Correspondent members are individuals, companies, corporations or organisation in the Nordic countries who:
a) has as a main occupation the selling of tyres, rims, wheels or the allocation of licences for special tyre retreading technology.
b) has as a main occupation, retreding of tyres.
c) has as a main occupation sales of tyre or wheel accessories.
d) has as the main occupation to work with issues relatated to tyres or rims.
Correspondent members receive minutes and other relevant information. On receiving a special invitation, it is possible for a correspondent member to participate at the Board’s ordinary meetings.
Any issues which members want to be discussed at these meetings should be given notice of at the latest three weeks before the meeting.
Anyone who wants to become a member should submit a written application to the Board, which will then decide.
Membership can be terminated 12 months after a written application to this effect is submitted to the Board.
2019 STRO data book contains new and older data for over 7000 different tire sizes. In 2019 STRO data book, there have been more than 200 updates. For example, the book contains 40 new passenger car dimensions, 20 new dimensions for heavy vehicles. And all the other chapters are updated with new standard tire sizes. Among the carmanufactures, there are 50 new car models and existing car models have been updated with new tire dimensions.Order