King offers its air shocks in 2- and 2.5-inch diameters. Air bypass shocks, not shown, are also on the King menu. Air shocks are compact, easy to adjust, and offer a streamlined installation with a single set of upper and lower shock tabs. Even though today's air shocks are better than older versions, King recommends that its air shocks be used on lightweight vehicles only, and only for off-road-specific applications. This means air shocks are a perfect choice for a lightweight rock buggy, but not for a street-driven Jeep. Walker Evans Racing and Sway-A-Way share this opinion.