EN 14781:2005

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

This European Standard specifies 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.This European Standard applies to racing bicycles intended for high-speed amateur use on public roads, and on which the saddle can be adjusted to provide a maximum saddle height of 635 mm or more.This European Standard does not apply to mountain bicycles and to specialised types of racing bicycle such as tandems or bicycles designed and equipped for use in sanctioned competitive events.NOTEFor bicycles with a saddle height of = 435 mm see EN 71 and with a maximum saddle height of more than 435 mm and less than 635 mm see EN 14765.