EBC Brakes Ultimax Isuzu Dmax 02 08, Mu7 04 Eibach ERS Bump Stop 2.17" Length (EBS770040) Eibach Elastomeric Bump Stop Dia. 0.75 in Len: 2.17 in Rate: 1229 Eibach EBS770044 Eibach Shock Bump Stops Summit Racing. Bump Stop by Eibach Eibach bump stops are made from a micro cellular polyurethane elastomer. They are highly tunable and adjustable, and create a highly progressive, rising rate effect as the springs approach bottoming and possible coil binding. Several Circle Track sanctioning bodies have approved the use of bump stops to help resolve possible control and safety issues relating to abrupt coil bind in softer spring setups. With progressive compression and damping characteristics, Eibach bump stops are your solution for smoother wheel control and the ability to deliver a positive impact on cornering grip and overall handling. Features Length (in): 2. 17 Diameter (in): 0. 75 I. D.. Rate (lbs in): 1229 Rate (kg mm): 21. 99 Made from Race Proven Micro Cellular Polyurethane Elsatomer Secondary Spring Tuning Progressive Compression Characteristics Extensive Range of Rates and Dimensions Benefits Maximum Tuning Flexibility Tremendous Deflection Potential with Near Zero Lateral Expansion Applications Universal What's In The Box? 1 Bump Stop Warranty Eibach Million Mile Warranty