Our cartridge sets are specially developed for each specific vehicle and intended use

Silicone spacers included

bolted and bonded to increase strength

case and footrest brackets

Wunderlich - Suspension Shock Absorber S4 + HPA K-Type-Fuel Filters Our cartridge sets are speciallyFacts and Product Features of Wunderlich Suspension powered by TracTive S4 HPA Shock Absorbers High performance shock absorber of the latest generation as an upgrade or replacement for the stock suspension. Designed for the high demands of adventure riders who frequently go off road and touring riders who travel with heavy loads, as well as for riders who desire extra safety reserves. Equipped with the PDS bump stop system and hydraulic spring preload