Standard No.:	GB/T 31548-2015
English Name:	Series of electric bicycle tyres
Chinese Name:	电动自行车轮胎系列
Chinese Classification:	G41    Tyre
Professional Classification:	GB    National Standard
ICS Classification:	83.160.10 83.160.10    Road vehicle tyres 83.160.10
Issued by:	AQSIQ; SAC
Issued on:	2015-05-15
Implemented on:	2016-2-1
Status:	superseded
Superseded by:	GB/T 31548-2023 Series of electric bicycle tyres
Superseded on:	2024-7-1
Language:	English
File Format:	PDF
Word Count:	7500 words
Price(USD):	200.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the terms and definitions, classification, size designations, basic parameters, main dimensions and measuring methods of electric bicycle tyres. This standard is applicable to the pneumatic tyres for electric bicycle. This standard is not applicable to non-pneumatic tyres. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documents (including any amendment) applies. GB/T 6326 Tyre terms and definitions GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 31580 Series of electric bicycle rims HG/T 2906 Static loaded performance testing method for cycle tyres 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 6326 and the following apply. 3.1 croctchet type tyre tyre with bead core made by steel wire or other high-strength materials, and the shape of bead matching with croctchet type (CT) rim

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Size designations, basic parameters and main dimensions 6 Measurement method Annex A (Normative) Calculation of tyre dimensions Annex B (Informative) New tyres with section width (S) exceeding 54 mm - basic parameters and main dimensions