Shock Absorber Adjustable Single-orifice Material Steel Force 16.4 lb Max Cycle Rate 60 per min Max Weight 1 102 lb Rod Thread Size M25x1.5 Locking No Rod Dia 8 mm Cylinder Dia 25 mm Stroke 40 mm Extended Length 200.5 mm Fixed Resistance No Adjustable Resistance Yes Includes Adjustment Knob