New 3-in-1 surprise caps enable construction in 3 various designs – emulsion / rebound / zero rebound, to match shock dampening traits to various driving designs and differing track conditions. The Emulsion configuration utilizes an O-ring to seal limitation to human body, mixing oil and atmosphere within the surprise. Typically provides exceptional traction on numerous surfaces and is recommended as a starting point for most typical track conditions. The Rebound alternative utilising the mobile membrane is better matched to lessen traction and flat slippery tracks. This surprise set-up has got the numerous rebound right out of the three create choices. The Zero Rebound setup created by using the ribbed membrane layer is way better suited for super bumpy songs. This set-up doesn't have rebound.