• EN 14781 : 2005

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    RACING BICYCLES - SAFETY REQUIREMENTS AND TEST METHODS

    Available format(s): 

    Superseded date:  06-11-2021

    Language(s): 

    Published date:  13-01-2013

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Requirements and test methods
      4.1 Brake tests and strength tests - special
           requirements
           4.1.1 Definition of brake tests
           4.1.2 Definition of strength tests
           4.1.3 Numbers and condition of specimens for the
                  strength tests
           4.1.4 Accuracy tolerances of test conditions
                  for brake tests and strength tests
      4.2 Sharp edges
      4.3 Security and strength of safety-related fasteners
           4.3.1 Security of screws
           4.3.2 Minimum failure torque
      4.4 Crack detection methods
      4.5 Protrusions
           4.5.1 Requirement
           4.5.2 Test method
      4.6 Brakes
           4.6.1 Braking-systems
           4.6.2 Hand-operated brakes
           4.6.3 Attachment of brake assembly and cable
                  requirements
           4.6.4 Brake-block and brake-pad assemblies -
                  security test
           4.6.5 Brake adjustment
           4.6.6 Hand-operated braking-system - strength test
           4.6.7 Braking performance
           4.6.8 Brakes - heat-resistance test
      4.7 Steering
           4.7.1 Handlebar - dimensions
           4.7.2 Handlebar grip-areas, grips and plugs
           4.7.3 Handlebar-stem - insertion-depth mark or
                  positive stop
           4.7.4 Handlebar stem-extension to fork-stem -
                  clamping requirements
           4.7.5 Steering stability
           4.7.6 Steering assembly - static strength and
                  security tests
           4.7.7 Handlebar and stem assembly - fatigue test
      4.8 Frames
           4.8.1 Suspension-frames - special requirements
           4.8.2 Frame and front fork assembly - impact
                  test (falling mass)
           4.8.3 Frame and front fork assembly - impact
                  test (falling frame)
           4.8.4 Frame - fatigue test with pedalling forces
           4.8.5 Frame - fatigue test with horizontal forces
      4.9 Front fork
           4.9.1 General
           4.9.2 Means of location of the axle and wheel
                  retention
           4.9.3 Suspension-forks - special requirements
           4.9.4 Front fork - static bending test
           4.9.5 Front fork - rearward impact test
           4.9.6 Front fork - bending fatigue test
           4.9.7 Forks intended for use with hub- or disc-brakes
           4.9.8 Tensile test for a non-welded fork
      4.10 Wheels and wheel/tyre assemblies
           4.10.1 Rotational accuracy
           4.10.2 Wheel/tyre assembly - clearance
           4.10.3 Wheel/tyre assembly - static strength test
           4.10.4 Wheel retention
           4.10.5 Wheels - quick-release devices - operating
                  features
      4.11 Rims, tyres and tube
           4.11.1 Tyre inflation pressure
           4.11.2 Tyre and rim compatibility
           4.11.3 Tubular tyres and rims
           4.11.4 Rim wear
      4.12 Pedals and pedal/crank drive system
           4.12.1 Foot retention
           4.12.2 Pedal clearance
           4.12.3 Pedal/pedal-spindle assembly - static
                  strength test
           4.12.4 Pedal-spindle - impact test
           4.12.5 Pedal/pedal-spindle - dynamic durability test
           4.12.6 Drive-system - static strength test
           4.12.7 Crank assembly - fatigue test
      4.13 Saddles and seat-pillars
           4.13.1 General
           4.13.2 Limiting dimensions
           4.13.3 Seat-pillar - insertion depth mark or
                  positive stop
           4.13.4 Saddle/seat-pillar - security test
           4.13.5 Saddle - static strength test
           4.13.6 Saddle and seat-pillar clamp - fatigue test
           4.13.7 Seat-pillar - fatigue test
      4.14 Drive-chain
      4.15 Chain-guard
           4.15.1 General
           4.15.2 Requirement
           4.15.3 Chain-wheel disc diameter
           4.15.4 Chain protective device
           4.15.5 Combined front gear-change guide
      4.16 Spoke protector
      4.17 Lighting systems and reflectors
           4.17.1 Lighting and reflectors
           4.17.2 Wiring harness
      4.18 Warning device
      4.19 Handling and operation of fully-assembled bicycle
           4.19.1 Requirement
           4.19.2 Test method
    5 Manufacturer's instructions
    6 Marking
      6.1 Requirements
      6.2 Durability test
           6.2.1 Requirement
           6.2.2 Test method
    Annex A (informative) Explanation of the method of least squares
                          for obtaining line of best fit and +/-20 %
                          limit lines for braking performance linearity
    Annex B (informative) Steering geometry
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes safety and performance requirements for the design, assembly and testing of racing bicycles and sub-assemblies, and lays down guidelines for manufacture's instructions on the use and care of such bicycles.

    Standards Referenced By This Book - (Show below) - (Hide below)

    S.R. CEN/TR 16041:2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14764
    S.R. CEN/TR 16043:2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14766
    BS PD CEN/TR 16044 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14781
    BS PD CEN/TR 16041 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14764
    BS PD CEN/TR 16043 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14766
    S.R. CEN/TR 16042:2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14765
    CEN/TR 16042 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14765
    UNI CEN/TR 16042 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14765
    UNI CEN/TR 16043 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14766
    UNI CEN/TR 16044 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14781
    UNI CEN/TR 16041 : 2010 Bicycles - Replies to requests for interpretation of EN 14764
    S.R. CEN/TR 16044:2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14781
    CEN/TR 16043 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14766
    CEN/TR 16044 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14781
    BS PD CEN/TR 16042 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14765
    CEN/TR 16041 : 2010 BICYCLES - REPLIES TO REQUESTS FOR INTERPRETATION OF EN 14764

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 7636:1984 Bells for bicycles and mopeds Technical specifications
    ISO 1101:2017 Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form, orientation, location and run-out
    ISO 9633:2001 Cycle chains — Characteristics and test methods
    ISO 5775-1:2014 Bicycle tyres and rims Part 1: Tyre designations and dimensions
    ISO 3452-3:2013 Non-destructive testing Penetrant testing Part 3: Reference test blocks
    ISO 5775-2:2015 Bicycle tyres and rims Part 2: Rims
    ISO 3452-2:2013 Non-destructive testing Penetrant testing Part 2: Testing of penetrant materials
    ISO 3452-4:1998 Non-destructive testing Penetrant testing Part 4: Equipment
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