There are three (3) different kinds of shock absorbers Superlift offers. Each kind was made to perfectly satisfy your need when it comes to performance and budget. Either Superide of Superide Select (SS) is included on most lift systems. Superide Select Remote (SSR) reservoir shocks are sold separately. Contrary to what others think, a gas-charged shock won’t essentially ride firmer than the hydraulic shock. Ride quality is actually influenced by valving. There are several benefits in using a gas-pressurized monotube shock. Primary benefits are a more accurate valving and a lesser fading because of a decrease in oil temperature and foaming. Superlift Superide Shocks are all backed with Limited Lifetime Warranty.