ChinaAutoRegs｜GB/T 31580-2015英文版翻译/电动自行车轮辋系列
Series of Electric Bicycle Rims

1 SCOPE

This Standard specifies the dimensions and tolerances of electric bicycle rim contours and gives the curves of rim contour for fitting of the tyre to the rim and their main dimensions.
This Standard is applicable to the rims of various series of electric bicycle tyres contained in GB/T 31548.

2 NORMATIVE REFERENCES

The following referenced documents are indispensable for the application of this document. For dated references, only the editions cited apply. For undated references, the latest editions of the normative document (including any amendments) apply.
GB/T 2933 Wheels and rims for pneumatic tyres – Vocabulary, designation and marking
GB/T 6326 Tyre terms and definitions
GB/T 31546 Electric bicycle tyres
GB/T 31548 Series of electric bicycle tyres

3 TERMS AND DEFINITIONS

For the purpose of this document, the terms and definitions given in GB/T 2933 and GB/T 6326 apply.

4 SYMBOLS

For the purpose of this document, the following symbols apply.

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