<P>Elément support de roue de bicyclette (S), notamment fourche de bicyclette (F), équipé d'un moyen amortisseur de vibrations (A) comportant une couche de matière viscoélastique fixée contre une zone de l'élément support, et une pièce de contrainte rigide fixée contre la couche de matière viscoélastique.</P>
The vibration damper for a bicycle wheel support comprises a layer of viscoelastic material and a rigid constraining piece fixed to it. The viscoelastic vibration damper has a curved shape to fit around a front fork element or rear strut and is 50-60 mm long. The constraining element is made of a light alloy such as aluminum, zinc and magnesium alloy. The damper is fixed by gluing to the front or rear forks of a bicycle, to the rear of and in the middle section of each arm. It is disclosed that it may also be fitted to the side of, or completely around the fork arm. A wheel support element, a front fork and rear struts comprising the vibration damper are claimed.