Shock Absorber Assembly of a Suspension System of a Vehicle and Suspension System

A shock absorber assembly of a suspension system of a vehicle, the shock absorber comprising:

• a top mount that includes a radially extending protuberance;
• and a jounce bumper that includes a main body made of a first material an elastic material and a fixing element made of a material that is harder than the elastic material of the main body, the fixing element including a wall that extends at least partially around an outer circumference of an upper part of the main body, the fixing element having an elastic retaining area configured to cooperate with the top mount protuberance to fix the jounce bumper to the top mount, there being a gap between the outer circumference of the upper part of the main body and the wall of the fixing element to enable the main body to expand radially outward toward the fixing element wall when the main body is compressed during use.