NS EN 14781 : 1ED 2006

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
  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

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.