NBN EN 14766 : 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
       4.3.3 Folding bicycles
  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 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
       4.8.6 Frame - fatigue test with a vertical force
  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
  4.10 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
  4.11 Rims, tyres and tube
       4.11.1 Tyre inflation pressure
       4.11.2 Tyre and rim compatibility
       4.11.3 Rim-wear
  4.12 Mudguards
       4.12.1 Requirement
       4.12.2 Stage 1: Test method - tangential obstruction
       4.12.3 Stage 2: Test method - radial force
  4.13 Pedals and pedal/crank drive system
       4.13.1 Pedal tread
       4.13.2 Pedal clearance
       4.13.3 Pedal/pedal-spindle assembly - static strength test
       4.13.4 Pedal-spindle - impact test
       4.13.5 Pedal/pedal-spindle - dynamic durability test
       4.13.6 Drive-system - static strength test
       4.13.7 Crank assembly - fatigue tests
  4.14 Saddles and seat-pillars
       4.14.1 General
       4.14.2 Limiting dimensions
       4.14.3 Seat-pillar - Insertion-depth mark or positive stop
       4.14.4 Saddle/seat pillar - security test
       4.14.5 Saddle - static strength test
       4.14.6 Saddle and seat-pillar clamp - fatigue test
       4.14.7 Seat-pillar - fatigue
  4.15 Drive-chain
  4.16 Chain-guard
       4.16.1 Requirement
       4.16.2 Chain-wheel disc diameter
       4.16.3 Chain protective de
       4.16.4 Combined front gear-change guide
  4.17 Spoke protector
  4.18 Lighting systems and reflectors
       4.18.1 Lighting and reflectors
       4.18.2 Wiring harness
  4.19 Warning device
  4.20 Road-test on a fully-assembled bicycle
       4.20.1 Requirement
       4.20.2 Test method
5 Manufacturer's instructions
6 Marking
  6.1 Requirement
  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 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 bicycles and sub-assemblies intended for off-road, rough-terrain use, and lays down guide lines for instructions on the use and care of such bicycles.