Regal. A component (mounted in the center of the Spring) which cushions the Spring as it is compressed. A pleated and flexible protective device used over bare metal that collapses and expands with travel. Jounce Bumper. Access. Air Bumper. Auxiliary. Boot. Coil Damper. Dust. Jounce Bumper. Seat. Stopper. Suspension Shock Absorber Bellows. Vibration Damper. Included with: Shock, Shock Absorber.