The European Tyre and Rim Technical Organisation (ETRTO) exists to specify and harmonise sizes of rims and their associated

pneumatic tyre Pneumatics (from Greek ‘wind, breath’) is a branch of engineering that makes use of gas or pressurized air. Pneumatic systems used in industry are commonly powered by compressed air or compressed inert gases. A centrally located and ele ...

s across the

European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...

. ETRTO sizes apply to rims and tyres for vehicles of all types, including bicycles. The great advantage of ETRTO sizing is that it is unambiguous; previously, nominal dimensions were used which were interpreted in different ways by different countries and manufacturers - a problem for the end user. ETRTO works in liaison with the

International Organization for Standardization The International Organization for Standardization (ISO ) is an international standard development organization composed of representatives from the national standards organizations of member countries. Membership requirements are given in Ar ...

to develop relevant standards.List of ISO committees in liaison with ETRTO
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References

External links

ETRTO home page
Motor trade associations Pan-European trade and professional organizations Standards organisations in Belgium Tire industry {{Europe-org-stub

See also

References

External links