The Progressive Suspension 944 Ultra Low with the Quik Preload System (QPS) makes adjusting the preload on PS-944 Series shocks easier than ever before. With QPS, it's no longer necessary to take saddlebags off to adjust the sag when going from a single rider, to a two up riding configuration, and then back to a solo riding experience. This means the suspension can be set up for changes in weight load in less than a minute, couple this with the patented Frequency Sensing Technology (FST), and the result is a perfect ride every time. With 30 complete turns of fine-tuning preload adjustment, the maximum performance of the suspension can be dialed in with a few twists of an 8mm socket. The 944 Ultra Low with QPS utilizes a sealed gear drive to smoothly adjust preload and offers the same range of preload adjustment as the original 944 series shocks. Like all 944 Series shocks, the 944 Series with QPS comes with a Lifetime Limited Warranty.