4 Test methods
4.1 Handlebar grips and plugs
4.1.1 Freezing test
4.1.2 Hot water test
4.2 Handlebar stem — Lateral bending test
4.3 Handlebar and stem assembly — Lateral bending test
4.4 Handlebar stem — Forward bending test
4.4.1 Test method for stage 1
4.4.2 Test method for stage 2
4.5 Handlebar to handlebar stem — Torsional security test
4.6 Handlebar stem to fork steerer — Torsional security test
4.8 Aerodynamic extensions to handlebar — Torsional security test
4.9 Handlebar and stem assembly — Fatigue test
4.9.1 Test method for city and trekking, young adult, and mountain bicycles
4.9.2 Test method for racing bicycles
== Partie 6: Méthodes d'essai du cadre et de la fourche ==