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9 This shock graph was taken from a shock we used in testing for bump setups and is useful for creating the high rebound rates needed to control the 1,000- to 1,200-ppi spring rates we often see with bump devices. It is adjustable within a range of 1,000 pounds to 1,300 pounds at 3.0 inches per second of movement. There is a high nose designed in for the rebound side so that the shock will keep the front of the car down on the bump and where the ride spring cannot move it very fast. A 200-pound force equal to a ride spring will only move the shock about 0.200 inches per second.