please can you advise when would be suitable for you.