European Tyre and Rim Technical Organisation
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The European Tyre and Rim Technical Organisation (ETRTO) exists to specify and harmonise sizes of pneumatic tyres and their associated rims across the European Union. ETRTO sizes apply to tyres for vehicles of all types, including bicycles. The great advantage of ISO/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.
[edit] See also
- ISO 5775 – standard bicycle tyre and rim designations
[edit] External links
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