Unique Ultra Touring spring configuration provides the superb ride quality and suspension travel of a 13 in. shock but the custom lowered look of a 12 in. shock Automatically adjust damping for superior ride quality by allowing the shocks to sense the frequency of a bump Whether the bike is being ridden or on its stand, the unique spring combination delivers a dropped ride height which allows you to better manage your bike at intersections and when parking You no longer need special tools to adjust, simply adjust the spring pre-load by hand Progressive rate main springs specifically designed for touring models