Active roller bar damper assembly

An active roll bar damper assembly for an active roll bar, the active roll bar damper assembly comprising:

• a first subassembly for mounting to the active roll bar, the first subassembly comprising:
• a rigid first mass comprising a first annular sector defining a first aperture, the first annular sector having opposed first ends;
• a first casing partially encapsulating the first annular sector such that the opposed first ends are uncovered;
• and
• at least one first spring disposed in the first aperture for positioning between the active roll bar and the first mass;
• a second subassembly for mounting to the active roll bar, the second subassembly comprising:
• a rigid second mass comprising a second annular sector defining a second aperture, the second annular sector having opposed second ends;
• a second casing partially encapsulating the second annular sector such that the opposed second ends are uncovered;
• and
• at least one second spring disposed in the second aperture for positioning between the active roll bar and the first mass;
• wherein the first subassembly and the second subassembly are configured to be assembled onto opposing sides of the active roll bar in an engaged position in which the opposed first ends abut against the respective opposed second ends, limiting compression of the first and second springs.