Progressive 412 Cruise Shocks For Harley Sportster The 412 Cruise Series shocks are the perfect balance of lowered stance and ride quality. By combining a flat-wire spring with a progressive main spring the 12.5 shock sits like 11.5 units under the weight of the bike, yet utilize the full stroke as terrain demands it.The result is a lowered shock that rides like a traditional height unit. Features: 5-position cam style preload adjuster High Pressure Gas Charged for consistent damping performance Available with chrome or black springs Backed by a one-year limited warranty