These shock absorber enhance the comfort and control of the vehicle while driving thanks to the internal hydraulic system. Linear or progressive springs are chosen depending on the vehicle application type. The spring preload with threaded ring (rather than pre-determinate snaps) allows for a more cautious calibration of the rear used with the pilot alone, either with the passenger or with full load. TECHNICAL FEATURES Gas pressurized mono-cameral shock absorber (Nitrogen), with oil / gas separator floating piston. High-strength alloy steel shock absorbing body, aluminium alloy heads made from full CNC machining. ADJUSTMENTS