Support component of a trailer coupling or a load bearer

The component (60a) has a tubular body (67a) in which a circumferential wall (62a) of an inner chamber (63a) is limited, where the inner chamber extends into a longitudinal extension direction (65). The inner chamber is reinforced with reinforcement mass (64) over a partial section of the longitudinal extension direction, where the reinforcement mass is deformable during introduction into the inner chamber. The reinforcement mass incorporates reinforcement fibers such as plastic fibers, metal fibers and carbon fibers.