Progressive 944 FST Ultra Shocks For Harley Touring 944 Series Ultra Touring Shocks are designed to deliver a comfortable ride at a 1 lowered stance. Built around Progressive's latest proprietary patented FST technology, the Ultra Touring Shocks utilize all the suspension travel provided by the full-length stock units, but in a 1 lowered ride height. The unique Ultra Touring spring combination not only delivers a lowered ride height while it's being ridden, but also while it's on the side stand. Features: Frequency Sensing Technology (Fst) allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality Adjust spring pre-load by hand, no special tool needed Progressive Rate Main springs specifically designed for touring Available in Standard, Heavy Duty, and Super Duty spring rates Lifetime Limited Warranty