TeraFlex TJ Speedbump bump stops are an innovative composite bump stop system designed for high-performance JK Wrangler applications. The true progressive nature of the Speedbump bump stop allows for the reduction of suspension compressing impacts and the associated harsh bump stop bottoming. The absorption of harsh impacts experienced off road or even on a poorly maintained highway will reduce the risk of axle housing bends as well as provide an increased ability to maintain vehicle control.